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HomeMy WebLinkAbout10-01-2024 Planning Commission Packet PLANNING COMMISSION City Hall—Council Chambers, 3989 Central Ave NE Tuesday, October 01, 2024 6:00 PM AGENDA ATTENDANCE INFORMATION FOR THE PUBLIC Members of the public who wish to attend may do so in-person, or by using Microsoft Teams Meeting at columbiaheightsmn.gov/joinameeting: ID 252 586 988 371, Passcode ugquG3. For questions, please contact Administration at 763-706-3610. Auxiliary aids or other accommodations for individuals with disabilities are available upon request when the request is made at least 72 hours in advance. Please contact Administration at 763 -706-3610 to make arrangements. CALL TO ORDER/ROLL CALL APPROVE MINUTES 1. Approval of August 7, 2024 Planning Commission Meeting Minutes PUBLIC HEARINGS 2. Site Plan Review for 999 50th Avenue NE MOTION: Move to waive the reading of draft Resolution No. 2024 -069, a Site Plan Review for 999 50th Avenue NE, there being ample copies available to the public. MOTION: Move to recommend the Planning Commission approve draft Resolution No. 2024-069, a Site Plan Review for 999 50th Avenue NE, as presented and subject to the conditions of approval listed in the draft resolution. 3. Conditional Use Permit for Over-Height Sound Barrier (Fence) at 999 50th Avenue NE MOTION: Move to close the public hearing and waive the reading of Draft Resolution No. 2024-068, there being ample copies available to the public. MOTION: Move to recommend City Council approve the Conditional Use Permit as presented, subject to the following conditions of approval. OTHER BUSINESS ADJOURNMENT 1 City of Columbia Heights AGENDA October 01, 2024 Planning Commission Page 2 Auxiliary aids or other accommodations for individuals with disabilities are available upon request when the request is made at least 72 hours in advance. Please contact Administration at 763-706-3610 to make arrangements. 2 MINUTES CITY OF COLUMBIA HEIGHTS PLANNING COMMISSION MEETING Wednesday, August 07, 2024 The meeting was called to order at 6:00 pm by Chair Wolfe. CALL TO ORDER/ROLL CALL Commissioners present: Eric Sahnow, Tom Kaiser, Paul Moses, Laurel Deneen, Clara Wolfe, and John Gianoulis Also present: Andrew Boucher, City Planner; Sarah LaVoie, Administrative Assistant; Mitch Forney, Community Development Director; Connie Buesgens, Council Liaison. APPROVAL OF MINUTES 1. Approval of May 07, 2024 Planning Commission Meeting Minutes Motion by Sahnow, seconded by Gianoulis, to approve the minutes from the meeting of May 07, 2024. All ayes. MOTION PASSED. PUBLIC HEARINGS 2. Zoning Ordinance Amendments to amend Chapter 9 – Land Use: 9.103 Definitions 9.107 Specific Development Standards 9.104 Administration and Enforcement 9.109 Residential Districts 9.105 Nonconformities 9.110 Commercial Districts 9.106 General Development Standards 9.111 Industrial Districts Introduction: Boucher stated at the July Work Session, staff briefed City Council on discussed potential amendments and updates to City Zoning Code – Chapter 9 Land Use based on observations, feedback, and recommendations from staff and community members to provide more flexibility in the Zoning Code that reflect the needs of the community while encouraging consistency as future development occurs. Boucher added Some of these updates include 9.103 Definitions for uses that are presently allowed in residential, commercial, and industrial districts and have specific development standards but are not currently defined in code such as: arcade, billiards hall, consignment/secondhand store, firearms dealer, professional service, professional studio, etc. These definitions will also more accurately reflect housing and family trends as currently there are no definitions for single -family dwelling, two-family dwellings, and rental unit. Other changes will include an amendment to the existing definition of “Family” to remove unrelated occupancy maximums, new definitions for “Dwelling Unit, Accessory” and “Family, Shared Living Arrangement” to reflect current housing trends and a growing need to reduce housing expenses while encouraging social contact, mutual support, and assistance amongst diverse communities. Boucher mentioned 9.104 Administration and Enforcement includes language to allow minor subdivisions (lot line adjustments) to be approved through administrative review if the proposal 3 Item 1. City of Columbia Heights MINUTES August 07, 2024 Planning Commission Meeting Page 2 does not require additional right-of-way or alters utility easements. Language in 9.105 Nonconformities is proposed to be amended to be consistent with MN Statute 934.36 Nonconformities Subd. 4. Nonconformities; certain classes of property. Boucher noted 9.106 General Development Standards includes language to clarify the square footage requirement for building permits for accessory structures from 120 sq. ft. to 200 sq. ft. as well as introducing standards for accessory dwelling units. Other sections of 9.106 General Development Standards being updated include establishing a process for reviewing artificial turf through the existing code for Land Alteration to demonstrate that the proposed turf is permeable, the types of materials used, and whether there is a potential for illicit discharge, and Tree Preservation and Planting Standards will address turf as an impervious surface unless a land disturbance permit is issued and approved. Off-street parking and loading clarifies the parking requirements for residential care facilities (6 or fewer) and (7 or more) to reflect the single -family parking requirements for facilities serving (6 or fewer). A maximum paving of 50% of the front yard setback for residential properties is being introduced. Building Design and Sign Regulations are being updated to allow for painted public art and murals. Boucher stated 9.107 Specific Development Standards includes removing any seasonal sales stands that explicitly have development standards and including these uses under “Seasonal Sales Stands”; updating the outdoor play area requirements for “Day Care, Home” to reflect the language for Adult and Child Day Care Centers; and amending the Residential Care Facility standards to exempt facilities serving six or fewer residents from the distance radius and zoning regulations except as otherwise required by law. Boucher mentioned 9.109 Residential Districts includes streamlining the list of permitted accessory uses in all residential districts as well as allowing accessory dwelling units as a permitted accessory use for single-family properties and for shared family living arrangements. One significant change is to establish an impervious surface coverage maximum for residential lots instead of building coverage maximum; these percentages are the same as was required for building coverage; 35% impervious surface coverage for lots less than 6,500 sq. ft. and 30% for lots greater than 6,500 sq. ft. Another significant change is to utilize the langu age used to address minimum lot areas for duplexes in the R-2B district and use that same language to address the minimum lot area and lot width for single-family residences in the R-2A, R-2B, R-3, and R-4 districts to remove the legal nonconforming status for properties below that minimum lot area of 6,500 sq. ft. as this significantly restricts these properties. For the R-2A and R-2B, One/Two Family Residential and Built-As-Duplex districts, twin homes and duplexes are proposed to be permitted uses by law. Boucher stated 9.110 Commercial Districts and 9.111 Industrial Districts will include adjustments to uses that were previously conditional uses, but did not have specific development standards or standards that are being addressed through performance st andards as well as allowing Seasonal Sales Stands as permitted accessory uses. Boucher explained Section 9.104 (F) of the Zoning Ordinance outlines certain findings of fact that must be met in order for the City to grant approval for a zoning amendment. The findings are as follows: 4 Item 1. City of Columbia Heights MINUTES August 07, 2024 Planning Commission Meeting Page 3 a) The amendment is consistent with the comprehensive plan. The City’s 2040 Comprehensive Plan identifies strengthening the identity and image of the community as a desirable place to live, work, and play as well as preserving and enhancing the existing viable commercial and industrial areas within the community. The zoning code amendments proposed will b) The amendment is in the public interest and is not solely for the benefit of a single property owner. The zoning text amendments remove certain barriers that commercial business operators and homeowners have experienced and enables more flexibility in the zoning code by ensuring consistency across zoning districts. c) Where the amendment is to change the zoning classification of a particular property, the existing use of the property and the zoning classification of property within the general area of the property in question are compatible with the proposed zoning classification. The amendment is not to change the zoning classification of a particular property. d) Where the amendment is to change the zoning classification of a particular property, there has been a change in the character or trend of development in the general area of the property in question, which has taken place since such property was placed in its current zoning classification. The amendment is not to change the zoning classification of a particular property. Recommendation: Boucher noted that Staff recommends that the Planning Commission recommend to the City Council; Approval of Draft Zoning Ordinance Amendment No. 1700 amending City Code 9.103 Definitions, 9.104 Administration and Enforcement, 9.105 Nonconformities, 9.106 General Development Standards, 9.107 Specific Development Standards, 9.109 Residential Districts, 9.110 Commercial Districts, and 9.111 Industrial Districts as presented. Questions/Comments from Members: Wolfe clarified that there were two different dates regarding the residential side. A few of them looked like they had just copied the established prior to rather than established after. She wanted to clarify that there were two different square footages with one being prior to January 1, 2005, and the second one is established after January 1. Boucher agreed and explained it would be grandfathering them in. Sahnow asked how it was determined who was going to receive the public hearing notice. Boucher replied that Staff did the same for the tree preservation since there was not a specific site that it could be applied to. He added that Staff tried to get the public hearing notice out three weeks before the hearing. He noted he tried to provide a full readout of the zoning text with the 5 Item 1. City of Columbia Heights MINUTES August 07, 2024 Planning Commission Meeting Page 4 amendments proposed and then breakdowns of the specific changes that are being made. Moses noted that there was something that mentioned three people per dwelling unit and asked if that would be removed. Boucher replied that it would be removed along with no accessory buildings so that it can allow for detached accessory dwelling units. He added that Staff are proposing to amend the definition of family to reflect that there can be more than three unrelated people living in a house together. Deneen asked if there were any standards for safety regarding firearm dealers. Boucher replied that they are licensed federally so the City does not require any City licensing. The specific development standards that address firearms dealers are in relation to shooting ranges. Deneen asked if the standards ATF enforces include extra security when it is closed. Boucher agreed that there are federal standards. Sahnow asked if there were restrictions for firearms dealers on distance awa y from certain uses and types that those facilities are allowed to occupy. Boucher is not for the sales side but there are restrictions for specific development standards requiring a minimum distance for the shooting range. Sahnow asked if the Planning Commission would be able to add conditions to the proposed Ordinance amendment. Boucher replied that they could but he would like the City Attorney to reach through it to make sure it is legal. Deneen agreed and noted she would like to look at that. Deneen asked if there were any restrictions on how many shooting ranges can be within the City. Boucher replied that there are not and the City looks at them like retail sales. Public Hearing Opened. John Nelson, City resident expressed his gratitude that the City was addressing ADUs. He spoke in favor of it and explained that his parents are farmers who are working on moving to Columbia Heights and being any to have a detached dwelling will allow the possibility of multi-generational families who desire to be together while also having some space. Adden Vang, City resident, stated he was in favor of the changes the City is proposing, particularly to the occupancy limits from three unrelated members to no limit. He explained that his heritage is Hmong and his culture lives communally in communities. He added that it also extends to friends. He mentioned that he would like to see changes where unrelated people can also live in the same dwelling in order to keep people of various cultures that come from communal societies in the City. Maddie Kim, City resident, agreed with the previous comments and thanked the commissioners for discussing the issues. She explained that the maximum occupancy limits were important to her. She noted that she is a single young individual who is working and living in the City and wants to find ways to live well with friends and community members. She added that the marriage age is rising and people are looking for ways to live sustainably both financially and for the planet. Studies are showing that being in contact with others and living together is important for mental health. She 6 Item 1. City of Columbia Heights MINUTES August 07, 2024 Planning Commission Meeting Page 5 added that she lives with roommates, and they are all interested in having policies and laws that support society as it is today and as it is continuing to evolve. Boucher clarified that the current firearms-specific development standards include a radius distance requirement of it being located 300 feet away from any residential zone, property, or residential use, and 500 feet away from protected uses such as licensed daycare facilities, public or private educational facilities, schools, parks, and places of worship. Sahnow asked if it was a local or federal standard. Boucher replied that it was a local standard. Wilton Howard, City business owner, shared about Grandma Mae who would like to have her children live with her as she has been aging but cannot because they want to make an unattached dwelling unit in the back but have not been able to. He added that he hopes that the City can change this so grandma Mae and other people like her to be able to live in community. He explained that it is a little bit racist to have nuclear family policies instead of allowing people to live within their cultural values. Deneen noted that many of the individuals who spoke did a lot of research on ADUs and suggested bringing the information to the Council work session. She thanked the commissioners for doing the work. Public Hearing Closed. Motion by Moses, seconded by Sahnow, to waive the reading of draft Ordinance amendment No. 1700, there being ample copies available to the public. All ayes. MOTION PASSED. Motion by Deneen, seconded by Moses, to recommend that the Planning Commission give a positive recommendation on draft Ordinance Amendment No. 1700 to City Council to approve draft Zoning Ordinance Amendment No. 1700 as presented. All ayes. MOTION PASSED. OTHER BUSINESS Boucher mentioned that the Met Council is taking the Comprehensive Plan amendment for Medtronic through the development review committee. There will be a Planning Commission next month with a site plan review and a conditional use permit. He added that in the future Staff would like to do some workshop items with the commissioners such as design guidelines, updating the sign code, and starting the SolSmart process. Forney added that the City Code is a mess and would like to utilize the Planning Commission to clean it up. ADJOURNMENT Wolfe adjourned the meeting at 6:50 pm. Respectfully submitted, 7 Item 1. City of Columbia Heights MINUTES August 07, 2024 Planning Commission Meeting Page 6 8 Item 1. PLANNING COMMISSION AGENDA SECTION PUBLIC HEARINGS MEETING DATE OCTOBER 1, 2024 ITEM: Site Plan Review for 999 50th Avenue NE DEPARTMENT: Community Development BY/DATE: Andrew Boucher, City Planner; 9/25/24 CASE NUMBER: 2024-0904 APPLICANT: Civil Site Group on behalf of Tsunami Express Car Wash DEVELOPMENT: Site Plan Review proposing demolition of the existing building at (999 50th Avenue NE) in preparation for a new car wash facility. LOCATION: 999 50th Avenue NE REQUEST: Site Plan Review PREPARED BY: Andrew Boucher, City Planner INTRODUCTION: Civil Site Group on behalf of Tsunami Express Car Wash has requested approval of a Site Plan Review proposing demolition of the existing vacant office building in preparation for new construction of a car wash (between the intersection of 50th Avenue NE and Tyler Street NE off Central Avenue NE). The Site Plan Review only requires Planning Commission approval. The applicant is proposing to demolish the existing approximately 7,000 sq. ft. vacant building on the 0.83 acre parcel and construct a new single-story 4,300 sq. ft. building containing the car wash bay, mechanical room, storage, office, and restroom as well as two accessory buildings including a 100 sq. ft. employee sales booth and 100 sq. ft. vacuum pump house serving 10 vacuums along the parking stalls. The subject site is located towards the northern end of the municipal boundary along Central Avenue and the surrounding adjacent properties to the immediate north, west, and south are all zoned for Commercial use through the General Business District. The property also abuts several residential neighborhoods to the north, east, and south containing multi-family, duplexes, and single-family residential zoning adjacent to Central Avenue. The subject site is zoned, General Business District, and the use as a car wash is a permitted use in the district subject to Specific Development Standards 9.107 (10) for a car wash. The proposed site plan, as conditioned, shall meet the specific developments applying to car washes including: (a) Water from the car wash shall not drain across any sidewalk or into any public right -of-way; (b) Vacuum facilities shall be located in an enclosed structure or located at least 50 feet from any residential property line to avoid noise impacts. (c) The premises, all adjacent streets, sidewalks, and alleys, and all sidewalks and alleys within 100 feet of the use shall be inspected regularly for the purposes of removing litter found thereon. 9 Item 2. Page 2 The proposed site plan shows 18 parking stalls and four (4) stacking spaces in two (2) lanes for a total lane queue length of eight (8) total vehicles at the entrance. The required parking and vehicl e stacking for an automobile washing facility is two (2) spaces per bay, plus four (4) stacking spaces per bay with one (1) space at the bay exit. COMPREHENSIVE PLAN The City’s 2040 Comprehensive Plan guides the subject site, as well as properties to the north and east for “commercial land use” with additional “commercial land use” to the south as well as “medium density and low density residential” further to the south and east of the commercial parcels. The Plan describes the “commercial” designation as follows: The Commercial land use designation is primarily located along major transportation corridors and includes a variety of retail uses, services, and office uses. The subject site also lies within “Opportunity Area #2B” of the Comprehensive Plan which overlays the segment of the Central Avenue from 37th Avenue NE to the Fridley Border, specifically between Central Avenue NE and 49th Avenue NE. In this regard, the Plan identifies the area as having development potential for future commercial use. Some of the guiding principles for redevelopment include commercial uses with appropriate parking and pedestrian accesses to Central Avenue and emphasizing on businesses that provide goods or services that appeal to the community at large as well as the adjacent neighborhoods. This area is described as having an emphasis on providing sidewalks, four season landscaping, and lighting. SITE PLAN REVIEW 1. Access Two accesses to the site are proposed from the south via 50th Avenue NE, a 60-foot wide public right of way with a road width of 35 feet back of curb to back of curb , through an existing 24 foot wide driveway with directional markings for vehicles exiting the car wash and entering to use the vacuums with an additional access point at the southeastern corner of the property which has directional markings showing an entrance only for the car wash accommodating the vehicle stacking. As a condition of approval, a 24 foot fire access lane must be maintained for emergency vehicle access. 2. Off-Street Parking Supply Requirements. The submitted site plan illustrates a total of 1 8 off-street parking stalls. The Zoning Ordinance requires two (2) spaces per bay plus four (4) stacking spaces for the one (1) car wash bay including one (1) stacking space at the exit. The Zoning Ordinance also specifies that that employee parking is only required when the parking requirements are based on employee counts, as such, the parking requirements for car washes are determined by the number of service bays and stacking spaces, not employee counts. Appropriately, one off-street parking spaces on the site has been designated as a disability stall (in accordance with the American Disability Act) along with an access aisle striped with “No Parking”. The proposed site plan has more off-street parking than required and can accommodate any employee parking needs as presented. 10 Item 2. Page 3 Use Ratio Required Parking Stalls Provided Parking Car Wash Two (2) parking spaces per bay 2 18 (+16) Automobile washing facility–automatic Four (4) stacking spaces per bay with one (1) space at the bay exit 4 stacking spaces at entrance; 1 stacking space at exit. 8 stacking spaces at entrance; 1 stacking space at exit Total 2 spaces 18 spaces (+16) A traffic study was commissioned by the applicant and prepared by a licensed independent engineering firm which shows the anticipated traffic using trip generation estimates for trips during weekday a.m. and p.m. peak hours as well as a daily basis. The Trip Generation Summary provides estimates demonstrates on the in/out traffic for the a.m. and p.m. peak hours as well as the daily trips between the proposed car wash and the previous office use with the following trip estimates as shown: Land Use Type (ITE Codes) Size AM Peak Hour PM Peak Hour Daily In Out In Out Proposed Development Automated Car Wash (947-949) 1 – Tunnel/4,500 SF 15 15 30 30 300 Former Land Use Office (710) 12,500 SF 25 3 3 25 190 Overall Site Change (+/-) -10 +12 +27 +5 +110 Trips were routed to the adjacent roadway network using the following distribution based on existing area travel patterns and engineering judgement:  Central Avenue (Highway 65) North and South: 35% each  Tyler Street: 15%  50th Avenue West, 50th Avenue East, and Polk Place: 5% each The traffic study indicates that all applicable intersections will continue to operate at Level -of-Service C or better and all approaches will continue to operate near the Level-of-Service D/E threshold or better during the peak hours. Minimal changes in queuing are expected nor any impacts to the proposed development driveways are expected. The daily traffic volume changes along Polk Place, 50 th Avenue, and Tyler Street are minimal and within a typical daily variation of most roadways. The provided vehicle stacking distance is adequate and no impacts to 50th Avenue are expected. Some recommendations the traffic study urges the City to consider are locating signage and landscaping to avoid any sight distance issues, review truck maneuverability to limit interna l circulation conflicts, and adding a stop or yield sing along Tyler Street at 50th Avenue to better define the right-of-way for motorists and reduce potential conflicts. As conditioned, the proposed site plan shall meet vehicle access, stacking, and parking requirements in accordance with City Code. 11 Item 2. Page 4 Dimensional Requirements. The proposed off-street parking stalls meet the minimum dimensional requirements of the Ordinance (9 feet in width and 20 feet in depth, 18 feet for stalls which abut curbs) and the provided 24 foot-wide drive aisle is the minimum width required by the Ordinance. Building, Parking, and Vacuum Area Setbacks. Within GB zoning districts, the following setbacks are imposed: Parking Setbacks: Building Setbacks: Front: 15 feet Side: 5 feet Rear: 5 feet Side: 5 feet Front: 15 feet Side: 0 feet Rear: 20 feet Side: 0 feet The proposed site plan configuration would result in the following setbacks for Tsunami Express Car Wash: Parking Setbacks: Building Setbacks: Front: 26 feet Side (Aldi): 45 feet Rear: Approx. 60 feet Side (Residential): 35 feet Front: Approx. 70 feet Side (Aldi): 49.5 feet Rear: 28.6 feet Side (Residential): 40 feet In addition to the building and parking setbacks, car washes have specific development standards requiring that the vacuum facilities must be located in an enclosed structure or located 50 feet from any residential property lines, which will be a condition of approval. The proposed site plan as presented will have building and parking lot setbacks that conform with 9.110 Commercial Districts (C) Lot dimension, height, and bulk requirements. The lot area, setback, height and lot coverage proposed satisfy th ese requirements. The vacuums, as conditioned, will meet the specific development standard setback of 50 feet from residential property lines and/or be enclosed. As a condition of approval, two spaces shall be designated for employee use and an area shall be designated for snow storage and if snowfall exceeds the storage of that area, then it shall be required to be removed from the property. The proposed site plan, as presented, meets the parking and stacking requirements. As conditioned, the proposed site plan shall accommodate vehicle access and stacking in accordance with City Code. 3. Business Hours It is understood that the car wash is proposing 7AM – 8PM hours of operation, Monday – Sunday, and any vacuum use shall be limited to hours of operation as a condition of approval. 4. Trash A trash enclosure is shown on the site plan on the western side of the property alongside the parking lot and in the architectural renderings as being 6 feet, 11 inches from the slab and surrounded by at least three sides with screening walls that are similar to the construction material used on the new building. The open side of the enclosure shall not face any public street or the front yard of any adjacent property. Garbage pickup is expected to occur outside of business hours. 5. Signage The applicant has submitted drawings for on -site signage which will require a building permit and are 12 Item 2. Page 5 subject to review for compliance by City Staff. As a condition of approval, all signage shall be reviewed by the City for approval. 6. Fire Access The fire lane shall be marked with yellow curb paint and signage that states “No Parki ng – Fire Lane”. As a condition of approval, this will be required to remain. 7. Pedestrian and Bicycle Access The site does not have pedestrian or bicycle access along 50th Avenue NE and that access ends at the Aldi property in alignment with Central Ave. The applicant is proposing sidewalk from the edge of the western access to the site and connecting the sidewalk to the access on the eastern side of the property continuing the connection from the Aldi property and ending before the residential neighborhood. The 2040 Comprehensive Plan land use goals state that sites should have pedestrian and bicycle access. Pedestrian access is satisfied, but the site should incorporate a bicycle parking area to satisfy this goal. Staff is recommending that a bicycle rack capable of accommodating two to four bicycles be a condition of approval. 8. Exterior Lighting The applicant has provided a lighting plan and specifications for the proposed lighting fixtures satisfying the requirements of 9.106 General Development Standards (K) and addresses potential security concerns from Public Safety. One of the SCM-LED-08L-SC-40 lighting fixtures shall be relocated so there is no more than 0.5 footcandles along the eastern property line as a condition of approval. 9. Loading Area The applicant is not proposing any discernable loading areas and the code requirements for off-street loading spaces apply to non-residential uses receiving or distributing materials or merchandise by trucks or similar vehicles and has a gross floor area of 5,000 sq. ft. or more are not applicable to this proposal . The loading area requirements are satisfied per 9.106 General Development Standards (L) (12) as there are no deliveries beyond standard commercial delivery vehicles (UPS, Fed-Ex, and USPS) occurring at the front door. A truck turning diagram has been provided showing that garbage trucks can make the appropriate turns and maneuvers within the site. 10. Tree Preservation and Replanting Standards The applicant meets the Tree Preservation and Replanting Standards in 9.106 General Development Standards (M) and has provided both a tree preservation and landscaping plan showing location, size, quantity, and species of all existing and proposed plant materials subject to design standards and considerations reviewed by the Urban Forester. The Urban Forester is satisfied with the proposed preservation an d landscaping plan, but recommends and encourages the applicant to work with Aldi to remove undesirable weed trees from the north of the property that leaning heavily over the property line. The tree preservation identifies 15 trees to be removed, one of which is considered a protected tree, and is proposing to preserve four (4) of the existing trees. The applicant is required to provide one tree for every 50 feet of street frontage and the property has 224 feet of frontage for a total of four (4) trees, a minimum of four (4) trees per one acre of lot coverage, and five (5) replacement trees per the replacement standards for a total of 13 trees proposed. Additionally, the applicant is proposing landscaping containing native plantings and pollinator friendly habitats for the majority of the trees, shrubs, and grasses used. As a condition of approval, the applicant is required to provide a letter of credit or other security as acceptable to the City and shall be deposited with the Zoning Administrator, in an amount equal to 100% of the estimated 13 Item 2. Page 6 cost of landscaping and/or screening. The letter of credit or other security as acceptable to the City, or portions thereof, shall be forfeited to maintain and/or replace materials for a period of time to include at le ast two growing seasons. A portion of the letter of credit or other security as acceptable may be released after one growing season as determined by the Zoning Administrator. The property owner shall be responsible for continued maintenance of landscaping and screening materials to remain in compliance with the requirements of this section. Plant materials that show signs of disease or damage shall be promptly removed and replaced within the next planting season. 11. Building Design The proposed site is considered part of the Highway District in the City Design Guidelines and is subject to the standards and requirements of that design district. The proposed site plan demonstrates compliance with the design objectives of the Highway District, the building is set back from the street behind a parking lot and along a frontage road. The architectural renderings and site plan , as conditioned, show compliance with building configuration, façade and roof treatments, window and door openings, building equipment, drive -through facilities, landscaping and parking meet the design guidelines. Any proposed signage will be subject to the design standards as a condition of approval. 12. Performance Standards The applicant shows a 5’ retaining wall along the eastern property line as the site is 5 feet lower in elevation than the residential property adjacent to the site. The applicant has provided information on the proposed lighting plan showing photometrics, the reclaim system and equipment as well as safety data sheets for all chemicals used for operations. As a condition of approval, the applicant is required to implement the recommendations of a noise impact study to minimize the impact that the car wash and vacuum operations are going to have on the adjacent residential properties. 13. Noise Mitigation The applicant was required to provide a noise impact study and implement the recommendations to minimize the impact that the car wash and vacuum operations are going to have on the adjacent residential properties. The Minnesota Pollution Control Agency defined the noise limit for Residential zones at the property lines at 60 dB(A), decibels and A-weighting of the sound pressure level for the purpose of determining the human response to sound through MN Statute § 7030 Noise Pollution Control. The noise study indicates that the carwash-related noise levels will not exceed the residential limits with the addition of an 8’ tall sound barrier (which requires a Conditional Use Permit) along the east and north property lines on top of the planned retaining wall with the combined height extending 2’ above the top of the car wash entry doors. There are minimum acoustical requirements for the sound barrier wall: constructed from a material with a minimum acoustical rating of STC 22 or a mass no less than 2 pounds per square foot. An example of a suitable material would be overlapping, 1” (nominal thickness) cedar or pine planks, assembled so the total, actual thickness of the wall is at least 1 -1/2” along the entire length of the wall. These need to be screwed together so the natural warping over time odes not cause the planks to pull apart and create gaps; the wall must be constructed tight to the ground and must be inspected, maintained, and upkept over time. Post-construction sound testing will be required to confirm the barrier was built to the recommendations specified. Other operational requirements include installation of a muffler on the vacuum pump house and the blowers set to turn off when the exit doors open. 14. Neighborhood Notification As required, neighborhood notification of t he site plan review applications have been provided to property 14 Item 2. Page 7 owners within 350 feet of the subject property and that list of property owners is attached . At the time of this report, City Staff has received 14 written comments and one verbal phone call from a resident as well as a few in-person visits; 6 of the written comments are from residents within the mailing radius. Linda Rogers at 1057 Polk Place provided the written comment attached as she is opposed to the proposed site plan citing concerns with the existing traffic increases from Aldi, additional cars entering and exiting the car wash, and noise from both the car wash and vacuum operations. Dana Alexon at 1035 Lincoln Terrace provided the written comments attached and had initial comments on traffic increasing, how the existing area handles traffic, and concerns over the sight lines considering the vehicle queuing and topography. Other remarks were made on the traffic lights and traffic lane arrangement at 50th and Central regarding marking, striping, and signage that is not being maintained, used incorrectly, and the signal timing is not effective enough to give adequate time for certain turns and contributes to risky decision - making by drivers. An additional written comment identified more specific concerns such as sight lines on the hill serving nearby residential streets, room for potential expansion in the future, employee parking, and other concerns related to overflow and queuing access onto adjacent streets. Steve and Janine Ess at 5030 Mulcare Drive provided the written comment attached as they are concerned about the heavy traffic trying to get onto Central Avenue and 50 th Avenue NE from the existing businesses. Samantha Koshiol at 1240 Lincoln Terrace provided the written comment attached as she is opposed to the proposed site plan and has concerns that the intersection cannot currently support the existing vehicle traffic from the businesses and school traffic along with concerns about noise. Garedew Ergette at 5000 Fillmore Street NE provided the written comment attached as they have concerns about the intersection and traffic from the existing businesses such as ALDI, Heights Bakery, Jimmy John’s, safety concerns for multi-modal transportation users citing the lack of sidewalks, traffic backup, and concerns over the impact on property values and noise/emissions. Carrie Gille at 3956 Reservoir Boulevard provided the written comment attached as she has concerns about noise, pollution, traffic and safety for school children, and light pollution as she states that there are traffic issues on Central Avenue already. Bob and Sue Koponen at 1035 Polk Place provided the written comment attached as they are opposed to the proposed site plan with specific concerns about the sound pollution from the car wash, vacuums, and the effectiveness of the sound barrier wall as well as concerns with the exterior lighting spilling over into their back yard and traffic at the intersection at 50th Avenue NE and Central Avenue. Tom and Cathy Kehrwald at 1060 50th Avenue NE provided the written comments attached as they are opposed to the proposed site plan with concerns over safety in regards to a lack of sidewalk facilities and concerns over the sidewalk being maintained during the winter as well as traffic concerns on Central Avenue and 50th Avenue NE. Other concerns identified are noise and light pollution impacts. Tyler Whitney at 4922 Tyler Street NE provided the written comment attached as he is concerned about the additional traffic that will be generated by the business and worries about the through traffic and the effect that would have on families with small children as well as feedback on the possibility of a sound barrier wall facing Tyler Street NE on the south side of the proposed car wash noting that the sound barrier wall on another 15 Item 2. Page 8 property is in disrepair and does not deter noise pollution. Gerri Moeller at 5000 Johnson Street NE provided the written comme nt attached as she is concerned about the traffic and safety needs of the neighborhood and that the intersection cannot handle additional traffic. Jennifer and Dirk DeWester at 1200 50th Avenue NE provided the written comment attached as they are opposed to the proposed site plan and cited concerns regarding additional traffic and sight lines over the hill as well as concern in relation to noise pollution from the Speedway Gas Station and how the sound affects properties surrounding them. Joe Pagliolo and Margaret Hare at 1180 50th Avenue NE provided the written comment attached as they are opposed to the proposed site plan and cited concerns regarding the existing traffic congestion from surrounding businesses. Mark Colombo at 1105 50th Avenue NE provided the written comment attached as he is opposed to the proposed site plan and has concerns about the traffic intersection congestion from existing businesses with issues identified with the turn lane and additional traffic during the school year. Ardell and Jon Schmidt at 1105 Polk Place provided the written comment attached as they are opposed to the proposed site plan and has concerns about water from the cars dripping and causing icy slopes, traffic and safety from the existing businesses causing backups, and the safety of pedestrians. Nancy Sartor at 1498 Lincoln Terrace provided the written comment attached as they are opposed to the proposed site plan and has concerns about the traffic, safety, noise, and exhaust pollution. 15. Staff Review The Public Works Department, Police Department, and Fire Department have been provided copies of the application materials. The Police Department was satisfied with the proposed site plan and had no concerns. The Fire Department had a few comments regardin g the fire lane, keybox, and other fire related items that are conditions of approval. In review of the application materials, Public Works/Engineering provided their department’s requirements and comments on the proposed site plan in a memo dated August 22, 2024. General comments and requirements are in the memo attached to this report and are referenced in the site plan approval language as conditions of approval. FINDINGS OF FACT Section 9.104 (N) of the Zoning Ordinance outlines certain findings of fact that must be met in order for the City to approve a site plan review. The findings are as follows: (a) The site plan conforms to all applicable requirements of this article. Upon approval of the Site Plan Review, as conditioned, the proposed site plan will conform to all applicable requirements of the General Business (GB) District as well as City Code 9.106 General Development Standards. 16 Item 2. Page 9 (b) The site plan is consistent with the applicable provisions of the City’s comprehensive plan. The use and site plan is consistent with the applicable provisions of the City’s comprehensive plan . (c) The site plan is consistent with any applicable area plan. With conditions imposed to ensure compatibility, the site plan will be consistent with the applicable Design Guidelines of the Highway District. (d) The site plan minimizes any adverse impacts on property in the immediate vicinity and the public right-of-way. As conditioned, the site plan minimizes any adverse impacts on property in the immediate vicinity and the public right-of-way. RECOMMENDATION Staff recommends the following to the Planning Commission: A. Approval of the Site Plan Review for property located at 999 50th Avenue NE (PID: 25-30-24-23-0002) subject to the following conditions: 1. The building and site plans adhere to the building and site plans dated A ugust 5, 2024 as conditioned. 2. Contingent upon successful application for a Conditional Use Permit for an over-height sound barrier that is intended to be heard at the City Council meeting on October 14, 2024. An eight (8’) foot tall sound barrier is required to be constructed in the manner specified in the Noise Impact Study dated August 23, 2024 with a minimum acoustical rating of STC 22 or a mass no less than 2 pounds per square foot, the panels screwed together so there is an overlapping, 1” (nominal thickness) assembled so that the total actual thickness of the wall is at least 1-1/2” along the entire length of the wall. 3. The applicant shall adhere to the requirements and comments provided by the City Public Works and Engineering Departments in a memo dated August 22, 2024. The applicant is responsible for filing and recording any proposed easements with Anoka County Recorder’s Office. 4. Two parking spaces for employees shall be identified and an on-site area shall be designated for snow storage and if snowfall exceeds the storage of that area, then it shall be required to be removed from the property. 5. Relocate one of the SCM-LED-08L-SC-40 lighting fixtures so there is no more than 0.5 footcandles along the eastern property line. 6. The applicant shall be responsible for conducting routine inspections to ensure that the sound barrier wall/fence is maintained and upkept. 17 Item 2. Page 10 7. Post-construction sound testing is required to demonstrate compliance with the recommendations made in the Noise Impact Study. 8. The applicant is required to maintain a 24 foot fire lane and shall be stripped with “No Parking – Fire Lane”. 9. The vacuums are required to be setback of 50 feet from residential property lines and/or be enclosed. Vacuum use shall be limited to the hours of operation, 7AM – 8PM, Monday – Sunday, and a muffler installed on the vacuum pump house as well as setting the blowers in the car wash to turn off whenever the exit doors open. 10. The open side of the enclosure shall not face any public street or the front yard of any adjacent property. 11. A letter of credit or other security as acceptable to the City and shall be deposited with the Zoning Administrator, in an amount equal to 100% of the estimated cost of landscaping and/or screening. The letter of credit or other security as acceptable to the City, or portions thereof, shall be forfeited to maintain and/or replace materials for a period of time to include at least two growing seasons. A portion of the letter of credit or other security as acceptable may be released after one growing season as determined by the Zoning Administrator. The property owner shall be responsible for continued maintenance of landscaping and screening materials to remain in compliance with the requirements of this section. Plant materials that show signs of disease or damage shall be promptly removed and replaced within the next planting season. 12. All rooftop or mechanical equipment shall be screened in a manner that minimizes the visual impact on adjacent properties and from public streets as a condition of approval. 13. The building and site shall be meet all requirements found in the Fire Code and the Building Code. 14. All new site signage shall require sign permits. 15. Provide a bicycle rack capable of accommodating two-four bicycles. 16. The applicant is required to receive final approval by the Fire Department or Authority Having Jurisdiction for the location of the keybox, fire alarm panel, fire annunciator, and FDC connection. 17. All required state and local codes, permits, licenses, and inspections will be met and in full compliance. RECOMMENDED MOTION(S): MOTION: Move to waive the reading of draft Resolution No. 2024 -069, a Site Plan Review for 999 50th Avenue NE, there being ample copies available to the public. 18 Item 2. Page 11 MOTION: Move to recommend the Planning Commission approve draft Resolution No. 2024-069, a Site Plan Review for 999 50th Avenue NE, as presented and subject to the conditions of approval listed in the draft resolution. ATTACHMENT(S): Draft Resolution Application Narrative Plan Set Fence Specifications Noise Impact Study Traffic Study Truck Turning Diagram Notice of Public Hearing to Newspaper Notice of Public Hearing to Neighborhood Mailing List Written Public Comments 19 Item 2. RESOLUTION NO. 2024-069 A resolution of the Planning Commission for the City of Columbia Heights, Minnesota, recommending approval of a Site Plan Review for property located at 999 50th Avenue NE in the City of Columbia Heights, MN; Whereas, a proposal (Planning Case # 2024-0904) has been submitted by Civil Site Group on behalf of Tsunami Express Car Wash to the Planning Commission requesting approval of a Site Plan Review at the following location: ADDRESS: 999 50th Avenue NE LEGAL DESCRIPTION: (999 50th Avenue NE) THAT PART OF LOTS 8 & 9 AUDITORS SUBDIVISION NO 153 LYG ELY & SLY OF ALDI ADDITION, WLY OF MATHAIRE ADDITION & NELY OF 50TH AVE NE THE APPLICANT SEEKS THE FOLLOWING: 1. Approval of a Site Plan Review for a new construction drive-through car wash on a 0.83 acre parcel in accordance with City Code Section 9.104 (N). Whereas, the Planning Commission held a public hearing as required by the City Zoning Code on October 1, 2024; Whereas, the Planning Commission has considered the advice and recommendations of the Planning Commission regarding the effect of the proposed site plan upon the health, safety, and welfare of the community and its Comprehensive Plan, as well as any concern related to traffic, property values, light, air, danger of fire, and risk to public safety, in the surrounding area; Now, therefore, in accordance with the foregoing, and all ordinances and regulations of the City of Columbia Heights, the City of Columbia Heights Planning Commission makes the following: FINDINGS OF FACT 1. The site plan conforms to all applicable requirements of this article. 2. The site plan is consistent with the applicable provisions of the City’s comprehensive plan. 3. The site plan is consistent with any applicable area plan. 4. The site plan minimizes any adverse impacts on property in the immediate vicinity and the public right-of-way. 20 Item 2. CONDITIONS 1. The building and site plans adhere to the building and site plans dated August 5, 2024 as conditioned. 2. Contingent upon successful application for a Conditional Use Permit for an over - height sound barrier that is intended to be heard at the City Council meeting on October 14, 2024. An eight (8’) foot tall sound barrier is required to be constructed in the manner specified in the Noise Impact Study dated August 23, 2024 with a minimum acoustical rating of STC 22 or a mass no less than 2 pounds per square foot, the panels screwed together so there is an overlapping, 1” (nominal thickness) assembled so that the total actual thickness of the wall is at least 1-1/2” along the entire length of the wall. 3. The applicant shall adhere to the requirements and comments provided by the City Public Works and Engineering Departments in a memo dated August 22, 2024. The applicant is responsible for filing and recording any proposed easements with Anoka County Recorder’s Office. 4. Two parking spaces for employees shall be identified and an on-site area shall be designated for snow storage and if snowfall exceeds the storage of that area, then it shall be required to be removed from the property. 5. Relocate one of the SCM-LED-08L-SC-40 lighting fixtures so there is no more than 0.5 footcandles along the eastern property line. 6. The applicant shall be responsible for conducting routine inspections to ensure that the sound barrier wall/fence is maintained and upkept. 7. Post-construction sound testing is required to demonstrate compliance with the recommendations made in the Noise Impact Study. 8. The applicant is required to maintain a 24 foot fire lane and shall be stripped with “No Parking – Fire Lane”. 9. The vacuums are required to be setback of 50 feet from residential property lines and/or be enclosed. Vacuum use shall be limited to the hours of operation, 7AM – 8PM, Monday – Sunday, and a muffler installed on the vacuum pump house as well as setting the blowers in the car wash to turn off whenever the exit doors open. 10. The open side of the enclosure shall not face any public street or the front yard of any adjacent property. 21 Item 2. 11. A letter of credit or other security as acceptable to the City and shall be deposited with the Zoning Administrator, in an amount equal to 100% of the estimated cost of landscaping and/or screening. The letter of credit or other security as acceptable to the City, or portions thereof, shall be forfeited to maintain and/or replace materials for a period of time to include at least two growing seasons. A portion of the letter of credit or other security as acceptable may be released after one growing season as determined by the Zoning Administrator. The property owner shall be responsible for continued maintenance of landscaping and screening materials to remain in compliance with the requirements of this section. Plant materials that show signs of disease or damage shall be promptly removed and replaced within the next planting season. 12. All rooftop or mechanical equipment shall be screened in a manner that minimizes the visual impact on adjacent properties and from public streets as a condition of approval. 13. The building and site shall be meet all requirements found in the Fire Code and the Building Code. 14. All new site signage shall require sign permits. 15. Provide a bicycle rack capable of accommodating two-four bicycles. 16. The applicant is required to receive final approval by the Fire Department or Authority Having Jurisdiction for the location of the keybox, fire alarm panel, fire annunciator, and FDC connection. 17. All required state and local codes, permits, licenses, and inspections will be met and in full compliance. 22 Item 2. Passed this 1st day of October, 2024 Offered by: Seconded by: Roll Call: Clara Wolfe, Chair Attest: Andrew Boucher, City Planner 23 Item 2. 24 Item 2. 25 Item 2. 26 Item 2. 27 Item 2. 28 Item 2. Page 1 of 2 Community Development Department 590 40th Ave. NE, Columbia Heights, MN 55421 SITE PLAN APPLICATION (UNDER 1 ACRE) ORDINANCE NO. 9.104 (N) This application is subject to review and acceptance by the City. Applications will be processed only if all required items are submitted. PROPERTY INFORMATION Proposed name of development: ____________________________________________________________________ Project Address/Location: _________________________________________________________________________ Legal Description of property involved: _______________________________________________________________ _______________________________________________________________________________________________ Present use of property ___________________________________________________________________________ Proposed use of property __________________________________________________________________________ _______________________________________________________________________________________________ PROPERTY OWNER (As it appears on property title): Name: _________________________________________________________________________________________ Mailing Address: ________________________________________________________________________________ City: ______________________________ State: ____________ Zip: _________________ Daytime Phone: __________________________ Cell Phone: __________________________________ E-mail Address: _________________________________________________________________________________ Signature/Date: _________________________________________________________________________________ APPLICANT: Company Name (please print): ______________________________________________________________________ Contact Person (please print): ______________________________________________________________________ Mailing Address: _____________________________________________________________________________ City: ______________________________ State:_____________ Zip: _________________ Daytime Phone: __________________________ Cell Phone: __________________________________ Email Address: ______________________________________________________________________________ Signature/Date: _____________________________________________________________________________ Disclaimer: Information submitted, including contact information shall be made available to the public, unless otherwise noted. 07/31/2024 blake.ketner@tsunamiexpress.com 29 Item 2. REASON FOR REQUEST (please attach a written narrative describing your proposal, the intended use of the property and justification for your request.) FOR OFFICE USE ONLY CASE NO: _______________________ APPLICATION REC’D BY: ________________________ DATE APPL ICATION REC’D: _______________ $500 APPLICATION FEE REC’D: _____________________ RECEIPT NUMBER: ____________________ 30 Item 2. Legal Description of Property That part of Lots 8 and 9, Auditor's Subdivision No. 153, in the Northwest 1/4 of Section 25, Township 30, Range 24, described as follows: Commencing at the Southwest corner of the Northwest 1/4 of said Section 25; thence Northerly along the West line of said Northwest 1/4 a distance of 710.00 feet; thence Easterly, deflecting 90 degrees 06 minutes, 32 seconds to the right, a distance of 140.06 feet; thence 90.16 feet along a tangential curve to the right having a radius of 766.35 feet, to the East line of the West 230.00 feet of said Northwest 1/4, being the actual point of beginning of the parcel of land to be described; thence continuing Easterly along said curve a distance of 223.58 feet to the East line of the West 445.00 feet of said Northwest 1/4; thence Northerly along the East line of the West 445.00 feet of the Northwest 1/4 a distance of 203.56 feet more or less to the intersection of said line with a line erected Easterly from a point in the West line of said Northwest 1/4 distant 850.00 feet Northerly of the Southwest corner thereof (said line erected Easterly at an angle of 90 degrees 06 minutes 32 seconds as measured from North to East); thence Westerly along said erected line a distance of 215.00 feet to the East line of the West 230.00 feet of said Northwest 1/4; thence Southwesterly along said East line of the West 230.00 feet of the Northwest 1/4 a distance of 145.30 feet to the point of beginning, Anoka County, Minnesota. 31 Item 2. 31 July 2024 Community Development Department – City of Columbia Heights 590 40th Ave. NE Columbia Heights, MN 55421 RE: Tsunami Express Carwash – To Whom It May Concern, Tsunami Express Carwash (“Tsunami”) is proudly presenting the proposed development plans for a state-of-the-art facility that will serve Columbia Heights (the “City”) and the surrounding communities. Introduction The proposed development is located directly South of the Aldi located on Central Ave NE, and the parcel number is 25-30-24-23-0002. The property is a 0.83 acre site currently occupied by an abandoned building. The site is currently zoned as GB “General Business.” The GB zoning district allows a car wash as a permitted use. The proposed facility is a single-story 4,300 SF building including the car wash bay, mechanical room, storage, office, and restroom. Accessory buildings include a 100 SF employee sales booth, 100 SF vacuum pump house, and dumpster enclosure. Business Operations Tsunami Express Carwash (“Tsunami”) is a high-quality express car wash that uses state-of- the-art equipment and provides customers with a wide variety of services. For washes, Tsunami offers several levels of memberships, or customers can pay for a single wash at every visit. The wash cycles are offered at varying price points to suit the needs of each customer. The site will house 10 vacuums to serve 18 parking stalls. These stalls will be 13’-0” wide and 18’-0” deep. This is wider than the average parking stall to allow for more maneuverability around the vehicle. The vacuums will be available to customers for free regardless of whether they go through the wash. The free vacuums will only be available for use during regular business hours. In addition to regular business operations, Tsunami also fosters community connections and is an advocate for supporting local organizations. They offer an opportunity to host fundraisers, giving a modern spin on the famous “community car wash” that was once a popular method of raising funds for various community organizations. Supporters of the organizations will receive a high-quality car wash, and the organization receives 50% of the proceeds from every wash donated back to them. Regular business hours extend from 7:00 am to 8:00 pm daily. There will be attendants on duty for the full duration of the operating hours to assist customers and maintain the cleanliness of the site. Each shift will employ 2-3 employees with a total staff of approximately 8-10 employees. During these hours, Tsunami expects to service 200-400 customers per day. 32 Item 2. Tsunami currently has five (5) facilities in the Milwaukee area including: Oak Creek, Greenfield, Waukesha, on Fond du Lac Avenue. They are excited to expand into and invest in the communities in Minnesota. Entitlement Strategy & Timeline Tsunami will comply with the local approval process by submitting a Site Plan Application for Plan Commission consideration. They anticipate receiving municipal approvals in Fall of 2024 with single-phase construction beginning in the Spring of 2025 thereafter. The facility is anticipated to be open and operational in early Fall of 2025. Site Plan The site is arranged such that the main car wash building is located on the north side of the site and is oriented to be parallel to 50th Ave NE. Tsunami strives to place themselves in areas that make access to their services convenient, allowing their customers to easily incorporate a car wash into their weekly errands. - Layout: The plan shows (20) parking stalls with (2) being dedicated ADA spaces. The entrance to the wash includes (2) pay stations that allow space for the stacking of up to (8) vehicles – (4) per lane. - Vacuum Design & Placement: The vacuums are aligned along both sides of the parking lot with one vacuum post serving two parking stalls. Each vacuum has (2) hoses that are attached to a central vacuum system that routes to either the main building or the detached pump house at the southeast corner of the site. Each vacuum station is also equipped with a trash bin, a mat clip for easy vacuuming, and a central blower system to help clean those hard-to-reach places. - Landscaping/Screening: There is ample landscaping throughout the site that has been designed by a professional landscape architect. The dumpster is screened by an enclosure constructed of materials that match the main building, and the pump house is a fully-enclosed secondary building also constructed of similar materials. There is a retaining wall along the East property line, and the site sits 5 feet lower than the residential property to the east. There will be a fence installed at the top of the retaining wall to provide visual screening and safety. - Access: There are two entrances to the site. The curb cut located on the east end of the site allows customers to access the pay stations to enter the wash tunnel. After exiting the wash tunnel, vehicles can continue on straight to exit the site or turn left to access the free vacuums. The curb cut on the west end of the site allows vehicles to exit the site and/or access the free vacuums without going through the wash tunnel - Signage: A full signage package complying with all code standards will be submitted for approval. There will be signage on the building as well as one monument sign on the west end of the site directly east of the site access lane. - Lighting: The proposed lighting plan includes general pole lighting, wall packs, and canopy lighting that provide an average illumination of 2.0 footcandles. Architecture The design of the building consists of beige split-faced concrete block, gray masonry, clear anodized aluminum storefront windows, and a blue standing seam metal roof. The long façade 33 Item 2. is broken up with brick accent piers. The windows located in the mechanical room will be spandrel glazing. The main structure of the building consists of structural CMU walls, precast hollow core planks for the roof of the wash tunnel, steel joists and metal deck for the roof of the mechanical/support rooms and poured-in-place concrete foundation walls. The tunnel contains dual overhead doors at both the entrance and the exit. The interior door will be insulated metal with vision lites to provide thermal protection and security during non- operational hours; the exterior overhead door will be vinyl roll-up doors that will correspond with Tsunami’s blue and yellow branding. These vinyl doors are intended to provide protection from the elements in the winter months when the metal doors are open. Conclusion Tsunami Express Carwash is excited for the opportunity to submit their state-of-the-art facility to the Plan Commission to be considered for this site. They will prove to be a valuable addition to the Columbia Heights community. Documents Accompanying this narrative are all the documents required for the City to review and consider the project for approval. Also included are supplemental documents that provide additional information that may be of use to the Plan Commission while reviewing our submittal. These supplemental documents include: • Exhibit 1: Lighting Cut Sheets Specific information on all proposed lighting fixtures to supplement the site photometric plan. (Included in digital submittal only to conserve paper.) • Exhibit 2: Reclaim System & Equipment Information regarding the reclaim system and equipment. Other documents are available upon request. These documents include a geotechnical survey and safety data sheets for all chemicals used for operations. A sound study is planned be conducted for this site specifically to show the car wash’s noise impact on the adjacent properties. The final report will be available and shared with the city as soon as it is received. Please do not hesitate to contact us with any additional questions. Sincerely, Miranda R. Seals, AIA, NCARB Architect The Redmond Company 34 Item 2. C=22 2 . 8 0 CB=S 7 4 ° 5 9 ' 1 6 " E R=76 6 . 3 5 Δ=16 ° 4 3 ' 0 1 " 223.5 8 S0 0 ° 1 1 ' 4 5 " E 1 4 5 . 3 0 S89°54'47"W 215.00 N0 0 ° 1 1 ' 4 5 " W 2 0 3 . 3 4 (D E S C . = 2 0 3 . 5 6 ) Concrete Walkway Concrete Walkway Concrete Concrete Walkway Concrete Walkway Co n c r e t e W a l k w a y Concrete Steps Concrete StepsConcrete Steps Concrete Steps Concrete S i d e w a l k Access Bituminous Parking Lot Bituminous Parking Lot Stone Retaining Wall Brick Wall Stone Retaining Wall Concrete Retaining Wall Concrete Retaining Wall Bituminous Parking Lot Concrete Retaining Wall Iron Fence Iron Fence Monument Sign Railing Railing 2 Story Brick Building Foundation Area = 6,341 +/- Sq. Ft. Chain Link Fence [A] Chain Link Fence Crosses Property line Existing Building 12" HDPE 1 2 " H D P E Overhang 38.1 7. 9 18.6 4.1 6.8 4 . 2 6.7 4 . 2 4.9 72 . 0 27.0 10 . 9 4.26.8 4 . 2 6.7 4.341.9 5.3 35 . 6 11.0 29 . 6 8" Sa n i t a r y 8" Sanitary (Per Rec.) 8" S a n i t a r y ( P e r R e c . ) 10" WM (Per Rec.) 10" W M ( P e r R e c . ) 10 " W M ( P e r R e c . ) 6" W M ( P e r R e c . ) Wa t . S e r v . (A Pu b l i c R / W ) 50TH A V E N U E N E P.O.B. Found 1/2 Inch Open Iron Pipe Found 1/2 Inch Iron Pipe W/ Cap No. 5065 Found 1/2 Inch Iron Pipe W/ Cap No. 5065 PID: 25-30-24-23-0002 Address: 999 50th Avenue NE PID: 25-30-24-23-0107 Address: 5025 Central Avenue NE Owner: ALDI INC (Minnesota) PID: 25-30-24-23-0029 Address: 1007 50th Avenue NE Owner: Olson Dean M Etal PID: 25-30-24-23-0028 Address: 1035 Polk PL NE Owner: Koponen Trustee, Robert H PID: 25-30-24-23-0027 Address: 1043 Polk PL NE Owner: Sturdevant Joseph A PID: 25-30-24-23-0026 Address: 1051 Polk PL NE Owner: Sanchez Lopez Cristobal 5 11 1 11 18 The SW Corner of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The W Line of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 71 0 . 0 0 85 0 . 0 0 140.06 R=766.35 90.16 The E Line of the W 230 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The E Line of the W 445 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The Intersection of a Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 12" PVC 4" DT 12" PVC (Per Rec.) 12" PVC (A P u b l i c R / W ) CE N T R A L A V E N U E N E ( M N H W Y N O . 6 5 ) A Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 DESCRIPTION OF PROPERTY SURVEYED That part of Lots 8 and 9, Auditor's Subdivision No. 153, in the Northwest 1/4 of Section 25, Township 30, Range 24, described as follows: Commencing at the Southwest corner of the Northwest 1/4 of said Section 25; thence Northerly along the West line of said Northwest 1/4 a distance of 710.00 feet; thence Easterly, deflecting 90 degrees 06 minutes, 32 seconds to the right, a distance of 140.06 feet; thence 90.16 feet along a tangential curve to the right having a radius of 766.35 feet, to the East line of the West 230.00 feet of said Northwest 1/4, being the actual point of beginning of the parcel of land to be described; thence continuing Easterly along said curve a distance of 223.58 feet to the East line of the West 445.00 feet of said Northwest 1/4; thence Northerly along the East line of the West 445.00 feet of the Northwest 1/4 a distance of 203.56 feet more or less to the intersection of said line with a line erected Easterly from a point in the West line of said Northwest 1/4 distant 850.00 feet Northerly of the Southwest corner thereof (said line erected Easterly at an angle of 90 degrees 06 minutes 32 seconds as measured from North to East); thence Westerly along said erected line a distance of 215.00 feet to the East line of the West 230.00 feet of said Northwest 1/4; thence Southwesterly along said East line of the West 230.00 feet of the Northwest 1/4 a distance of 145.30 feet to the point of beginning, Anoka County, Minnesota. Abstract Property GENERAL SURVEY NOTES 1.Bearings are based on the Anoka County Coordinate System (1996 Adjustment). 2.Elevations are based on the NAVD 88 Datum. Site Benchmark is the top nut of the fire hydrant located on the south side of 50th Avenue NE, approximately 153 feet southwest of the southwest corner of the subject property, as shown hereon. Elevation = 931.52. 3.We have shown the location of utilities to the best of our ability based on observed evidence together with evidence from the following sources: plans obtained from utility companies, plans provided by client, markings by utility companies and other appropriate sources. We have used this information to develop a view of the underground utilities for this site. However, lacking excavation, the exact location of underground features cannot be accurately, completely and reliably depicted. Where additional or more detailed information is required, the client is advised that excavation may be necessary. Also, please note that seasonal conditions may inhibit our ability to visibly observe all the utilities located on the subject property. ALTA/NSPS LAND TITLE SURVEY NOTES (numbered per Table A) 1.Monuments placed and/or found at all major corners of the boundary of the surveyed property as shown hereon. 2.Site Address: 999 50th Avenue NE, Columbia Heights, Minnesota 55421. 3.This property is contained in Zone X (area determined to be outside the 0.2% annual chance floodplain) per Flood Insurance Rate Map, Community Panel No. 27003C0411E, effective date of December 16, 2015. 4.The Gross land area is 36,268 +/- square feet or 0.833 +/- acres. 7.(a) Exterior dimensions of buildings at ground level as shown hereon. 8.Substantial features observed in the process of conducting the fieldwork as shown hereon. Please note that seasonal conditions may inhibit our ability to visibly observed all site features located on the subject property. 9.The number of striped parking stalls on this site are as follows: 46 Regular + 0 Handicap = 46 Total Parking Stalls. 13.The names of the adjoining owners of the platted lands, as shown hereon, are based on information obtained from the Anoka County Interactive Property Map. SURVEY REPORT 1.This map and report was prepared with the benefit of a Commitment for Title Insurance issued by Prestige Commercial Title as agent for Commonwealth Land Title Insurance Company, File No. 240545308, dated May 6, 2024. We note the following with regards to Schedule B II Exceptions of the herein referenced Title Commitment: a. Item no.'s 1-8 and 10 are not survey related. 9.All Easements, including those for utility and drainage purposes, if any, as shown on the recorded plat of Auditor's Subdivision No. 153. See plat drawing for dimension and location. The plat does not dedicate any easements within the subject property. 2.Conflicts such as (but not limited to): encroachments, protrusions, access, occupation, and easements and/or servitudes: [A]. Chain link fence crosses the east line of the subject property, as shown hereon. ALTA CERTIFICATION To: A & A Properties, LLP, a limited liability partnership; Tsunami Car Wash Intermediate Holdco, LLC; Prestige Commercial Title; and Commonwealth Land Title Insurance Company: This is to certify that this map or plat and the survey on which it is based were made in accordance with the 2021 Minimum Standard Detail Requirements for ALTA/NSPS Land Title Surveys, jointly established and adopted by ALTA and NSPS, and includes Items 1, 2, 3, 4, 7(a), 8, 9, and 13 of Table A thereof. The fieldwork was completed on 6-24-2024. Dated this 28th day of June, 2024. ________________________________________________________ Rory L. Synstelien Minnesota License No. 44565 rory@civilsitegroup.com VICINITY MAP 99 9 5 0 t h A v e n u e N E Co l u m b i a H e i g h t s , A n o k a C o u n t y , M i n n e s o t a 5 5 4 2 1 48 0 0 M e a d o w s R o a d , # 3 0 0 , L a k e O s w e g o , O r e g o n 9 7 0 3 5 Ts u n a m i E x p r e s s C a r W a s h PR O J E C T PROJECT NO.: 24289.00 COPYRIGHT 2024 CIVIL SITE GROUP INC.c REVISION SUMMARY DATE DESCRIPTION V1.0 ALTA/NSPS LAND TITLE SURVEY .. .. .. .. .. .. N 44565 RORY L. SYNSTELIEN LICENSE NO.DATE I HEREBY CERTIFY THAT THIS SURVEY, PLAN, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED LAND SURVEYOR UNDER THE LAWS OF THE STATE OF MINNESOTA. 6-28-2024 N CL I E N T civilsitegroup.com QA/QC FIELD CREW DRAWN BY REVIEWED BY UPDATED BY HS/BS DS CJ . OVERHEAD UTILITIES GASMAIN SANITARY SEWER STORM SEWER FIBER/COMM. LINE ELECTRIC LINE (RECORD) WATERMAIN ELECTRIC LINE GASMAIN (RECORD) CHAINLINK FENCE LINE Linetype & Symbol Legend CONCRETE SURFACE PAVER SURFACE BITUMINOUS SURFACE GRAVEL/LANDSCAPE SURFACE IRON FENCE LINE GUARDRAIL WATERMAIN (RECORD) SANITARY SEWER (RECORD) STORM SEWER (RECORD) FIBER/COMM. LINE (RECORD) TELEPHONE LINE (RECORD) TELEPHONE LINE SIGN SANITARY MANHOLE STORM MANHOLE CABLE TV BOX TELEPHONE MANHOLE ELECTRIC TRANSFORMER TELEPHONE BOX TRAFFIC SIGNAL GAS METER ELECTRICAL METER WATER MANHOLE WATER VALVE AIR CONDITIONER BOLLARD CATCH BASIN ELECTRIC MANHOLE GAS VALVE FLAG POLE HANDICAP SYMBOL FOUND IRON MONUMENT HYDRANT CAST IRON MONUMENT SET OR TO BE SET IRON MONUMENT FLARED END SECTION POWER POLE UTILITY MANHOLE GUY WIRE CONIFEROUS TREE DECIDUOUS TREE ROOF DRAIN SEWER CLEAN OUT FIRE CONNECTION WELL UTILITY VAULT POST INDICATOR VALVE GAS MANHOLE HAND HOLE FIBER/COMM. MANHOLE MAIL BOX FUEL TANK ELECTRICAL OUTLET SB SOIL BORING LIGHT POLE ACCESS RESTRICTION WOODEN FENCE LINE 40102001020 SCALE IN FEET 35 Item 2. COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 48776 David J. Knaeble LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MINNESOTA. 8/05/24 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R C0.0 TITLE SHEET TSUNAMI EXPRESS CAR WASH COLUMBIA HEIGHTS, MINNESOTA ISSUED FOR: CITY SUBMITTAL ALL EXISTING UTILITY LOCATIONS SHOWN ARE APPROXIMATE. CONTACT "GOPHER STATE ONE CALL" (651-454-0002 OR 800-252-1166) FOR UTILITY LOCATIONS, 48 HOURS PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL REPAIR OR REPLACE ANY UTILITIES THAT ARE DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. SHEET INDEX SHEET NUMBER SHEET TITLE C0.0 TITLE SHEET C1.0 REMOVALS PLAN C1.1 TREE PRESERVATION PLAN C2.0 SITE PLAN C3.0 GRADING PLAN C4.0 UTILITY PLAN C5.0 CIVIL DETAILS C5.1 CIVIL DETAILS C5.2 CIVIL DETAILS L1.0 LANDSCAPE PLAN L1.1 LANDSCAPE PLAN NOTES & DETAILS SW1.0 SWPPP - EXISTING CONDITIONS SW1.1 SWPPP - PROPOSED CONDITIONS SW1.2 SWPPP - DETAILS SW1.3 SWPPP - NARRATIVE PROJECT CONTACTS NAME & ADDRESS CONTACT CIVIL ENGINEER CIVIL SITE GROUP 5000 GLENWOOD AVE GOLDEN VALLEY, MN 55422 DAVID KNABLE 612-615-0060 DKNABLE@CIVILSITEGROUP.COM LANDSCAPE ARCHITECT CIVIL SITE GROUP 5000 GLENWOOD AVE GOLDEN VALLEY, MN 55422 ROB BINDER 612-615-0060 RBINDER@CIVILSITEGROUP.COM DEVELOPER TSUNAMI EXPRESS CAR WASH, LLC. 4800 MEADOWS ROAD, SUITE 300 LAKE OSWEGO, OR 97035 CHRIS SCHULDT 920-744-9882 CHRIS@TSUNAMIEXPRESS.COM PROPERTY OWNER ARCHITECT THE REDMOND COMPANY W228 N745 WESTMOUND DRIVE WAUKESHA, WI 53186 MIRANDA SEALS 262-549-9600 MSEALS@THEREDMONDCO.COM SURVEYOR CIVIL SITE GROUP 5000 GLENWOOD AVE GOLDEN VALLEY, MN 55422 RORY SYNSTELIEN 612-615-0060 X 712 RORY@CIVILSITEGROUP.COM GEOTECHNICAL ENGINEER TBD TBD REVISION SUMMARY DATE DESCRIPTION Know what's below. before you dig.Call R TSUNAMI EXPRESS CAR WASH, LLC. 4800 MEADOWS ROAD, SUITE 300 LAKE OSWEGO, OR 97305 CHRIS SCHULDT 920-744-9882 CHRIS@TSUNAMIEXPRESS.COM SITE LOCATIONSITE LOCATION MAP N ALL PROJECT WORK SHALL CONFORM TO THE CITY OF COLUMBIA HEIGHTS STANDARD SPECIFICATIONS, CITY ENGINEERS ASSOCIATION OF MINNESOTA (CEAM) "STANDARD UTILITY SPECIFICATIONS" CURRENT EDITION, AND MINNESOTA DEPARTMENT OF TRANSPORTATION (MNDOT) "STANDARD SPECIFICATIONS FOR CONSTRUCTION" CURRENT EDITION IN THAT ORDER. IMMEDIATELY NOTIFY ENGINEER FOR CLARIFICATION PRIOR TO CONSTRUCTION. 36 Item 2. CONSTRUCTION LIMITS C=22 2 . 8 0 CB=S 7 4 ° 5 9 ' 1 6 " E R=76 6 . 3 5 Δ=16 ° 4 3 ' 0 1 " 223.5 8 S0 0 ° 1 1 ' 4 5 " E 1 4 5 . 3 0 S89°54'47"W 215.00 N0 0 ° 1 1 ' 4 5 " W 2 0 3 . 3 4 (D E S C . = 2 0 3 . 5 6 ) Concrete Walkway Concrete Walkway Concrete Concrete Walkway Concrete Walkway Co n c r e t e W a l k w a y Concrete Steps Concrete StepsConcrete Steps Concrete Steps Concrete S i d e w a l k Access Bituminous Parking Lot Bituminous Parking Lot Stone Retaining Wall Brick Wall Stone Retaining Wall Concrete Retaining Wall Concrete Retaining Wall Bituminous Parking Lot Concrete Retaining Wall Iron Fence Iron Fence Monument Sign Railing Railing 2 Story Brick Building Foundation Area = 6,341 +/- Sq. Ft. Chain Link Fence [A] Chain Link Fence Crosses Property line Existing Building 12" HDPE 1 2 " H D P E Overhang 38.1 7. 9 18.6 4 . 1 6.8 4 . 2 6.7 4 . 2 4.9 72 . 0 27.0 10 . 9 4 . 2 6.8 4 . 2 6.7 4 . 3 41.9 5 . 3 35 . 6 11.0 29 . 6 8" Sa n i t a r y 8" Sanitary (Per Rec.) 8" S a n i t a r y ( P e r R e c . ) 10" WM (Per Rec.) 10" W M ( P e r R e c . ) 10 " W M ( P e r R e c . ) 6" W M ( P e r R e c . ) Wa t . S e r v . (A Pu b l i c R / W ) 50TH A V E N U E N E P.O.B. Found 1/2 Inch Open Iron Pipe Found 1/2 Inch Iron Pipe W/ Cap No. 5065 Found 1/2 Inch Iron Pipe W/ Cap No. 5065 PID: 25-30-24-23-0002 Address: 999 50th Avenue NE PID: 25-30-24-23-0107 Address: 5025 Central Avenue NE Owner: ALDI INC (Minnesota) PID: 25-30-24-23-0029 Address: 1007 50th Avenue NE Owner: Olson Dean M Etal PID: 25-30-24-23-0028 Address: 1035 Polk PL NE Owner: Koponen Trustee, Robert H PID: 25-30-24-23-0027 Address: 1043 Polk PL NE Owner: Sturdevant Joseph A PID: 25-30-24-23-0026 Address: 1051 Polk PL NE Owner: Sanchez Lopez Cristobal 5 11 1 11 18 R=766.35 90.16 The E Line of the W 230 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The E Line of the W 445 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The Intersection of a Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 12" PVC 4" DT 12" PVC (Per Rec.) 12" PVC A Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 EXISTING TREES TO REMAIN, PROVIDE TREE PROTECTION FENCING, TYP. REMOVE EXISTING TREE AND ROOTS, TYP. REMOVE EXISTING PAVEMENT AND BASE MATERIAL, TYP. REMOVE EX BUILDING, STRUCTURES, FOUNDATIONS, FOOTINGS & BASE MATERIALS, PER LOCAL STATE & FEDERAL STANDARDS. REMOVE/DISCONNECT ALL SERVICES & UTILITIES PER UTILITY COMPANY AND/OR L.G.U. STANDARDS REMOVE ALL EXISTING TREES & VEGETATION ON SITE. REMOVE ALL STUMPS & ROOT SYSTEMS. COORDINATE PROPER DISPOSAL OF MATERIALS WITH L.G.U. REMOVE EXISTING STORMWATER SERVICES PER CITY STANDARDS, COORD. W/ UTILITY CO. REMOVE EXISTING STORMWATER SERVICES PER CITY STANDARDS, COORD. W/ UTILITY CO. REMOVE EXISTING STORMWATER SERVICES PER CITY STANDARDS, COORD. W/ UTILITY CO. REMOVE EXISTING LIGHT POLE, TYP. REMOVE EXISTING LIGHT POLE, TYP. REMOVE EXISTING ELECTRICAL SERVICES PER CITY STANDARDS, COORD. W/ UTILITY CO. REMOVE EXISTING GAS SERVICES PER CITY STANDARDS, COORD. W/ UTILITY CO. REMOVE RETAINING WALL AND ALL BASE MATERIALS REMOVE EXISTING BUILDING SIGN PROTECT EXISTING STREET SIGN, REMOVE AND SAVE IF NECESSARY REMOVE ALL EXISTING PRIVATE UTILITY SERVICES (THAT ARE NOT TO BE REUSED) PER PRIVATE UTILITY COMPANY AND CITY STANDARDS CONTRACTOR SHALL SAWCUT & REMOVE PUBLIC PVMTS., CURBS, AND WALKS FOR INSTALLATION OF UTILITIES. UPON COMPLETION OF UTILITY WORK, REPLACE ALL MATERIAL, IN KIND, AND TO CITY STANDARD AND APPROVAL SAWCUT & REMOVE EXISTING PAVEMENT. COORD. W/ SITE PLAN FOR REPAIR AND/OR REPLACEMENT, TYP. TYPICALLY 2' WIDTH ALONG CURB SAWCUT & REMOVE EXISTING PAVEMENT. COORD. W/ SITE PLAN FOR REPAIR AND/OR REPLACEMENT, TYP. TYPICALLY 2' WIDTH ALONG CURB REMOVE EXISTING CURB AND GUTTER, TYP. PROTECT EXISTING SIDEWALK REMOVE EXISTING WATER SERVICE, REMOVE BACK TO THE MAIN PER CITY STANDARDS, LOCATION IS APPROXIMATE, CONTRACTOR TO FIELD VERIFY WORK WITH FIBER OPTICS COMPANY TO RELOCATE PROTECT GAS VALVE REMOVE EXISTING ELECTRICAL SERVICES PER CITY STANDARDS, COORD. W/ UTILITY CO. REMOVE EXISTING LIGHT POLE, TYP. REMOVE ALL VEGETATION INSIDE CONSTRUCTION LIMITS AS NECESSARY, INCLUDING STUMPS AND ROOT SYSTEMS. EXISTING RETAINING WALL TO REMAIN, PROTECT DURING CONSTRUCITON REMOVALS PLAN LEGEND: TREE PROTECTION REMOVAL OF PAVEMENT AND ALL BASE MATERIAL, INCLUDING BIT., CONC., AND GRAVEL PVMTS. REMOVAL OF STRUCTURE INCLUDING ALL FOOTINGS AND FOUNDATIONS. TREE REMOVAL - INCLUDING ROOTS AND STUMPS COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 48776 David J. Knaeble LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MINNESOTA. 8/05/24 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R C1.0 REMOVALS PLAN REMOVE CURB AND GUTTER. IF IN RIGHT-OF-WAY, COORDINATE WITH LOCAL GOVERNING UNIT. REMOVAL NOTES: CITY OF COLUMBIA HEIGHTS REMOVAL NOTES: 1.RESERVED FOR CITY SPECIFIC REMOVAL NOTES. 1.ALL EXISTING UTILITY LOCATIONS SHOWN ARE APPROXIMATE. CONTACT "GOPHER STATE ONE CALL" (651-454-0002 OR 800-252-1166) FOR UTILITY LOCATIONS, 48 HOURS PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL REPAIR OR REPLACE ANY UTILITIES THAT ARE DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. 2.SEE STORM WATER POLLUTION PREVENTION PLAN (SWPPP) PLAN FOR CONSTRUCTION STORM WATER MANAGEMENT PLAN. 3.REMOVAL OF MATERIALS NOTED ON THE DRAWINGS SHALL BE IN ACCORDANCE WITH MNDOT, STATE AND LOCAL REGULATIONS. 4.REMOVAL OF PRIVATE UTILITIES SHALL BE COORDINATED WITH UTILITY OWNER PRIOR TO CONSTRUCTION ACTIVITIES. 5.EXISTING PAVEMENTS SHALL BE SAWCUT IN LOCATIONS AS SHOWN ON THE DRAWINGS OR THE NEAREST JOINT FOR PROPOSED PAVEMENT CONNECTIONS. 6.REMOVED MATERIALS SHALL BE DISPOSED OF TO A LEGAL OFF-SITE LOCATION AND IN ACCORDANCE WITH STATE AND LOCAL REGULATIONS. 7.ABANDON, REMOVAL, CONNECTION, AND PROTECTION NOTES SHOWN ON THE DRAWINGS ARE APPROXIMATE. COORDINATE WITH PROPOSED PLANS. 8.EXISTING ON-SITE FEATURES NOT NOTED FOR REMOVAL SHALL BE PROTECTED THROUGHOUT THE DURATION OF THE CONTRACT. 9.PROPERTY LINES SHALL BE CONSIDERED GENERAL CONSTRUCTION LIMITS UNLESS OTHERWISE NOTED ON THE DRAWINGS. WORK WITHIN THE GENERAL CONSTRUCTION LIMITS SHALL INCLUDE STAGING, DEMOLITION AND CLEAN-UP OPERATIONS AS WELL AS CONSTRUCTION SHOWN ON THE DRAWINGS. 10.MINOR WORK OUTSIDE OF THE GENERAL CONSTRUCTION LIMITS SHALL BE ALLOWED AS SHOWN ON THE PLAN AND PER CITY REQUIREMENTS. FOR ANY WORK ON ADJACENT PRIVATE PROPERTY, THE CONTRACTOR SHALL OBTAIN WRITTEN PERMISSION FROM THE ADJACENT PROPERTY OWNER PRIOR TO ANY WORK. 11.DAMAGE BEYOND THE PROPERTY LIMITS CAUSED BY CONSTRUCTION ACTIVITY SHALL BE REPAIRED IN A MANNER APPROVED BY THE ENGINEER/LANDSCAPE ARCHITECT OR IN ACCORDANCE WITH THE CITY. 12.PROPOSED WORK (BUILDING AND CIVIL) SHALL NOT DISTURB EXISTING UTILITIES UNLESS OTHERWISE SHOWN ON THE DRAWINGS AND APPROVED BY THE CITY PRIOR TO CONSTRUCTION. 13.SITE SECURITY MAY BE NECESSARY AND PROVIDED IN A MANNER TO PROHIBIT VANDALISM, AND THEFT, DURING AND AFTER NORMAL WORK HOURS, THROUGHOUT THE DURATION OF THE CONTRACT. SECURITY MATERIALS SHALL BE IN ACCORDANCE WITH THE CITY. 14.VEHICULAR ACCESS TO THE SITE SHALL BE MAINTAINED FOR DELIVERY AND INSPECTION ACCESS DURING NORMAL OPERATING HOURS. AT NO POINT THROUGHOUT THE DURATION OF THE CONTRACT SHALL CIRCULATION OF ADJACENT STREETS BE BLOCKED WITHOUT APPROVAL BY THE CITY PRIOR TO CONSTRUCTION ACTIVITIES. 15.ALL TRAFFIC CONTROLS SHALL BE PROVIDED AND ESTABLISHED PER THE REQUIREMENTS OF THE MINNESOTA MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (MMUTCD) AND THE CITY. THIS SHALL INCLUDE, BUT NOT BE LIMITED TO, SIGNAGE, BARRICADES, FLASHERS, AND FLAGGERS AS NEEDED. ALL PUBLIC STREETS SHALL REMAIN OPEN TO TRAFFIC AT ALL TIMES. NO ROAD CLOSURES SHALL BE PERMITTED WITHOUT APPROVAL BY THE CITY. 16.SHORING FOR BUILDING EXCAVATION MAY BE USED AT THE DISCRETION OF THE CONTRACTOR AND AS APPROVED BY THE OWNERS REPRESENTATIVE AND THE CITY PRIOR TO CONSTRUCTION ACTIVITIES. 17.STAGING, DEMOLITION, AND CLEAN-UP AREAS SHALL BE WITHIN THE PROPERTY LIMITS AS SHOWN ON THE DRAWINGS AND MAINTAINED IN A MANNER AS REQUIRED BY THE CITY. 18.ALL EXISTING SITE TRAFFIC/REGULATORY SIGNAGE TO BE INVENTORIED AND IF REMOVED FOR CONSTRUCTION SHALL BE RETURNED TO LGU. 19.ALL EXISTING UTILITY LOCATIONS SHOWN ARE APPROXIMATE. CONTACT "GOPHER STATE ONE CALL" (651-454-0002 OR 800-252-1166) FOR UTILITY LOCATIONS, 48 HOURS PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL REPAIR OR REPLACE ANY UTILITIES THAT ARE DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. SEE SWPPP ON SHEETS SW1.0 - SW1.3 EROSION CONTROL NOTES: CONSTRUCTION LIMITS REVISION SUMMARY DATE DESCRIPTION PROPERTY LINE 0 1" = 20'-0" 20'-0"10'-0" N Know what's below. before you dig.Call R OWNER INFORMATION TSUNAMI EXPRESS CAR WASH, LLC. 4800 MEADOWS ROAD, SUITE 300 LAKE OSWEGO, OR 97305 CHRIS SCHULDT 920-744-9882 CHRIS@TSUNAMIEXPRESS.COM TREE PROTECTION N T S 25' DL DRIPLINE WIDTH FURNISH A AND INSTALL TEMPORARY FENCE AT THE TREE'S DRIP LINE OR CONSTRUCTION LIMITS AS SHOWN ON PLAN, PRIOR TO ANY CONSTRUCTION. WHERE POSSIBLE PLACE FENCE 25' BEYOND DRIP LINE. PLACE TREE PROTECTION SIGN ON POSTS, ONE PER INDIVIDUAL TREE (FACING CONSTRUCTION ACTIVITY), OR ONE EVERY 100' LF ALONG A GROVE OR MULTI-TREE PROTECTION AREA. POSTS AND FENCING EXTEND FENCE 25' BEYOND DRIPLINE WHERE POSSIBLE TREE PROTECTION SIGN, TYP. TREE DRIPLINE, OR CONSTRUCTION LIMITS 1 37 Item 2. CONSTRUCTION LIMITS C=22 2 . 8 0 CB=S 7 4 ° 5 9 ' 1 6 " E R=76 6 . 3 5 Δ=16 ° 4 3 ' 0 1 " 223.5 8 S0 0 ° 1 1 ' 4 5 " E 1 4 5 . 3 0 S89°54'47"W 215.00 N0 0 ° 1 1 ' 4 5 " W 2 0 3 . 3 4 (D E S C . = 2 0 3 . 5 6 ) Concrete Walkway Concrete Walkway Concrete Concrete Walkway Concrete Walkway Co n c r e t e W a l k w a y Concrete Steps Concrete StepsConcrete Steps Concrete Steps Concrete S i d e w a l k Access Bituminous Parking Lot Bituminous Parking Lot Stone Retaining Wall Brick Wall Stone Retaining Wall Concrete Retaining Wall Concrete Retaining Wall Bituminous Parking Lot Concrete Retaining Wall Iron Fence Iron Fence Monument Sign Railing Railing 2 Story Brick Building Foundation Area = 6,341 +/- Sq. Ft. Chain Link Fence [A] Chain Link Fence Crosses Property line Existing Building 12" HDPE 1 2 " H D P E Overhang 38.1 7. 9 18.6 4 . 1 6.8 4 . 2 6.7 4 . 2 4.9 72 . 0 27.0 10 . 9 4 . 2 6.8 4 . 2 6.7 4 . 3 41.9 5 . 3 35 . 6 11.0 29 . 6 8" Sa n i t a r y 8" Sanitary (Per Rec.) 8" S a n i t a r y ( P e r R e c . ) 10" WM (Per Rec.) 10" W M ( P e r R e c . ) 10 " W M ( P e r R e c . ) 6" W M ( P e r R e c . ) Wa t . S e r v . (A Pu b l i c R / W ) 50TH A V E N U E N E P.O.B. Found 1/2 Inch Open Iron Pipe Found 1/2 Inch Iron Pipe W/ Cap No. 5065 Found 1/2 Inch Iron Pipe W/ Cap No. 5065 PID: 25-30-24-23-0002 Address: 999 50th Avenue NE PID: 25-30-24-23-0107 Address: 5025 Central Avenue NE Owner: ALDI INC (Minnesota) PID: 25-30-24-23-0029 Address: 1007 50th Avenue NE Owner: Olson Dean M Etal PID: 25-30-24-23-0028 Address: 1035 Polk PL NE Owner: Koponen Trustee, Robert H PID: 25-30-24-23-0027 Address: 1043 Polk PL NE Owner: Sturdevant Joseph A PID: 25-30-24-23-0026 Address: 1051 Polk PL NE Owner: Sanchez Lopez Cristobal 5 11 1 11 18 R=766.35 90.16 The E Line of the W 230 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The E Line of the W 445 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The Intersection of a Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 12" PVC 4" DT 12" PVC (Per Rec.) 12" PVC A Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 EXISTING TREES TO REMAIN, PROVIDE TREE PROTECTION FENCING, TYP. REMOVE EXISTING TREE AND ROOTS, TYP. TREE PRESERVATION PLAN LEGEND: TREE PROTECTION TREE REMOVAL - INCLUDING ROOTS AND STUMPS COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 48776 David J. Knaeble LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MINNESOTA. LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED LANDSCAPE ARCHITECT UNDER THE LAWS OF THE STATE OF MINNESOTA. 25821 Robert L. Binder 8/05/24 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R C1.1 TREE PRESERVATION PLAN CONSTRUCTION LIMITS REVISION SUMMARY DATE DESCRIPTION PROPERTY LINE 0 1" = 20'-0" 20'-0"10'-0" N Know what's below. before you dig.Call R 38 Item 2. TRASH ENCLOSURE PUMP HOUSE 5' SIDE AND REAR PARKING SETBACK 20' BUILDING REAF SETBACK 15' BUILDING AND PARKING SETBACK 5' MODULAR BLOCK RETAINING WALL. WALL TO BE INSTALLED SO THAT REINFORCED BUT STAYS WITHIN PROPERTY LIMITS. SALES BOOTH CONCRETE SIDEWALK, PER CITY STANDARD NO PARKING ACCESSIBLE PARKING SPACE, INCL. SIGNAGE, STRIPING AND RAMPS PVMT. STRIPING TYP. B612 C&G, TYP. R2 5 . 0 R 1 8 . 0 R8. 0 R 3 . 0 R18.0 R75.0 R3.0 R3. 0 R 8 . 0 R5 . 0 R3. 0 R3.0 R58.0 R21 . 8 R 3 2 . 0 MATCH EXISTING CURB AND GUTTER MATCH EXISTING CURB AND GUTTER HEAVY DUTY CONCRETE PAD PED RAMP, SEE DETAILS, TYP. CONCRETE PAVEMENT, TYP. 6" THICKENED EDGE CONC. MEDIAN SEE ARCH'L PLAN FOR DETAILS PED RAMP, SEE DETAILS, TYP. PED RAMP, SEE DETAILS, TYP. PED RAMP, SEE DETAILS, TYP. CONC. WALK, TYP 6' TALL SCREENING FENCE R 1 5 . 0 R15 . 0 R 1 5 . 0 R15 . 0 3' CURB CUT 2' CURB CUT / EOF MNDOT CLASS III RIP RAP DOWN TO BASIN RATE CONTROL BASIN 1 CONSTRUCTION LIMITS CONTRACTOR TO COORDINATE WITH NEIGHBORS AS NECESSARY FOR ANY TEMPORARY CONSTRUCTION EASEMENTS (9) STALLS @ 13.0' = 117.0' (1) STALLS + 1 ACC. @ 9.0' = 18.0' (9) STALLS @ 13.0' = 117.0' 18 . 0 26 . 0 18 . 0 7. 2 5.0 6. 6 13 . 8 9.8 4.0 9.3 5. 0 24.0 26 . 0 13.8 1 3 . 8 14.3 13 . 8 24. 0 (1) STALL @ 18.0' 28 . 6 40.049.7 28 . 6 49.5 40.0 PROPOSED SIGN, TO BE APPROVED UNDER SEPARATE PERMIT 5. 0 C=22 2 . 8 0 CB=S 7 4 ° 5 9 ' 1 6 " E R=76 6 . 3 5 Δ=16 ° 4 3 ' 0 1 " 223.5 8 S0 0 ° 1 1 ' 4 5 " E 1 4 5 . 3 0 S89°54'47"W 215.00 N0 0 ° 1 1 ' 4 5 " W 2 0 3 . 3 4 (D E S C . = 2 0 3 . 5 6 ) Iron Fence Iron Fence Chain Link Fence [A] Chain Link Fence Crosses Property line 12" HDPE 1 2 " H D P E 8" Sa n i t a r y 8" Sanitary (Per Rec.) 8" S a n i t a r y ( P e r R e c . ) 10" WM (Per Rec.) 10" W M ( P e r R e c . ) 10 " W M ( P e r R e c . ) 6" W M ( P e r R e c . ) Wa t . S e r v . (A Pu b l i c R / W ) 50TH A V E N U E N E P.O.B. Found 1/2 Inch Open Iron Pipe Found 1/2 Inch Iron Pipe W/ Cap No. 5065 Found 1/2 Inch Iron Pipe W/ Cap No. 5065 PID: 25-30-24-23-0107 Address: 5025 Central Avenue NE Owner: ALDI INC (Minnesota) PID: 25-30-24-23-0029 Address: 1007 50th Avenue NE Owner: Olson Dean M Etal PID: 25-30-24-23-0028 Address: 1035 Polk PL NE Owner: Koponen Trustee, Robert H PID: 25-30-24-23-0027 Address: 1043 Polk PL NE Owner: Sturdevant Joseph A PID: 25-30-24-23-0026 Address: 1051 Polk PL NE Owner: Sanchez Lopez Cristobal R=766.35 90.16 The E Line of the W 230 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The E Line of the W 445 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The Intersection of a Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 12" PVC 12" PVC A Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 SITE DATA ZONING SUMMARY EXISTING ZONING GB - GENERAL BUSINESS DISTRICT PROPOSED ZONING SAME REQUIRED PROVIDED BUILDING SETBACKS FRONT 15'15' REAR 20'20' SIDE 0'0' PARKING SETBACKS FRONT 15'15' REAR 5'5' SIDE 5'5' REQUIRED PROVIDED PARKING SUMMARY PARKING STALL DIMENSIONS 9 X 18 9 X 18 / 13 X 18 DRIVE AISLE DIMENSIONS 24'26' REQUIRED PROVIDED PARKING STALLS - SURFACE 2 + 4 STACKING 2 + 4 STACKING COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R CITY COLUMBIA HEIGHTS SITE SPECIFIC NOTES: 1.RESERVED FOR CITY SPECIFIC SITE NOTES. OPERATIONAL NOTES SNOW REMOVAL ALL SNOW SHALL BE STORED ON-SITE OUTSIDE PARKING LOT. WHEN FULL, REMOVAL CO. SHALL REMOVE EXCESS OFF-SITE. TRASH REMOVAL TRASH SHALL BE PLACED IN EXTERIOR TRASH AREA AND REMOVED BY COMMERCIAL CO. WEEKLY. DELIVERIES DELIVERIES SHALL OCCUR AT THE FRONT DOOR VIA STANDARD COMMERCIAL DELIVERY VEHICLES (UPS, FED-EX, USPS). REVISION SUMMARY DATE DESCRIPTION C2.0 SITE PLAN 0 1" = 20'-0" 20'-0"10'-0" N Know what's below. before you dig.Call R OWNER INFORMATION TSUNAMI EXPRESS CAR WASH, LLC. 4800 MEADOWS ROAD, SUITE 300 LAKE OSWEGO, OR 97305 CHRIS SCHULDT 920-744-9882 CHRIS@TSUNAMIEXPRESS.COM SITE PLAN LEGEND: TRAFFIC DIRECTIONAL ARROW PAVEMENT MARKINGS SIGN AND POST ASSEMBLY. SHOP DRAWINGS REQUIRED. HC = ACCESSIBLE SIGN NP = NO PARKING FIRE LANE ST = STOP CP = COMPACT CAR PARKING ONLY PROPERTY LINE CURB AND GUTTER-SEE NOTES (T.O.) TIP OUT GUTTER WHERE APPLICABLE-SEE PLAN CONSTRUCTION LIMITS TO CONCRETE PAVEMENT, WITH ALTERNATE FOR BITUMINOUS PAVEMENT. HEAVY DUTY CONCRETE PAD, WITH 1% OR LESS CONCRETE SLOPE. ACCESSIBILITY ROUTE ARROW (IF APPLICABLE) DO NOT PAINT. CONCRETE PAVEMENT (IF APPLICABLE) AS SPECIFIED (PAD OR WALK) SEE GEOTECHNICAL REPORT FOR AGGREGATE BASE & CONCRETE DEPTHS, WITHIN ROW SEE CITY DETAIL, WITHIN PRIVATE PROPERTY SEE CSG DETAIL SITE LAYOUT NOTES: 1.ALL EXISTING UTILITY LOCATIONS SHOWN ARE APPROXIMATE. CONTACT "GOPHER STATE ONE CALL" (651-454-0002 OR 800-252-1166) FOR UTILITY LOCATIONS, 48 HOURS PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL REPAIR OR REPLACE ANY UTILITIES THAT ARE DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. 2.CONTRACTOR SHALL VERIFY LOCATIONS AND LAYOUT OF ALL SITE ELEMENTS PRIOR TO BEGINNING CONSTRUCTION, INCLUDING BUT NOT LIMITED TO, LOCATIONS OF EXISTING AND PROPOSED PROPERTY LINES, EASEMENTS, SETBACKS, UTILITIES, BUILDINGS AND PAVEMENTS. CONTRACTOR IS RESPONSIBLE FOR FINAL LOCATIONS OF ALL ELEMENTS FOR THE SITE. ANY REVISIONS REQUIRED AFTER COMMENCEMENT OF CONSTRUCTION, DUE TO LOCATIONAL ADJUSTMENTS SHALL BE CORRECTED AT NO ADDITIONAL COST TO OWNER. ADJUSTMENTS TO THE LAYOUT SHALL BE APPROVED BY THE ENGINEER/LANDSCAPE ARCHITECT PRIOR TO INSTALLATION OF MATERIALS. STAKE LAYOUT FOR APPROVAL. 3.THE CONTRACTOR SHALL OBTAIN ALL NECESSARY PERMITS PRIOR TO CONSTRUCTION, INCLUDING A RIGHT-OF-WAY AND STREET OPENING PERMIT. 4.THE CONTRACTOR SHALL VERIFY RECOMMENDATIONS NOTED IN THE GEO TECHNICAL REPORT PRIOR TO INSTALLATION OF SITE IMPROVEMENT MATERIALS. 5.CONTRACTOR SHALL FIELD VERIFY COORDINATES AND LOCATION DIMENSIONS & ELEVATIONS OF THE BUILDING AND STAKE FOR REVIEW AND APPROVAL BY THE OWNERS REPRESENTATIVE PRIOR TO INSTALLATION OF FOOTING MATERIALS. 6.LOCATIONS OF STRUCTURES, ROADWAY PAVEMENTS, CURBS AND GUTTERS, BOLLARDS, AND WALKS ARE APPROXIMATE AND SHALL BE STAKED IN THE FIELD, PRIOR TO INSTALLATION, FOR REVIEW AND APPROVAL BY THE ENGINEER/LANDSCAPE ARCHITECT. 7.CURB DIMENSIONS SHOWN ARE TO FACE OF CURB. BUILDING DIMENSIONS ARE TO FACE OF CONCRETE FOUNDATION. LOCATION OF BUILDING IS TO BUILDING FOUNDATION AND SHALL BE AS SHOWN ON THE DRAWINGS. 8.THE CONTRACTOR SHALL SUBMIT SHOP DRAWINGS OR SAMPLES AS SPECIFIED FOR REVIEW AND APPROVAL BY THE ENGINEER/LANDSCAPE ARCHITECT PRIOR TO FABRICATION FOR ALL PREFABRICATED SITE IMPROVEMENT MATERIALS SUCH AS, BUT NOT LIMITED TO THE FOLLOWING, FURNISHINGS, PAVEMENTS, WALLS, RAILINGS, BENCHES, FLAGPOLES, LANDING PADS FOR CURB RAMPS, AND LIGHT AND POLES. THE OWNER RESERVES THE RIGHT TO REJECT INSTALLED MATERIALS NOT PREVIOUSLY APPROVED. 9.PEDESTRIAN CURB RAMPS SHALL BE CONSTRUCTED WITH TRUNCATED DOME LANDING AREAS IN ACCORDANCE WITH A.D.A. REQUIREMENTS-SEE DETAIL. 10.CROSSWALK STRIPING SHALL BE 24" WIDE WHITE PAINTED LINE, SPACED 48" ON CENTER PERPENDICULAR TO THE FLOW OF TRAFFIC. WIDTH OF CROSSWALK SHALL BE 5' WIDE. ALL OTHER PAVEMENT MARKINGS SHALL BE WHITE IN COLOR UNLESS OTHERWISE NOTED OR REQUIRED BY ADA OR LOCAL GOVERNING BODIES. 11.SEE SITE PLAN FOR CURB AND GUTTER TYPE. TAPER BETWEEN CURB TYPES. 12.ALL CURB RADII ARE MINIMUM 3' UNLESS OTHERWISE NOTED. 13.CONTRACTION JOINTS SHALL BE AT TEN-FOOT INTERVALS FOR CURB AND GUTTER AND FIVE-FOOT INTERVALS FOR SIDEWALK. FINAL JOINTING PLAN FOR CONCRETE PAVEMENT TO BE PREPARED BY THE CONTRACTOR. 14.CONTRACTOR SHALL REFER TO FINAL PLAT FOR LOT BOUNDARIES, NUMBERS, AREAS AND DIMENSIONS PRIOR TO SITE IMPROVEMENTS. 15.FIELD VERIFY ALL EXISTING SITE CONDITIONS, DIMENSIONS. 16.PARKING IS TO BE SET PARALLEL OR PERPENDICULAR TO EXISTING BUILDING UNLESS NOTED OTHERWISE. 17.ALL PARKING LOT PAINT STRIPING TO BE WHITE, 4" WIDE TYP. 18.BITUMINOUS PAVING TO BE "LIGHT DUTY" UNLESS OTHERWISE NOTED. SEE DETAIL SHEETS FOR PAVEMENT SECTIONS. 19.ALL TREES THAT ARE TO REMAIN ARE TO BE PROTECTED FROM DAMAGE WITH A CONSTRUCTION FENCE AT THE DRIP LINE. SEE LANDSCAPE DOCUMENTS. 20.CONTRACTOR IS RESPONSIBLE TO INSTALL ANY SIDEWALK AND CURBING PER DESIGN PLAN. CONTRACTOR TO VERIFY ALL CURBS AND SIDEWALKS WILL DRAIN PROPERLY IN FIELD CONDITIONS. CONTRACTOR MUST CONTACT THE CIVIL ENGINEER 24-HOURS PRIOR TO ANY CURB AND/OR SIDEWALK INSTALLATION TO REVIEW AND INSPECT CURB STAKES. CONTRACTOR IS RESPONSIBLE FOR ANY CURB OR SIDEWALK REPLACEMENT IF THIS PROCEDURE IS NOT FOLLOWED. 39 Item 2. NO PARKING CONSTRUCTION LIMITS C=22 2 . 8 0 CB=S 7 4 ° 5 9 ' 1 6 " E R=76 6 . 3 5 Δ=16 ° 4 3 ' 0 1 " 223.5 8 S0 0 ° 1 1 ' 4 5 " E 1 4 5 . 3 0 S89°54'47"W 215.00 N0 0 ° 1 1 ' 4 5 " W 2 0 3 . 3 4 (D E S C . = 2 0 3 . 5 6 ) Concrete Walkway Concrete Walkway Concrete Walkway Co n c r e t e W a l k w a y Concrete S i d e w a l k Concrete Retaining Wall Bituminous Parking Lot Concrete Retaining Wall Iron Fence Iron Fence Chain Link Fence [A] Chain Link Fence Crosses Property line 12" HDPE 1 2 " H D P E 8" Sa n i t a r y 8" Sanitary (Per Rec.) 8" S a n i t a r y ( P e r R e c . ) 10" WM (Per Rec.) 10" W M ( P e r R e c . ) 10 " W M ( P e r R e c . ) 6" W M ( P e r R e c . ) Wa t . S e r v . (A Pu b l i c R / W ) 50TH A V E N U E N E PID: 25-30-24-23-0107 Address: 5025 Central Avenue NE Owner: ALDI INC (Minnesota) PID: 25-30-24-23-0029 Address: 1007 50th Avenue NE Owner: Olson Dean M Etal PID: 25-30-24-23-0028 Address: 1035 Polk PL NE Owner: Koponen Trustee, Robert H PID: 25-30-24-23-0027 Address: 1043 Polk PL NE Owner: Sturdevant Joseph A PID: 25-30-24-23-0026 Address: 1051 Polk PL NE Owner: Sanchez Lopez Cristobal R=766.35 90.16 The E Line of the W 230 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The E Line of the W 445 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The Intersection of a Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 12" PVC 12" PVC A Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 EOF= 932.37 EOF= 931.35 COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 48776 David J. Knaeble LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MINNESOTA. 8/05/24 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R C3.0 GRADING PLAN GENERAL GRADING NOTES: 1.0' CONTOUR ELEVATION INTERVAL GRADING PLAN LEGEND: SPOT GRADE ELEVATION GUTTER SPOT GRADE ELEVATION TOP OF CURB SPOT GRADE ELEVATION BOTTOM OF STAIRS/TOP OF STAIRS CITY OF COLUMBIA HEIGHTS GRADING NOTES: 1.RESERVED FOR CITY SPECIFIC GRADING NOTES. EX. 1' CONTOUR ELEVATION INTERVAL SPOT GRADE ELEVATION (GUTTER/FLOW LINE UNLESS OTHERWISE NOTED) CURB AND GUTTER (T.O = TIP OUT) EMERGENCY OVERFLOW 41.26 1125 891.00 G 891.00 TC 891.00 BS/TS 1137 EOF= 931.35 & 932.37 TO SPOT GRADE ELEVATION MATCH EXISTING891.00 ME GB GRADE BREAK - HIGH POINTS 1.CONTRACTOR SHALL VERIFY ALL BUILDING ELEVATIONS, (FFE, LFE, GFE), PRIOR TO CONSTRUCTION BY CROSS CHECKING WITH ARCHITECTURAL, STRUCTURAL AND CIVIL ELEVATIONS FOR EQUIVALENT "100" ELEVATIONS. THIS MUST BE DONE PRIOR TO EXCAVATION AND INSTALLATION OF ANY FOOTING MATERIALS. VERIFICATION OF THIS COORDINATION SHALL BE CONFIRMED IN WRITING BY CIVIL, SURVEYOR, ARCHITECTURAL, STRUCTURAL AND CONTRACTOR PRIOR TO CONSTRUCTION. 2.ALL EXISTING UTILITY LOCATIONS SHOWN ARE APPROXIMATE. CONTACT "GOPHER STATE ONE CALL" (651-454-0002 OR 800-252-1166) FOR UTILITY LOCATIONS, 48 HOURS PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL REPAIR OR REPLACE ANY UTILITIES THAT ARE DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. 3.SEE SITE PLAN FOR HORIZONTAL LAYOUT & GENERAL GRADING NOTES. 4.THE CONTRACTOR SHALL COMPLETE THE SITE GRADING CONSTRUCTION (INCLUDING BUT NOT LIMITED TO SITE PREPARATION, SOIL CORRECTION, EXCAVATION, EMBANKMENT, ETC.) IN ACCORDANCE WITH THE REQUIREMENTS OF THE OWNER'S SOILS ENGINEER. ALL SOIL TESTING SHALL BE COMPLETED BY THE OWNER'S SOILS ENGINEER. THE CONTRACTOR SHALL BE RESPONSIBLE FOR COORDINATING ALL REQUIRED SOIL TESTS AND INSPECTIONS WITH THE SOILS ENGINEER. 5.ANY ELEMENTS OF AN EARTH RETENTION SYSTEM AND RELATED EXCAVATIONS THAT FALL WITHIN THE PUBLIC RIGHT OF WAY WILL REQUIRE A “RIGHT OF WAY EXCAVATION PERMIT”. CONTRACTOR IS RESPONSIBLE FOR AQUIRING THIS PERMIT PRIOR TO CONSTRUCTION IF APPLICABLE 6.GRADING AND EXCAVATION ACTIVITIES SHALL BE PERFORMED IN ACCORDANCE WITH THE NATIONAL POLLUTION DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT REQUIREMENTS & PERMIT REQUIREMENTS OF THE CITY. 7.PROPOSED SPOT GRADES ARE FLOW-LINE FINISHED GRADE ELEVATIONS, UNLESS OTHERWISE NOTED. 8.GRADES OF WALKS SHALL BE INSTALLED WITH 5% MAX. LONGITUDINAL SLOPE AND 1% MIN. AND 2% MAX. CROSS SLOPE, UNLESS OTHERWISE NOTED. 9.PROPOSED SLOPES SHALL NOT EXCEED 3:1 UNLESS INDICATED OTHERWISE ON THE DRAWINGS. MAXIMUM SLOPES IN MAINTAINED AREAS IS 4:1. 10.PROPOSED RETAINING WALLS, FREESTANDING WALLS, OR COMBINATION OF WALL TYPES GREATER THAN 4' IN HEIGHT SHALL BE DESIGNED AND ENGINEERED BY A REGISTERED RETAINING WALL ENGINEER. DESIGN DRAWINGS SHALL BE SUBMITTED FOR REVIEW AND APPROVAL PRIOR TO CONSTRUCTION. 11.THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTENANCE OF GRADE STAKES THROUGHOUT THE DURATION OF CONSTRUCTION TO ESTABLISH PROPER GRADES. THE CONTRACTOR SHALL ALSO BE RESPONSIBLE FOR A FINAL FIELD CHECK OF FINISHED GRADES ACCEPTABLE TO THE ENGINEER/LANDSCAPE ARCHITECT PRIOR TO TOPSOIL AND SODDING ACTIVITIES. 12.IF EXCESS OR SHORTAGE OF SOIL MATERIAL EXISTS, THE CONTRACTOR SHALL TRANSPORT ALL EXCESS SOIL MATERIAL OFF THE SITE TO AN AREA SELECTED BY THE CONTRACTOR, OR IMPORT SUITABLE MATERIAL TO THE SITE. 13.EXCAVATE TOPSOIL FROM AREAS TO BE FURTHER EXCAVATED OR REGRADED AND STOCKPILE IN AREAS DESIGNATED ON THE SITE. THE CONTRACTOR SHALL SALVAGE ENOUGH TOPSOIL FOR RESPREADING ON THE SITE AS SPECIFIED. EXCESS TOPSOIL SHALL BE PLACED IN EMBANKMENT AREAS, OUTSIDE OF BUILDING PADS, ROADWAYS AND PARKING AREAS. THE CONTRACTOR SHALL SUBCUT CUT AREAS, WHERE TURF IS TO BE ESTABLISHED, TO A DEPTH OF 6 INCHES. RESPREAD TOPSOIL IN AREAS WHERE TURF IS TO BE ESTABLISHED TO A MINIMUM DEPTH OF 6 INCHES. 14.FINISHED GRADING SHALL BE COMPLETED. THE CONTRACTOR SHALL UNIFORMLY GRADE AREAS WITHIN LIMITS OF GRADING, INCLUDING ADJACENT TRANSITION AREAS. PROVIDE A SMOOTH FINISHED SURFACE WITHIN SPECIFIED TOLERANCES, WITH UNIFORM LEVELS OR SLOPES BETWEEN POINTS WHERE ELEVATIONS ARE SHOWN, OR BETWEEN SUCH POINTS AND EXISTING GRADES. AREAS THAT HAVE BEEN FINISH GRADED SHALL BE PROTECTED FROM SUBSEQUENT CONSTRUCTION OPERATIONS, TRAFFIC AND EROSION. REPAIR ALL AREAS THAT HAVE BECOME RUTTED BY TRAFFIC OR ERODED BY WATER OR HAS SETTLED BELOW THE CORRECT GRADE. ALL AREAS DISTURBED BY THE CONTRACTOR'S OPERATIONS SHALL BE RESTORED TO EQUAL OR BETTER THAN ORIGINAL CONDITION OR TO THE REQUIREMENTS OF THE NEW WORK. 15.PRIOR TO PLACEMENT OF THE AGGREGATE BASE, A TEST ROLL WILL BE REQUIRED ON THE STREET AND/OR PARKING AREA SUBGRADE. THE CONTRACTOR SHALL PROVIDE A LOADED TANDEM AXLE TRUCK WITH A GROSS WEIGHT OF 25 TONS. THE TEST ROLLING SHALL BE AT THE DIRECTION OF THE SOILS ENGINEER AND SHALL BE COMPLETED IN AREAS AS DIRECTED BY THE SOILS ENGINEER. THE SOILS ENGINEER SHALL DETERMINE WHICH SECTIONS OF THE STREET OR PARKING AREA ARE UNSTABLE. CORRECTION OF THE SUBGRADE SOILS SHALL BE COMPLETED IN ACCORDANCE WITH THE REQUIREMENTS OF THE SOILS ENGINEER. NO TEST ROLL SHALL OCCUR WITHIN 10' OF ANY UNDERGROUND STORM RETENTION/DETENTION SYSTEMS. 16.TOLERANCES 16.1.THE BUILDING SUBGRADE FINISHED SURFACE ELEVATION SHALL NOT VARY BY MORE THAN 0.30 FOOT ABOVE, OR 0.30 FOOT BELOW, THE PRESCRIBED ELEVATION AT ANY POINT WHERE MEASUREMENT IS MADE. 16.2.THE STREET OR PARKING AREA SUBGRADE FINISHED SURFACE ELEVATION SHALL NOT VARY BY MORE THAN 0.05 FOOT ABOVE, OR 0.10 FOOT BELOW, THE PRESCRIBED ELEVATION OF ANY POINT WHERE MEASUREMENT IS MADE. 16.3.AREAS WHICH ARE TO RECEIVE TOPSOIL SHALL BE GRADED TO WITHIN 0.30 FOOT ABOVE OR BELOW THE REQUIRED ELEVATION, UNLESS DIRECTED OTHERWISE BY THE ENGINEER. 16.4.TOPSOIL SHALL BE GRADED TO PLUS OR MINUS 1/2 INCH OF THE SPECIFIED THICKNESS. 17.MAINTENANCE 17.1.THE CONTRACTOR SHALL PROTECT NEWLY GRADED AREAS FROM TRAFFIC AND EROSION, AND KEEP AREA FREE OF TRASH AND DEBRIS. 17.2.CONTRACTOR SHALL REPAIR AND REESTABLISH GRADES IN SETTLED, ERODED AND RUTTED AREAS TO SPECIFIED TOLERANCES. DURING THE CONSTRUCTION, IF REQUIRED, AND DURING THE WARRANTY PERIOD, ERODED AREAS WHERE TURF IS TO BE ESTABLISHED SHALL BE RESEEDED AND MULCHED. 17.3.WHERE COMPLETED COMPACTED AREAS ARE DISTURBED BY SUBSEQUENT CONSTRUCTION OPERATIONS OR ADVERSE WEATHER, CONTRACTOR SHALL SCARIFY, SURFACE, RESHAPE, AND COMPACT TO REQUIRED DENSITY PRIOR TO FURTHER CONSTRUCTION. SEE SWPPP ON SHEETS SW1.0 - SW1.3 EROSION CONTROL NOTES: CONSTRUCTION LIMITS REVISION SUMMARY DATE DESCRIPTION 0 1" = 20'-0" 20'-0"10'-0" N Know what's below. before you dig.Call R 40 Item 2. RATE CONTROL BASIN 1 CONSTRUCTION LIMITS C=22 2 . 8 0 CB=S 7 4 ° 5 9 ' 1 6 " E R=76 6 . 3 5 Δ=16 ° 4 3 ' 0 1 " 223.5 8 S0 0 ° 1 1 ' 4 5 " E 1 4 5 . 3 0 S89°54'47"W 215.00 N0 0 ° 1 1 ' 4 5 " W 2 0 3 . 3 4 (D E S C . = 2 0 3 . 5 6 ) Bituminous Parking Lot Iron Fence Iron Fence Chain Link Fence [A] Chain Link Fence Crosses Property line 8" Sa n i t a r y 8" Sanitary (Per Rec.) 8" S a n i t a r y ( P e r R e c . ) 10" WM (Per Rec.) 10" W M ( P e r R e c . ) 10 " W M ( P e r R e c . ) 6" W M ( P e r R e c . ) Wa t . S e r v . (A Pu b l i c R / W ) 50TH A V E N U E N E PID: 25-30-24-23-0107 Address: 5025 Central Avenue NE Owner: ALDI INC (Minnesota) PID: 25-30-24-23-0029 Address: 1007 50th Avenue NE Owner: Olson Dean M Etal PID: 25-30-24-23-0028 Address: 1035 Polk PL NE Owner: Koponen Trustee, Robert H PID: 25-30-24-23-0027 Address: 1043 Polk PL NE Owner: Sturdevant Joseph A PID: 25-30-24-23-0026 Address: 1051 Polk PL NE Owner: Sanchez Lopez Cristobal R=766.35 90.16 The E Line of the W 230 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The E Line of the W 445 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The Intersection of a Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 A Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 REMOVE ALL EXISTING PRIVATE UTILITY SERVICES PER UTILITY COMPANY AND CITY STANDARDS EOF= 932.37 SEE MECH'L PLANS FOR SANITARY REUSE SYSTEM CONTRACTOR SHALL SAWCUT & REMOVE PUBLIC PVMTS., CURBS, AND WALKS FOR INSTALLATION OF UTILITIES. UPON COMPLETION OF UTILITY WORK, REPLACE ALL MATERIAL, IN KIND, AND TO CITY STANDARD AND APPROVAL CBMH 11A RIM=930.00 IE=926.16 8" NYLOPLAST STRUCTURE WITH 8" DOMED GRATE STUB 6" SANITARY SERVICE TO 5' FROM BLDG. COORD. W/ MECH'L IE=922.26 149 LF 6" SCH40 PVC SAN. SEWER @ 1.00% SANMH C RIM=932.56 IE (S)=921.93 IE (W/N)=922.03 OIL AND WATER SEPARATOR RIM (W)=932.50 RIM (E)=932.50 IE (E)=922.19 IE (W)=922.36 COORD. W/MECH'L. STRIEM OT-1000 OR EQUIVALENT 23 LF 6" SCH40 PVC SAN. SEWER @ 1.00% EX. SAN MH RIM=929.52 EX 8" IE (W/E)=919.42± (FIELD VERIFY PRIOR TO CONST) PROP IE=919.62 CORE DRILL CONNECTION TO MH. COORDINATE WITH CITY. 16 LF 6" SCH40 PVC SAN. SEWER @ 1.00% 23 LF 6" SCH40 PVC SAN. SEWER @ 1.00% SAN CLEANOUT D RIM=932.46 IE=922.59 6" COMBINED DIP WATER SERVICE , STUB TO WITHIN 5' FROM BUILDING, COORD. W/MECH'L. VERIFY SIZE WITH FIRE SPRINKLER CONTRACTOR IE=925.00 6" BLDG STORM SERVICE, STUB TO WITHIN 5' FROM BUILDING, COORD. W/ MECH'L STUB IE=928.86 SAN CLEANOUT A RIM=931.30 IE=920.22 SAN CLEANOUT B RIM=932.19 IE=921.71 60 LF 6" SCH40 PVC SAN. SEWER @ 1.00% 22 LF 6" SCH40 PVC SAN. SEWER @ 1.00% CUT IN TEE AND SLEEVE WATER CONNECTION TO MAIN, COORD. W/CITY 6" DIP WATER SERVICE MAINTAIN 8' COVER BELOW BASINGATE VALVE AND VALVE BOX CROSSING 6" WM IE=923.50 6" SAN IE=921.32 12" STM IE=927.48 CB 3 RIM=932.28 IE=928.28 INSTALL 20 LF 4" DT BELOW CLASS V LAYER, TYP. CBMH 2 RIM=932.33 IE=927.82 CBMH 1 RIM=930.15 IE=926.20 ALL FINAL UTILITY SIZES, MATERIALS, LOCATION, AND CONNECTIONS TO BE VERIFIED BY A MECHANICAL ENGINEER AND COORDINATED WITH CIVIL PRIOR TO CONSTRUCTION. CBMH 11 RIM=930.36 IE=925.56 EX. STM MH EX. RIM=930.16 PR. RIM=929.90 EX. IE (W)=923.68 (FIELD VERIFY) PR. IE (NW)=925.95 PR. IE (NE)=925.50 CORE DRILL NEW CONNECTION TO EXISTING MH. BULKHEAD EXISTING OPENING TO THE EAST. ADJUST CASTING AS NECESSARY. 93 LF 12" HDPE STORM @ 0.50% 145 LF 12" SCH40 PVC STORM @ 0.50% 121 LF 12" HDPE STORM @ 1.34% 19 LF 12" HDPE STORM @ 1.33% 11 LF 12" HDPE STORM @ 0.50% 42 LF 12" HDPE STORM @ 3.83% MH 12 RIM=931.57 IE=927.17 60 LF 6" SCH40 PVC STORM @1.00% CB 13 RIM=931.89 IE=927.89 SEE MECH'L PLANS FOR TRENCH DRAIN SYSTEM AT CAR WASH GARAGE DOOR OPENINGS. 6"X12" WYE 12" IE=927.46 6" IE=927.96 45 LF 6" SCH40 PVC STORM @ 2.00% DS AD 4 RIM=+/-933.50 INV=928.68 SEE DETAILS FIRE DEPARTMENT CONNECTION, COORD. W/MECH'L EOF= 931.35 20 LF 6" SCH40 PVC STORM @ 2.00% COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 48776 David J. Knaeble LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MINNESOTA. 8/05/24 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R UTILITY PLAN LEGEND: CITY OF COLUMBIA HEIGHTS UTILITY NOTES: 1.RESERVED FOR CITY SPECIFIC UTILITY NOTES. CATCH BASIN GATE VALVE AND VALVE BOX SANITARY SEWER STORM SEWER WATER MAIN PROPOSED FIRE HYDRANT MANHOLE FES AND RIP RAP CONSTRUCTION LIMITS DRAINTILE REVISION SUMMARY DATE DESCRIPTION C4.0 UTILITY PLAN 0 1" = 20'-0" 20'-0"10'-0" N Know what's below. before you dig.Call R GENERAL UTILITY NOTES: 1.ALL EXISTING UTILITY LOCATIONS SHOWN ARE APPROXIMATE. CONTACT "GOPHER STATE ONE CALL" (651-454-0002 OR 800-252-1166) FOR UTILITY LOCATIONS, 48 HOURS PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL REPAIR OR REPLACE ANY UTILITIES THAT ARE DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. 2.SEE SITE PLAN FOR HORIZONTAL DIMENSIONS AND LAYOUT. 3.CONTRACTOR SHALL FIELD VERIFY LOCATION AND ELEVATION OF EXISTING UTILITIES AND TOPOGRAPHIC FEATURES PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE ENGINEER OF DISCREPANCIES OR VARIATIONS FROM THE PLANS. 4.UTILITY INSTALLATION SHALL CONFORM TO THE CURRENT EDITION OF "STANDARD SPECIFICATIONS FOR WATER MAIN AND SERVICE LINE INSTALLATION" AND "SANITARY SEWER AND STORM SEWER INSTALLATION" AS PREPARED BY THE CITY ENGINEERS ASSOCIATION OF MINNESOTA (CEAM), AND SHALL CONFORM WITH THE REQUIREMENTS OF THE CITY AND THE PROJECT SPECIFICATIONS. 5.CASTINGS SHALL BE SALVAGED FROM STRUCTURE REMOVALS AND RE-USED OR PLACED AT THE DIRECTION OF THE OWNER. 6.ALL WATER PIPE SHALL BE CLASS 52 DUCTILE IRON PIPE (DIP) AWWA C151, ASME B16.4, AWWA C110, AWWA C153 UNLESS OTHERWISE NOTED. 7.ALL SANITARY SEWER SHALL BE SDR 26 POLYVINYL CHLORIDE (PVC) ASTM D3034 & F679, OR SCH 40 ASTM D1785, 2665, ASTM F794, 1866) UNLESS OTHERWISE NOTED. 8.ALL STORM SEWER PIPE SHALL BE HDPE ASTM F714 OR F2306 WITH ASTM D3212 SPEC FITTINGS UNLESS OTHERWISE NOTED. 9.PIPE LENGTHS SHOWN ARE FROM CENTER TO CENTER OF STRUCTURE OR TO END OF FLARED END SECTION. 10.UTILITIES ON THE PLAN ARE SHOWN TO WITHIN 5' OF THE BUILDING FOOTPRINT. THE CONTRACTOR IS ULTIMATELY RESPONSIBLE FOR THE FINAL CONNECTION TO BUILDING LINES. COORDINATE WITH ARCHITECTURAL AND MECHANICAL PLANS. 11.CATCH BASINS AND MANHOLES IN PAVED AREAS SHALL BE SUMPED 0.04 FEET. ALL CATCH BASINS IN GUTTERS SHALL BE SUMPED 0.15 FEET PER DETAILS. RIM ELEVATIONS SHOWN ON THIS PLAN DO NOT REFLECT SUMPED ELEVATIONS. 12.ALL FIRE HYDRANTS SHALL BE LOCATED 5 FEET BEHIND BACK OF CURB UNLESS OTHERWISE NOTED. 13.HYDRANT TYPE, VALVE, AND CONNECTION SHALL BE IN ACCORDANCE WITH CITY REQUIREMENTS. HYDRANT EXTENSIONS ARE INCIDENTAL. 14.A MINIMUM OF 8 FEET OF COVER IS REQUIRED OVER ALL WATERMAIN, UNLESS OTHERWISE NOTED. EXTRA DEPTH MAY BE REQUIRED TO MAINTAIN A MINIMUM OF 18" VERTICAL SEPARATION TO SANITARY OR STORM SEWER LINES. EXTRA DEPTH WATERMAIN IS INCIDENTAL. 15.A MINIMUM OF 18 INCHES OF VERTICAL SEPARATION AND 10 FEET OF HORIZONTAL SEPARATION IS REQUIRED FOR ALL UTILITIES, UNLESS OTHERWISE NOTED. 16.ALL CONNECTIONS TO EXISTING UTILITIES SHALL BE IN ACCORDANCE WITH CITY STANDARDS AND COORDINATED WITH THE CITY PRIOR TO CONSTRUCTION. 17.CONNECTIONS TO EXISTING STRUCTURES SHALL BE CORE-DRILLED. 18.COORDINATE LOCATIONS AND SIZES OF SERVICE CONNECTIONS WITH THE MECHANICAL DRAWINGS. 19.COORDINATE INSTALLATION AND SCHEDULING OF THE INSTALLATION OF UTILITIES WITH ADJACENT CONTRACTORS AND CITY STAFF. 20.ALL STREET REPAIRS AND PATCHING SHALL BE PERFORMED PER THE REQUIREMENTS OF THE CITY. ALL PAVEMENT CONNECTIONS SHALL BE SAWCUT. ALL TRAFFIC CONTROLS SHALL BE PROVIDED BY THE CONTRACTOR AND SHALL BE ESTABLISHED PER THE REQUIREMENTS OF THE MINNESOTA MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (MMUTCD) AND THE CITY. THIS SHALL INCLUDE BUT NOT BE LIMITED TO SIGNAGE, BARRICADES, FLASHERS, AND FLAGGERS AS NEEDED. ALL PUBLIC STREETS SHALL BE OPEN TO TRAFFIC AT ALL TIMES. NO ROAD CLOSURES SHALL BE PERMITTED WITHOUT APPROVAL BY THE CITY. 21.ALL STRUCTURES, PUBLIC AND PRIVATE, SHALL BE ADJUSTED TO PROPOSED GRADES WHERE REQUIRED. THE REQUIREMENTS OF ALL OWNERS MUST BE COMPLIED WITH. STRUCTURES BEING RESET TO PAVED AREAS MUST MEET OWNERS REQUIREMENTS FOR TRAFFIC LOADING. 22.CONTRACTOR SHALL COORDINATE ALL WORK WITH PRIVATE UTILITY COMPANIES. 23.CONTRACTOR SHALL COORDINATE CONNECTION OF IRRIGATION SERVICE TO UTILITIES. COORDINATE THE INSTALLATION OF IRRIGATION SLEEVES NECESSARY AS TO NOT IMPACT INSTALLATION OF UTILITIES. 24.CONTRACTOR SHALL MAINTAIN AS-BUILT PLANS THROUGHOUT CONSTRUCTION AND SUBMIT THESE PLANS TO ENGINEER UPON COMPLETION OF WORK. 25.ALL JOINTS AND CONNECTIONS IN STORM SEWER SYSTEM SHALL BE GASTIGHT OR WATERTIGHT. APPROVED RESILIENT RUBBER JOINTS MUST BE USED TO MAKE WATERTIGHT CONNECTIONS TO MANHOLES, CATCHBASINS, OR OTHER STRUCTURES. 26.ALL PORTIONS OF THE STORM SEWER SYSTEM LOCATED WITHIN 10 FEET OF THE BUILDING OR WATER SERVICE LINE MUST BE TESTED IN ACCORDANCE WITH MN RULES, CHAPTER 4714, SECTION 1109.0. 27.FOR ALL SITES LOCATED IN CLAY SOIL AREAS, DRAIN TILE MUST BE INSTALLED AT ALL LOW POINT CATCH BASINS 25' IN EACH DIRECTION. SEE PLAN AND DETAIL. INSTALL LOW POINT DRAIN TILE PER PLANS AND GEOTECHNICAL REPORT RECOMMENDATIONS AND REQUIREMENTS. 41 Item 2. COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 48776 David J. Knaeble LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MINNESOTA. 8/05/24 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R C5.0 CIVIL DETAILS REVISION SUMMARY DATE DESCRIPTION 42 Item 2. COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 48776 David J. Knaeble LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MINNESOTA. 8/05/24 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R C5.1 CIVIL DETAILS REVISION SUMMARY DATE DESCRIPTION 6" 8"12" 13 1 / 2 " 6" FINISHED GRADE NOTES: 1. INSTALL CONSTRUCTION JOINTS AT 10'-0" O.C. +/- 2. BASE DEPTH DEPENDANT UPON SOIL CONDITIONS FINISHED GRADE N T S B-612 CONCRETE CURB AND GUTTER 7" CLASS 5 AGGREGATE SUB-BASE, COORD. BITUMINOUS PAVEMENT DETAIL (6" MIN.) 0.5% SLOPE-CONSTRUCT WITH REVERSE SLOPE GUTTER (T.O. GUTTER) WHERE THE PAVEMENT SLOPES AWAY FROM CURB. SEE PLAN 1:3 BATTER SLOPE GUTTER 3 4" PER 1'-0" 3" RADIUS CORNERS 12" RADIUS COMPACTED SUB-BASE, EXIST. NATIVE OR PER SOILS REPORT 5 EXPANSION JOINT SEALANT DETAILS N T S NOTES: 1.SEPARATING TAPE OR BACKER MATERIAL REQUIRED TO PREVENT JOINT SEALANT FROM FLOWING INTO SAWCUT, TO SEPARATE NONCOMPATIBLE MATERIALS AND TO PREVENT SEALANT FROM BONDING TO BOTTOM OF RESERVOIR. 2.TOP OF SEALANT WILL BE 1/8" TO 1/4" BELOW TOP OF PAVEMENT. W= WIDTH OF SEALANT RESERVOIR 1/2" MINIMUN 5/8" MAXIMUM EXCEPT FOR 3/4" EXPANSION JOINTS D= DEPTH OF SEALANT 1.0 TO 1.5 TIMES W T= DEPTH OF INTIAL SAWCUT, 1/4 OF THE SLAB THINKNESS FOR PAVEMENT LESS THAN 12" POURED JOINT SEALANT SEPARATING TAPE SEE NOTE 1 SEE NOTE 2 POURED JOINT SEALANT SEE NOTE 2 BACKER MATERIAL SEE NOTE 1 W D T T W D POURED JOINT SEALANT SEE NOTE 2 BACKER MATERIAL SEE NOTE 1 T W D COMPACTED CLASS 5 AGGREGATE BASE. SEE SOIL REPORT FOR DEPTH, 6" MIN. EXTERIOR BUILDING WALL CONCRETE PAVEMENT CONCRETE PAVEMENT CONCRETE PAVEMENT CONCRETE PAVEMENT CONCRETE PAVEMENT 6 20" FINISHED GRADE NOTES: 1. INSTALL CONSTRUCTION JOINTS AT 10'-0" O.C. +/- 2. BASE DEPTH DEPENDANT UPON SOIL CONDITIONS6" 6" RIBBON CURB N T S ADJ. PVMT. SECTION, OR OTHER MATERIALS, SEE PLAN CONTINUOUS SLOPE CONCRETE "CURB" SLOPE ACROSS CURB 3 4" PER 1'-0"ADJ. PVMT. SECTION, LAWN, BIT. PVMT., OR OTHER MATERIALS, SEE PLAN COMPACTED CLASS 5 AGGREGATE BASE, SEE SOIL REPORT FOR DEPTH, 6" MIN. COMPACTED SUB-BASE, NATIVE SOIL OR AS PER SOILS REPORT RECOMMENDATIONS FINISHED GRADE 7" 3 1.INSTALLATION AND REINFORCEMENT SHALL BE IN ACCORDANCE TO A CERTIFIED, ON-SITE A.C.I. TECHNICIAN AS SPECIFIED. 2.SEE GEO-TECHNICAL RECOMMENDATIONS FOR SOILS ENGINEER'S PVMT. SECTION REQUIREMENTS. 3.SEE LAYOUT DRAWINGS FOR LIMITS OF WALKS. 4.SEE CONCRETE JOINT DETAIL FOR REQUIREMENTS. 5.1/2" WIDE EXPANSION JOINT AND SEALANT AT ALL CURBS. 6.WIRE MESH AND CHAIRS REQUIRED FOR ALL WALKS OR IN LOCATIONS FOR VEHICULAR TRAFFIC. THICKENED EDGE CONC. WALK N T S 6" 6" NOTE: COMPACTED SUBGRADE CLASS 5 AGGREGATE BASE MIN. 6" UNDER CONCRETE (VERIFY W/ SOILS ENGINEER) W1.6 X W1.6 WIRE MESH W/ SPACING CHAIRS. CENTER MESH IN CONC. POUR, ALL DIRECTIONS. (REGARDLESS OF WALK SECTION CONCRETE DETAIL, MESH IS REQ. THROUGHOUT ENTIRE WIDTH OF ALL "THICKENED EDGE" WALKS.) INSTALL ADJ. MULCH OR LAWN 1" FROM TOP OF WALK, WHERE APPLICABLE CONC. PVMT. SECTION - TYP. 5", SEE DETAIL FOR WALK SECTION, VERIFY W/ SOILS ENGINEER ADJACENT PVMT., SEE SITE PLAN FOR LAYOUT, DETAIL FOR SECTION AND VERIFY W/ SOILS ENGINEER. ENSURE WATER FLOWS AWAY FROM ALL INSTANCES OF "THICKENED EDGE WALK". COORDINATE W/ GRADING PLAN FINISH SURFACE, SEE DETAILS FOR SCORING PATTERN AND TEXTURE, VERIFY WITH OWNER CONTROL JOINTS PER SITE PLAN 6" 1" 5" 4 6" 3' - 6 " 3' - 6 " 60 " - 6 6 " FR O M P A V E M E N T T O BO T T O M O F S I G N ACCESSIBLE SIGN & CHANNEL POST - LOT LOCATION N T S 1'-6" NOTE: 1. SIGN SHALL BE AS SPECIFIED. 2. BOTTOM OF SIGNS TO BE MOUNTED 60"-66" FROM PARKING GRADE, SEE SIGN POST INSTALLATION DETAIL 3. VERIFY POST PAINT C0LOR WITH LANDSCAPE ARCHITECT PRIOR TO INSTALLATION. 14" METAL PLATE WELDED TO BOTTOM OF 6” PIPE GROUT INSIDE OF INNER PIPE ANNULAR SPACE TO 1" FROM TOP ADJACENT PVMT. - MATERIAL VARIES, SEE PLAN & DETAILS SLOPE TOP OF FOOTING AWAY FROM BASE, TYP. 1" SILICONE RUBBER OR ASPHALTIC CAULKING COMPOUND 6" OUTSIDE DIA. GALVANIZED STEEL PIPE PAINT 1 COAT ANTI-RUST PRIMER PRIMER 3-3/16", 2 LBS./FT., COMMERCIAL GRADE, GALVANIZED STEEL "CHANNEL" STYLE SIGN POST METAL SIGN(S) ACCORDING TO MN STATE CODE, PROVIDE SHOP DRAWING OF SIGN MODEL GALVANIZED STEEL FASTENER (TYP. OF 2), INCLUDE REINFORCING PLATE AT EACH BOLT LOCATION (3"X3") TRIM POST TO BELOW TOP OF SIGN 6" 1 4" THICK, COMMERCIAL GRADE THERMOPLASTIC POLYETHYLENE PROTECTIVE SLEEVE, PER IDEAL SHIELD OR SIMILAR. SHOP DRAWINGS REQUIRED. PROVIDE COLOR SELECTION OPTIONS CUT TOP OF POLYETHYLENE SLEEVE TO ACCOMMODATE CHANNEL POST (ON-SITE) COMMERCIAL GRADE CONSPICUITY MARKINGS (TAPE), 3M DIAMOND GRADE SERIES 973, OR SIMILAR COMPACTED AGG., TYP. 6" INSIDE DIA. GALVANIZED STEEL PIPE PAINT WITH ANTI-RUST PRIMER CONC. FOOTING, SONOTUBE® FORM RECOMMENDED NO PARKING TO BE USED IN FRONT OF STRIPED ACCESS AISLE 7 ACCESSIBLE PARKING PAVEMENT MARKING N T S NO PARKING NOTE: 1.ADHERE TO ALL STATE & FEDERAL ADA STANDARDS FOR PARKING, PAINT & SIGNAGE. 2.VERIFY AND LAYOUT ALL PAINTED FORMS & STRIPING PRIOR TO INSTALLATION 3.SEE PLAN FOR ACTUAL PARKING SPACES LAYOUT 4.ALL PAINT COLORS MUST CONFORM TO STATE AND FEDERAL ADA STANDARDS NO PARKING NO PARKING 4" WIDE PAINTED STRIPING, 45° CROSS STRIPE PATTERN AT 2' O.C. AT ACCESS AISLE FACE OF CURB ADJ. SIDEWALK ACCESSIBLE CURB RAMP. SEE GRADING & DETAILS HANDICAP SIGN, CENTERED AT HEAD OF PARKING SPACE AND ACCESS AISLE 2' MIN,. AND 8' MAX. FROM FACE OF CURB HANDICAP PARKING ACCESS AISLE WITH PAINTED 12" HIGH LETTERING OF "NO PARKING" CENTERED TOWARD DRIVE AISLE NO PARKING SIGN CENTERED AT HEAD OF SPACE ON CENTER STRIPE HANDICAP PARKING SPACE WITH PAINTED INTERNATIONAL SYMBOL OF ACCESSIBILITY WITH CONTRASTING SQUARE BACKGROUND, CENTERED TOWARD DRIVE AISLE NOTE: FOR REFERENCE ONLY, USE STANDARD ADA PVMT. PAINT TEMPLATE 6" RADIUS 12" DIAMETER 6" LINE WIDTH FOR FIGURE 6" LINE WIDTH OUTSIDE BORDER 5'-6" SQUARE OVERALL 18" RADIUS "WHEEL" SHAPE PAINTED SYMBOL DIAGRAM 8' MIN. 8' MIN. 8' MIN. PE R C I T Y CO D E 8 BITUMINOUS PAVEMENT - ALL TYPES N T S "A" WEAR COURSE (MNDOT 2360 - SPWEA340B) TACK COAT (MNDOT 2357) "B" BASE COURSE (MNDOT 2360 - SPNWB330B) "C" CLASS 5 AGGREGATE SUBBASE (MNDOT 3138) COMPACTED SUBGRADE (100% OF STANDARD PROCTOR MAX. DRY DENSITY) PAVEMENT DESIGN TYPE WEAR (A)BASE (B)AGG.(C) NOTE: IF NO DESIGN IS DEFINED IN ABOVE CHART, SEE GEOTECH REPORT FOR FINAL PAVEMENT SECTION. IF DESIGN IS DEFINED IN ABOVE CHART, IT SHOULD BE CONSIDERED FOR BIDDING PURPOSES ONLY. REFER TO GEOTECH FOR FINAL PAVEMENT SECTION. 1 LIGHT DUTY X"X"X" HEAVY DUTY X"X"X" PIPE BEDDING - PVC N T S "BC" DENOTES OUTSIDE DIAMETER OF PIPE COARSE FILTER AGG. (MNDOT SPEC. 3149H MODIFIED)MINIMUM 2D+BC+12" D VARIABLE PIPE FOUNDATION & BEDDING IN GOOD SOILS PIPE FOUNDATION & BEDDING IN GOOD SOILS MIN.=BC+12 BC BC "BC" DENOTES OUTSIDE DIAMETER OF PIPE COMPACTED BACKFILL GR A N U L A R B O R R O W (M N D O T S P E C . 3 1 4 9 A MO D I F I E D ) 6" 12 " COMPACTED BACKFILL BE D D I N G FOUNDATION 12 " 6" 9 PIPE BEDDING - RCP & DIP N T S LOAD FACTOR 1.5 CLASS C-1 HAND SHAPED FROM FIRST UNDISTURBED SOIL LOAD FACTOR 1.5 CLASS C-2 HAND SHAPED FROM ANGULAR BEDDING MATERIAL "BC" DENOTES OUTSIDE DIAMETER OF PIPE "BC" DENOTES OUTSIDE DIAMETER OF PIPE "BC" DENOTES OUTSIDE DIAMETER OF PIPE LOAD FACTOR 1.9 CLASS B HAND SHAPED FROM ANGULAR BEDDING MATERIAL LOAD FACTOR 2.3 CLASS A CONCRETE BACKFILL TO 0.5 OF OUTSIDE DIAMETER WITH SHAPED BEDDING. COMPACTED BACKFILL BC / 4 B U T N O T LE S S T H A N 6 " 6" BC 0.5BC BC+12" MIN. COURSE FILTER AGGREGATE MNDOT SPEC. 3149H MOD. COMPACTED BACKFILL "BC" DENOTES OUTSIDE DIAMETER OF PIPE COMPACTED BACKFILL BC 0.5BC BC+12" MIN. 6" BC 0. 5 B C BC / 4 B U T N O T LE S S T H A N 6 " 12 " BC+12" MIN. COURSE FILTER AGGREGATE MNDOT SPEC. 3149H MOD. COMPACTED BACKFILL BC 0. 5 B C 0.5BC BC+12" MIN. 6" 2000# CONCRETE 10 4" PVC DRAIN TILE DETAIL N T S 8" PAVEMENT BASEAGGREGATE BASEMNDOT FINE FILTER AGGREGATE 3149.2J 4" PERFORRATED PVC PER MNDOT 3278 W/ FABRIC SOCK GEOTEXTILE FABRIC MNDOT 3733, TYPE 1 ON SIDES AND BOTTOM ONLY STABILIZED SUBGRADE NOTE: FOR USE WITH CLAY SUBGRADES OR IN AREAS WITH LESS THAN 4 VERTICAL FEET OF FILL IF USING GRANULAR SUBGRADES. 11 DOWNSPOUT TO PIPE CONNECTION N T S VA R I E S BUILDING DOWNSPOUT REFER TO ARCH'L CAP WITH HOLE CUT OUT FOR DOWNSPOUT COMPACTED SOIL 6" PVC SEWER RISER PIPE (LENGTH AS REQUIRED) 6 PVC LONG RADIUS 1 4 BEND SEWER ELBOW 6" PVC SEWER PIPE CRUSHED AND COMPACTED STONE 12 N T S B-612 CURB AND GUTTER CONSTRUCTION AT CATCH BASIN 8' ' 12 ' ' 6' ' CASTING SHALL BE NEENAH R-3067 TYPE L OR APPROVED EQUAL (STANDARD FRAME AND BOX) DIRECTION OF FLOW 36''36'' BACK OF CURB MATCH B-612 CURB AND GUTTER PER DETAIL, TYP.NOTE: CATCH BASIN TO BE DEPRESSED BELOW DESIGN GUTTER GRADE PER DETAIL 110 ON SHEET C5.2 CATCH BASIN FRAME AND COVER CASTING DIRECTION OF FLOW 13 FINISHED GRADENOTES: 1.ALL CONCRETE PVMT. ON-SITE SHALL INCLUDE FIBER REINFORCING - 3 LBS./C.Y. CONC. MACRO-FIBERS PER ASTM C1116 2.INSTALLATION SHALL BE CERTIFIED AND IN ACCORDANCE TO AN ON-SITE A.C.I. TECHNICIAN AS SPECIFIED. 3.SEE GEO-TECHNICAL RECOMMENDATIONS FOR GROSS WEIGHT REQUIREMENTS. 4.SEE LAYOUT DRAWINGS FOR LIMITS OF WALKS. 5.SEE CONCRETE JOINT DETAIL FOR REQUIREMENTS. 6.1/2" WIDE EXPANSION JOINT AND SEALANT AT ALL CURBS. 7.IF NO DESIGN IS DEFINED IN CHART, SEE GEOTECH REPORT FOR FINAL PAVEMENT SECTION. 8.IF DESIGN IS DEFINED IN CHART, IT SHOULD BE CONSIDERED FOR BIDDING PURPOSES ONLY. REFER TO GEOTECH FOR FINAL PAVEMENT SECTION. CONCRETE PVMT./WALK/PAD 3" 2" N T S (PRIVATE PROPERTY) TOOLED CONTROL JOINT, SEE DETAIL (TYP.) LIGHT BROOM FINISH PERPENDICULAR TO TRAFFIC "A" CONCRETE AS SPECIFIED "B" CLASS 5 AGGREGATE BASE COMPACTED SUBGRADE THIS OCCURS ONLY WHERE MULCH MEETS EDGE OF WALK LEAVE TOP OF MULCH DOWN 1" FROM TOP OF WALK PAVEMENT DESIGN TYPE CONC. (A)AGG.(B) 3 LBS. / C.Y. CONC. MACRO-FIBER REINFORCING 1.CURING: 1.1.APPLY CURING COMPOUNDS IMMEDIATELY UPON FINISHING OF CONC. SURFACE. 1.2.ALL CONC. SURFACES SHALL HAVE CURING COMPOUNDS ALLIED PER ASTM C-309. AT 200 S.F. PER GAL. 1.3.ALL CURING COMPOUNDS SHALL BE TYPE 1 (CLEAR) AND CONTAIN ACRYLIC BASED CLASS B RESTRICTED RESIN SOLIDS. 2 WALKS 5"6" CONC. PVMT.6"8" 43 Item 2. COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 48776 David J. Knaeble LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MINNESOTA. 8/05/24 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R C5.2 CIVIL DETAILS REVISION SUMMARY DATE DESCRIPTION 44 Item 2. NO PARKING CONSTRUCTION LIMITS C=22 2 . 8 0 CB=S 7 4 ° 5 9 ' 1 6 " E R=76 6 . 3 5 Δ=16 ° 4 3 ' 0 1 " 223.5 8 S0 0 ° 1 1 ' 4 5 " E 1 4 5 . 3 0 S89°54'47"W 215.00 N0 0 ° 1 1 ' 4 5 " W 2 0 3 . 3 4 (D E S C . = 2 0 3 . 5 6 ) Bituminous Parking Lot Iron Fence Iron Fence Chain Link Fence [A] Chain Link Fence Crosses Property line 8" Sa n i t a r y 8" Sanitary (Per Rec.) 8" S a n i t a r y ( P e r R e c . ) 10" WM (Per Rec.) 10" W M ( P e r R e c . ) 10 " W M ( P e r R e c . ) 6" W M ( P e r R e c . ) Wa t . S e r v . (A Pu b l i c R / W ) 50TH A V E N U E N E PID: 25-30-24-23-0107 Address: 5025 Central Avenue NE Owner: ALDI INC (Minnesota) PID: 25-30-24-23-0029 Address: 1007 50th Avenue NE Owner: Olson Dean M Etal PID: 25-30-24-23-0028 Address: 1035 Polk PL NE Owner: Koponen Trustee, Robert H PID: 25-30-24-23-0027 Address: 1043 Polk PL NE Owner: Sturdevant Joseph A PID: 25-30-24-23-0026 Address: 1051 Polk PL NE Owner: Sanchez Lopez Cristobal R=766.35 90.16 The E Line of the W 230 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The E Line of the W 445 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The Intersection of a Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 A Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 7 - AB2 4 - CM 3 - CM 8 - LR 8 - AB2 5 - PN3 4 - SH3 3 - HJ3 1 - SH 1 - OV2 1 - PD 2 - CV2 2 - GC2.5 2 - GM 2 - QM 2 - AL2 3 - HJ2 3 - HJ2 SOD, TYP. NATIVE SEED MIX DECORATIVE ROCK MULCH, TYP. LANDSCAPE EDGER, TYP. SYMBOL COMMON / BOTANICAL NAME QTY SIZE GROUND COVERS Rock Maintanence Strip / Rock Maintanence Strip 3"- 6" Washed river rock, uniform in size over filter fabric, composed of round rocks that may be varied in color. Include aluminum edging as shown on plan, or as needed. See detail. 784 sf Mulch Blue Grass Based / Sod Commercial grade, locally grown, well rooted sod blend of improved Kentucky Bluegrass w/ uniform color, leaf texture, density and varieties consisting of a minimum of two and no more than four common cultivars. 7,519 sf Sod Shooting Star Seed Mix / Wet Prairie Mix Seeding Rate: 10 lb/acre (100.9 seeds/square foot). Cover w/Straw Erosion control Blanket Double Natural Net. Refer to MN Seeding Manual(2023 Edition) for seeding dates and install methods. 1,889 sf Seed Mix SUBTOTAL:10,192 sf GROUND COVER SCHEDULE L1.0 LANDSCAPE PLAN COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED LANDSCAPE ARCHITECT UNDER THE LAWS OF THE STATE OF MINNESOTA. 25821 Robert L. Binder 8/05/24 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R PROPOSED PERENNIAL PLANT SYMBOLS - SEE PLANT SCHEDULE AND PLAN FOR SPECIES AND PLANTING SIZES PROPOSED DECIDUOUS AND EVERGREEN SHRUB SYMBOLS - SEE PLANT SCHEDULE AND PLAN FOR SPECIES AND PLANTING SIZES PROPOSED ORNAMENTAL TREE SYMBOLS - SEE PLANT SCHEDULE AND PLAN FOR SPECIES AND PLANTING SIZES PROPOSED EVERGREEN TREE SYMBOLS - SEE PLANT SCHEDULE AND PLAN FOR SPECIES AND PLANTING SIZES PROPOSED CANOPY TREE SYMBOLS - SEE PLANT SCHEDULE AND PLAN FOR SPECIES AND PLANTING SIZES LANDSCAPE PLAN LEGEND: EDGING - SHALL BE COMMERCIAL GRADE, 4" DEPTH ALUMINUM, BLACK OR DARK GREEN IN COLOR, INCLUDE ALL CONNECTORS, STAKES, & ALL APPURTENANCES PER MANUF. INSTALL PER MANUF. INSTRUC./SPECS. SEE SHEET L1.1 FOR PLANTING SCHEDULE PLANTING SEASON SCHEDULE SEASON CONIFEROUS DECIDUOUS REMARKS SPRING PLANTING APRIL 15 - JUNE 15 APRIL 15 - JUNE 15 FALL PLANTING AUGUST 21 - SEPTEMBER 30 AUGUST 15 - NOVEMBER 15 NOTE: ADJUSTMENTS TO PLANTING DATES MUST BE APPROVED IN WRITING BY THE LANDSCAPE ARCHITECT. CONSTRUCTION LIMITS REVISION SUMMARY DATE DESCRIPTION 0 1" = 20'-0" 20'-0"10'-0" N Know what's below. before you dig.Call R LANDSCAPE NOTES: MULCH SCHEDULE AREA MULCH TYPE EDGING FABRIC REMARKS TREE RINGS 4" DEPTH, SHREDDED HARDWOOD YES NO SEE DETAIL SHT. L1.1 FOR DETAILS AND LANDSCAPE PLANTING NOTES PLANTING BEDS 4" DEPTH, SHREDDED HARDWOOD YES NO SEE DETAIL SHT. L1.1 FOR DETAILS AND LANDSCAPE PLANTING NOTES MAINT. STRIP AND PARKING ISLANDS WASHED RIVER ROCK YES YES SEE GROUND COVER SCHEDULE SHEET L1.0 AND DETAIL SHT. L1.1 NOTE: COORDINATE ALL MULCH AND PLANTING BED MATERIAL PRIOR TO INSTALLATION, PROVIDE SAMPLES AND SHOP DRAWINGS/PHOTOS/DATA SHEETS OF ALL MATERIALS 1.ALL EXISTING UTILITY LOCATIONS SHOWN ARE APPROXIMATE. CONTACT "GOPHER STATE ONE CALL" (651-454-0002 OR 800-252-1166) FOR UTILITY LOCATIONS, 48 HOURS PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL REPAIR OR REPLACE ANY UTILITIES THAT ARE DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. 2.REFERENCE MULCH SCHEDULE FOR MULCH MATERIALS AND LOCATIONS. 3.ALL TREES SHALL BE MULCHED WITH SHREDDED CEDAR MULCH TO OUTER EDGE OF SAUCER OR TO EDGE OF PLANTING BED, IF APPLICABLE. ALL MULCH SHALL BE KEPT WITHIN A MINIMUM OF 2" FROM TREE TRUNK. 4.IF SHOWN ON PLAN, RANDOM SIZED LIMESTONE BOULDERS COLOR AND SIZE TO COMPLIMENT NEW LANDSCAPING. OWNER TO APPROVE BOULDER SAMPLES PRIOR TO INSTALLATION. 5.PLANT MATERIALS SHALL CONFORM WITH THE AMERICAN ASSOCIATION OF NURSERYMEN STANDARDS AND SHALL BE OF HARDY STOCK, FREE FROM DISEASE, DAMAGE AND DISFIGURATION. CONTRACTOR IS RESPONSIBLE FOR MAINTAINING PLUMPNESS OF PLANT MATERIAL FOR DURATION OF ACCEPTANCE PERIOD. 6.UPON DISCOVERY OF A DISCREPANCY BETWEEN THE QUANTITY OF PLANTS SHOWN ON THE SCHEDULE AND THE QUANTITY SHOWN ON THE PLAN, THE PLAN SHALL GOVERN. 7.CONDITION OF VEGETATION SHALL BE MONITORED BY THE LANDSCAPE ARCHITECT THROUGHOUT THE DURATION OF THE CONTRACT. LANDSCAPE MATERIALS PART OF THE CONTRACT SHALL BE WARRANTED FOR TWO (2) FULL GROWING SEASONS FROM SUBSTANTIAL COMPLETION DATE. 8.ALL AREAS DISTURBED BY CONSTRUCTION ACTIVITIES SHALL RECEIVE 6" LAYER TOPSOIL AND SOD AS SPECIFIED UNLESS OTHERWISE NOTED ON THE DRAWINGS. 9.COORDINATE LOCATION OF VEGETATION WITH UNDERGROUND AND OVERHEAD UTILITIES, LIGHTING FIXTURES, DOORS AND WINDOWS. CONTRACTOR SHALL STAKE IN THE FIELD FINAL LOCATION OF TREES AND SHRUBS FOR REVIEW AND APPROVAL BY THE LANDSCAPE ARCHITECT PRIOR TO INSTALLATION. 10.ALL PLANT MATERIALS SHALL BE WATERED AND MAINTAINED UNTIL ACCEPTANCE. 11.REPAIR AT NO COST TO OWNER ALL DAMAGE RESULTING FROM LANDSCAPE CONTRACTOR'S ACTIVITIES. 12.SWEEP AND MAINTAIN ALL PAVED SURFACES FREE OF DEBRIS GENERATED FROM LANDSCAPE CONTRACTOR'S ACTIVITIES. 13.PROVIDE SITE WIDE IRRIGATION SYSTEM DESIGN AND INSTALLATION. SYSTEM SHALL BE FULLY PROGRAMMABLE AND CAPABLE OF ALTERNATE DATE WATERING. THE SYSTEM SHALL PROVIDE HEAD TO HEAD OR DRIP COVERAGE AND BE CAPABLE OF DELIVERING ONE INCH OF PRECIPITATION PER WEEK. SYSTEM SHALL EXTEND INTO THE PUBLIC RIGHT-OF-WAY TO THE EDGE OF PAVEMENT/BACK OF CURB. 14.CONTRACTOR SHALL SECURE APPROVAL OF PROPOSED IRRIGATION SYSTEM INCLUDING PRICING FROM OWNER, PRIOR TO INSTALLATION. 45 Item 2. CODE COMMON / BOTANICAL NAME QTY CONT NATIVE PLANTS POLLINATOR FRIENDLY 2.5" OVERSTORY TREE GM Sugar Maple / Acer saccharum 'Green Mountain'2 2.5" CAL. B&B NATIVE CULTIVAR Y SH Skyline Thornless Honey Locust / Gleditsia triacanthos inermis `Skycole` TM 1 2.5" Cal. B&B NATIVE CULTIVAR N GC2.5 True North™ Kentucky Coffeetree / Gymnocladus dioica 'UMNSynergy'2 2.5" CAL. B&B NATIVE CULTIVAR N QM Prairie Stature® Oak / Quercus x bimundorum 'Midwest'2 2.5" CAL. B&B SUBTOTAL:7 2" ORNAMENTAL TREE AL2 Spring Flurry Serviceberry / Amelanchier x laevis 'JFS-Arb'2 2" CAL. B&B NATIVE CULTIVAR Y CV2 Thornless Cockspur Hawthorn / Crataegus crus-galli inermis TM 2 2" CAL. B&B NATIVE Y OV2 Ironwood / Ostrya virginiana 1 2" CAL. B&B NATIVE Y SUBTOTAL:5 6` HT. B&B PD Black Hills Spruce / Picea glauca `Densata`1 6` HT. B&B NATIVE CULTIVAR SUBTOTAL:1 CODE COMMON / BOTANICAL NAME QTY SIZE NATIVE PLANTS POLLINATOR FRIENDLY SHRUBS AB2 Low Scape Hedger Black Chokeberry / Aronia melanocarpa 'UCONNAM166' TM 15 #5 CONT NATIVE CULTIVAR Y CM Muskingham Gray Dogwood / Cornus racemosa `Muskingham`7 #5 CONT NATIVE CULTIVAR Y LR Kodiak® Orange Diervilla / Diervilla x 'G2X88544'8 #5 CONT NATIVE CULTIVAR Y HJ2 Kalm St. Johnswort / Hypericum kalmianum 6 #5 CONT NATIVE Y HJ3 Cobalt and Gold Kalm St. Johnswort / Hypericum kalmianum 'PIIHYP-I'3 #2 CONT NATIVE CULTIVAR Y SUBTOTAL:39 GRASSES PN3 Northwind Switch Grass / Panicum virgatum `North Wind`5 #1 CONT NATIVE CULTIVAR Y SH3 Prairie Dropseed / Sporobolus heterolepis 4 #1 CONT NATIVE Y SUBTOTAL:9 PLANT SCHEDULE: TREES, PERENNIAL AND SHRUBS L1.1 LANDSCAPE PLAN NOTES & DETAILS COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED LANDSCAPE ARCHITECT UNDER THE LAWS OF THE STATE OF MINNESOTA. 25821 Robert L. Binder 8/05/24 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R 1.ENTIRE SITE SHALL BE FULLY IRRIGATED. THE CONTRACTOR SHALL SUBMIT IRRIGATION SHOP DRAWINGS FOR REVIEW AND APPROVAL BY THE LANDSCAPE ARCHITECT PRIOR TO INSTALLATION. 2.PROVIDE SITE WIDE IRRIGATION SYSTEM DESIGN AND INSTALLATION. SYSTEM SHALL BE FULLY PROGRAMMABLE AND CAPABLE OF ALTERNATE DATE WATERING. THE SYSTEM SHALL PROVIDE HEAD TO HEAD OR DRIP COVERAGE AND BE CAPABLE OF DELIVERING ONE INCH OF PRECIPITATION PER WEEK. SYSTEM SHALL EXTEND INTO THE PUBLIC RIGHT-OF-WAY TO THE EDGE OF PAVEMENT/BACK OF CURB. 3.CONTRACTOR SHALL SECURE APPROVAL OF PROPOSED IRRIGATION SYSTEM INLCUDING PRICING FROM OWNER, PRIOR TO INSTALLATION. 4.SEE MECHANICAL AND ELECTRICAL PLANS AND SPECIFICATIONS FOR IRRIGATION WATER, METER, AND POWER CONNECTIONS. 5.CONTRACTOR TO VERIFY LOCATION OF ALL UNDERGROUND/ABOVE GROUND FACILITIES PRIOR TO ANY EXCAVATION/INSTALLATION. ANY DAMAGE TO UNDERGROUND/ABOVE GROUND FACILITIES SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR AND COSTS ASSOCIATED WITH CORRECTING DAMAGES SHALL BE BORNE ENTIRELY BY THE CONTRACTOR. 6.SERVICE EQUIPMENT AND INSTALLATION SHALL BE PER LOCAL UTILITY COMPANY STANDARDS AND SHALL BE PER NATIONAL AND LOCAL CODES. EXACT LOCATION OF SERVICE EQUIPMENT SHALL BE COORDINATED WITH THE LANDSCAPE ARCHITECT OR EQUIVALENT AT THE JOB SITE. 7.CONTRACTOR SHALL COORDINATE WITH LOCAL UTILITY COMPANY FOR THE PROPOSED ELECTRICAL SERVICE AND METERING FACILITIES. 8.IRRIGATION WATER LINE CONNECTION SIZE IS 1-12" AT BUILDING. VERIFY WITH MECHANICAL PLANS. 9.ALL MAIN LINES SHALL BE 18" BELOW FINISHED GRADE. 10.ALL LATERAL LINES SHALL BE 12" BELLOW FINISHED GRADE. 11.ALL EXPOSED PVC RISERS, IF ANY, SHALL BE GRAY IN COLOR. 12.CONTRACTOR SHALL LAY ALL SLEEVES AND CONDUIT AT 2'-0" BELOW THE FINISHED GRADE OF THE TOP OF PAVEMENT. EXTEND SLEEVES TO 2'-0" BEYOND PAVEMENT. 13.CONTRACTOR SHALL MARK THE LOCATION OF ALL SLEEVES AND CONDUIT WITH THE SLEEVING MATERIAL "ELLED" TO 2'-0" ABOVE FINISHED GRADE AND CAPPED. 14.FABRICATE ALL PIPE TO MANUFACTURE'S SPECIFICATIONS WITH CLEAN AND SQUARE CUT JOINTS. USE QUALITY GRADE PRIMER AND SOLVENT CEMENT FORMULATED FOR INTENDED TYPE OF CONNECTION. 15.BACKFILL ALL TRENCHES WITH SOIL FREE OF SHARP OBJECTS AND DEBRIS. 16.ALL VALVE BOXES AND COVERS SHALL BE BLACK IN COLOR. 17.GROUP VALVE BOXES TOGETHER FOR EASE WHEN SERVICE IS REQUIRED. LOCATE IN PLANT BED AREAS WHENEVER POSSIBLE. 18.IRRIGATION CONTROLLER LOCATION SHALL BE VERIFIED ON-SITE WITH OWNER'S REPRESENTATIVE. 19.CONTROL WIRES: 14 GAUGE DIRECT BURIAL, SOLID COPPER IRRIGATION WIRE. RUN UNDER MAIN LINE. USE MOISTURE-PROOF SPLICES AND SPLICE ONLY AT VALVES OR PULL BOXES. RUN SEPARATE HOT AND COMMON WIRE TO EACH VALVE AND ONE (1) SPARE WIRE AND GROUND TO FURTHEST VALVE FROM CONTROLLER. LABEL OR COLOR CODE ALL WIRES. 20.AVOID OVER SPRAY ON BUILDINGS, PAVEMENT, WALLS AND ROADWAYS BY INDIVIDUALLY ADJUSTING RADIUS OR ARC ON SPRINKLER HEADS AND FLOW CONTROL ON AUTOMATIC VALVE. 21.ADJUST PRESSURE REGULATING VALVES FOR OPTIMUM PRESSURE ON SITE. 22.USE SCREENS ON ALL HEADS. 23.A SET OF AS-BUILT DRAWINGS SHALL BE MAINTAINED ON-SITE AT ALL TIMES IN AN UPDATED CONDITION. 24.ALL PIPE 3" AND OVER SHALL HAVE THRUST BLOCKING AT EACH TURN. 25.ALL AUTOMATIC REMOTE CONTROL VALVES WILL HAVE 3" MINIMUM DEPTH OF 3/4" WASHED GRAVEL UNDERNEATH VALVE AND VALVE BOX. GRAVEL SHALL EXTENT 3" BEYOND PERIMETER OF VALVE BOX. 26.THERE SHALL BE 3" MINIMUM SPACE BETWEEN BOTTOM OF VALVE BOX COVER AND TOP OF VALVE STRUCTURE. IRRIGATION NOTES: REVISION SUMMARY DATE DESCRIPTION SEE SHEET L1.0 FOR GENERAL LANDSCAPE NOTES & LEGEND Know what's below. before you dig.Call R DRAWN @ ? size PERENNIAL BED PLANTING N T S PLANT TOP OF ROOTBALL 1-2" ABOVE ABOVE SURROUNDING GRADE ROOTS AT OUTER EDGE OF ROOTBALL LOOSENED TO ENSURE PROPER BACKFILL-TO-ROOT CONTACT SLOPE SIDES OF HOLE OR VERTICAL SIDES AT EDGE OF PLANTING BED EXISTING GRADE ROCK OR ORGANIC MULCH, SEE GENERAL LANDSCAPE NOTES AND PLAN NOTES FOR MULCH TYPE. KEEP MULCH MIN. 2" FROM PLANT STEM BACKFILL AS PER SPECIFICATION DO NOT EXCAVATE BELOW ROOTBALL. SIZE VARIES SEE LANDSCAPE PLAN MODIFY EXCAVATION BASED ON LOCATION OF PLANT MATERIAL AND DESIGN OF BEDS OR OVERALL PLANT PLACEMENT 2 DECIDUOUS & CONIFEROUS SHRUB PLANTING N T S PRUNE AS FIELD DIRECTED BY THE LANDSCAPE ARCHITECT TO IMPROVE APPEARANCE (RETAIN NORMAL SHAPE FOR SPECIES) PLANT TOP OF ROOTBALL 1-2" ABOVE ABOVE SURROUNDING GRADE ROOTS AT OUTER EDGE OF ROOTBALL LOOSENED TO ENSURE PROPER BACKFILL-TO-ROOT CONTACT SLOPE SIDES OF HOLE OR VERTICAL SIDES AT EDGE OF PLANTING BED EXISTING GRADE ROCK OR ORGANIC MULCH, SEE GENERAL LANDSCAPE NOTES AND PLAN NOTES FOR MULCH TYPE. KEEP MULCH MIN. 2" FROM PLANT TRUNK BACKFILL AS PER SPECIFICATION DO NOT EXCAVATE BELOW ROOTBALL. THREE TIMES WIDTH OF ROOTBALL RULE OF THUMB - MODIFY EXCAVATION BASED ON LOCATION OF PLANT MATERIAL AND DESIGN OF BEDS OR OVERALL PLANT PLACEMENT 3 FINISHED GRADE 18" - VERIFY W/ PLAN DRAWN @ ? size AGGREGATE MAINTENANCE STRIP N T S SLOPE - MIN. 2%, MAX. 5:1 VERIFY W/ GRADING PLAN FACE OF BUILDING, WALL, OR STRUCTURE MIN. 3" LAYER OF ROCK MULCH AS SPECIFIED. PROVIDE SAMPLE TO LANDSCAPE ARCHITECT FOR APPROVAL PRIOR TO INSTALLATION STAKED LANDSCAPE EDGER AS SPECIFIED, SEE MANUFACTURER'S INSTRUCTIONS AND SPECS. FOR INSTALLATION AND PLACEMENT WATER PERMEABLE GEOTEXTILE FABRIC AS SPECIFIED COMPACTED SUBGRADE 1 THREE TIMES WIDTH OF ROOTBALL DECIDUOUS & CONIFEROUS TREE PLANTING N T S PRUNE AS FIELD DIRECTED BY THE LANDSCAPE ARCHITECT TO IMPROVE APPEARANCE (RETAIN NORMAL TREE SHAPE) THREE 2"X4"X8' WOODEN STAKES, STAINED BROWN WITH TWO STRANDS OF WIRE TWISTED TOGETHER. STAKES SHALL BE PLACED AT 120° TO ONE ANOTHER. WIRE SHALL BE THREADED THROUGH NYLON STRAPPING WITH GROMMETS. ALTERNATE STABILIZING METHODS MAY BE PROPOSED BY CONTRACTOR. TRUNK FLARE JUNCTION: PLANT TREE 1"-2" ABOVE EXISTING GRADE MULCH TO OUTER EDGE OF SAUCER OR TO EDGE OF PLANTING BED, IF APPLICABLE. ROCK OR ORGANIC MULCH, SEE GENERAL LANDSCAPE NOTES AND PLAN NOTES FOR MULCH TYPE. KEEP MULCH MIN. 2" FROM PLANT TRUNK EXISTING GRADE CUT AND REMOVE BURLAP FROM TOP 1/3 OF ROOT BALL. IF NON-BIODEGRADABLE, REMOVE COMPLETELY SLOPE SIDES OF HOLE OR VERTICAL SIDES AT EDGE OF PLANTING BED BACKFILL AS SPECIFIED COMPACT BOTTOM OF PIT, TYP. RULE OF THUMB - MODIFY EXCAVATION BASED ON LOCATION OF PLANT MATERIAL AND DESIGN OF BEDS OR OVERALL PLANT PLACEMENT 4 LANDSCAPE PLANTING NOTES: 1.SEE PLANTING SEASON SCHEDULE FOR PLANT INSTALLATION DATES. IF PLANT MATERIAL ARE INSTALLED OUTSIDE OF THOSE TIME PERIODS, CONTRACTOR MUST PROVIDE AND ADDITIONAL SPRING SEASON OF WARRANTY BEYOND THE STANDARD 1 YEAR MATERIAL & INSTALLATION WARRANTY SPECIFIED BY CONTRACT 2.PLANT MATERIAL SHALL COMPLY WITH THE CURRENT EDITION OF THE AMERICAN STANDARD FOR NURSERY STOCK, ANSI Z60.1. UNLESS NOTED OTHERWISE, DECIDUOUS SHRUBS SHALL HAVE AT LEAST 5 CANES AT THE SPECIFIED HEIGHT. ORNAMENTAL TREES SHALL HAVE NO 'V' CROTCHES AND SHALL BEGIN BRANCHING NO LOWER THAN 3' FEET ABOVE THE ROOT BALL. STREET AND BOULEVARD TREES SHALL BEGIN BRANCHING NO LOWER THAN 6' ABOVE PAVED SURFACE. 3.STAKE PROPOSED PLANTING LOCATIONS PER PLAN FOR REVIEW AND APPROVAL BY LANDSCAPE ARCHITECT PRIOR TO INSTALL 4.COORDINATE INSTALLATION OF PLANT MATERIAL WITH GENERAL CONTRACTOR. 5.SEE PLANTING DETAILS FOR INSTALLATION OF PLANT MATERIAL 6.SUBSTITUTION REQUESTS FOR PLANT MATERIAL TYPE & SIZE SHALL BE SUBMITTED TO THE LANDSCAPE ARCHITECT FOR CONSIDERATION PRIOR TO INSTALLATION. 7.MINOR, ON-SITE ADJUSTMENTS IN LOCATION OF PROPOSED PLANT MATERIALS MAY BE NEEDED IN FIELD. MORE SUBSTANTIAL ADJUSTMENTS MUST BE REVIEWED AND APPROVED BY LANDSCAPE ARCHITECT PRIOR TO INSTALLATION. 8.FERTILIZE PLANT MATERIAL UPON INSTALLATION WITH MNDOT 3881-B4 TYPE 4 FERTILIZER MIXED IN WITH THE PLANTING SOIL (PER THE MANUFACTURER'S INSTRUCTIONS) OR TREAT FOR SUMMER AND FALL INSTALLATION WITH AN APPLICATION OF GRANULAR 10-0-5 OF 12 OZ. PER 2.5" CALIPER TREE AND 6 OZ. PER SHRUB WITH AN ADDITIONAL APPLICATION OF 10-0-10 THE FOLLOWING SPRING IN THE TREE SAUCER. 9.INSTALL 12" DEPTH OF PLANTING SOIL IN AREAS RECEIVING GROUND COVER, PERENNIALS, AND ANNUALS. PLANTING SOIL SHALL CONSIST OF MNDOT 3877-B MODIFIED TO CONTAIN A MAXIMUM OF 30% SAND, A PH OF 7.1 MAX, OR AS OTHERWISE SPECIFIED IN THE PROJECT SPECIFICATIONS MANUAL. AMEND THE TOPSOIL WITH 4 INCHES OF MNDOT 3890 - B GRADE 2 COMPOST. 10.PROVIDE TREE TRUNK DAMAGE PROTECTION FOR SMOOTH-BARKED DECIDUOUS TREES PLANTED IN THE FALL PRIOR TO DECEMBER 1. REMOVE WRAPPING AFTER MAY THE NEXT SPRING. WRAPPING MATERIAL SHALL BE TWO-WALLED PLASTIC SHEETING APPLIED FROM TRUNK FLARE TO FIRST BRANCH. 11.PRIOR TO PLANTING, APPLY PRE-EMERGENT HERBICIDE (PREEN OR APPROVED EQUAL) IN ANNUAL, PERENNIAL, AND SHRUB BEDS FOLLOWED BY MULCH AS SPECIFIED. 12.WHERE SHOWN, SHRUB & PERENNIAL BEDS SHALL BE MULCHED PER SCHEDULE(S) 13.ALL TREES SHALL BE MULCHED WITH MNDOT 3882 - E TYPE 6 MULCH TO OUTER EDGE OF SAUCER OR TO EDGE OF PLANTING BED, IF APPLICABLE. ALL MULCH SHALL BE KEPT WITHIN A MINIMUM OF 4" FROM TREE TRUNK. SEE MULCH SCHEDULE. 14.PLANT MATERIALS SHALL CONFORM WITH THE AMERICAN ASSOCIATION OF NURSERYMEN STANDARDS AND SHALL BE OF HARDY STOCK, FREE FROM DISEASE, DAMAGE AND DISFIGURATION. CONTRACTOR IS RESPONSIBLE FOR MAINTAINING PLUMPNESS OF PLANT MATERIAL FOR DURATION OF ACCEPTANCE PERIOD. 15.UPON DISCOVERY OF A DISCREPANCY BETWEEN THE QUANTITY OF PLANTS SHOWN ON THE SCHEDULE AND THE QUANTITY SHOWN ON THE PLAN, THE PLAN SHALL GOVERN. 16.CONDITION OF VEGETATION SHALL BE MONITORED BY THE LANDSCAPE ARCHITECT THROUGHOUT THE DURATION OF THE CONTRACT. LANDSCAPE MATERIALS PART OF THE CONTRACT SHALL BE WARRANTED FOR ONE (1) FULL GROWING SEASONS FROM SUBSTANTIAL COMPLETION DATE. 17.ALL AREAS DISTURBED BY CONSTRUCTION ACTIVITIES SHALL RECEIVE MIN. 6" LAYER MNDOT 3877-A COMMON TOPSOIL BORROW. IF NOT SPECIFICED ON PLAN, INCLUDE SOD OR SEED (TO MATCH SURROUNDING AND/OR ADJACENT GROUND COVERING). 18.COORDINATE LOCATION OF VEGETATION WITH UNDERGROUND AND OVERHEAD UTILITIES, LIGHTING FIXTURES, DOORS AND WINDOWS. CONTRACTOR SHALL STAKE IN THE FIELD FINAL LOCATION OF TREES AND SHRUBS FOR REVIEW AND APPROVAL BY THE LANDSCAPE ARCHITECT PRIOR TO INSTALLATION. 19.ALL PLANT MATERIALS SHALL BE WATERED AND MAINTAINED UNTIL ACCEPTANCE. 20.REPAIR AT NO COST TO OWNER ALL DAMAGE RESULTING FROM LANDSCAPE CONTRACTOR'S ACTIVITIES. 21.SWEEP AND MAINTAIN ALL PAVED SURFACES FREE OF DEBRIS GENERATED FROM LANDSCAPE CONTRACTOR'S ACTIVITIES. 46 Item 2. CONSTRUCTION LIMITS C=22 2 . 8 0 CB=S 7 4 ° 5 9 ' 1 6 " E R=76 6 . 3 5 Δ=16 ° 4 3 ' 0 1 " 223.5 8 S0 0 ° 1 1 ' 4 5 " E 1 4 5 . 3 0 S89°54'47"W 215.00 N0 0 ° 1 1 ' 4 5 " W 2 0 3 . 3 4 (D E S C . = 2 0 3 . 5 6 ) Concrete Walkway Concrete Walkway Concrete Concrete Walkway Concrete Walkway Co n c r e t e W a l k w a y Concrete Steps Concrete StepsConcrete Steps Concrete Steps Concrete S i d e w a l k Access Bituminous Parking Lot Bituminous Parking Lot Stone Retaining Wall Brick Wall Stone Retaining Wall Concrete Retaining Wall Concrete Retaining Wall Bituminous Parking Lot Concrete Retaining Wall Iron Fence Iron Fence Monument Sign Railing Railing 2 Story Brick Building Foundation Area = 6,341 +/- Sq. Ft. Chain Link Fence [A] Chain Link Fence Crosses Property line Existing Building 12" HDPE 1 2 " H D P E Overhang 38.1 7. 9 18.6 4 . 1 6.8 4 . 2 6.7 4 . 2 4.9 72 . 0 27.0 10 . 9 4 . 2 6.8 4 . 2 6.7 4 . 3 41.9 5 . 3 35 . 6 11.0 29 . 6 8" Sa n i t a r y 8" Sanitary (Per Rec.) 8" S a n i t a r y ( P e r R e c . ) 10" WM (Per Rec.) 10" W M ( P e r R e c . ) 10 " W M ( P e r R e c . ) 6" W M ( P e r R e c . ) Wa t . S e r v . (A Pu b l i c R / W ) 50TH A V E N U E N E P.O.B. Found 1/2 Inch Open Iron Pipe Found 1/2 Inch Iron Pipe W/ Cap No. 5065 Found 1/2 Inch Iron Pipe W/ Cap No. 5065 PID: 25-30-24-23-0002 Address: 999 50th Avenue NE PID: 25-30-24-23-0107 Address: 5025 Central Avenue NE Owner: ALDI INC (Minnesota) PID: 25-30-24-23-0029 Address: 1007 50th Avenue NE Owner: Olson Dean M Etal PID: 25-30-24-23-0028 Address: 1035 Polk PL NE Owner: Koponen Trustee, Robert H PID: 25-30-24-23-0027 Address: 1043 Polk PL NE Owner: Sturdevant Joseph A PID: 25-30-24-23-0026 Address: 1051 Polk PL NE Owner: Sanchez Lopez Cristobal 5 11 1 11 18 R=766.35 90.16 The E Line of the W 230 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The E Line of the W 445 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The Intersection of a Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 12" PVC 4" DT 12" PVC (Per Rec.) 12" PVC A Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 CONSTRUCTION ENTRANCE CONTRACTOR TO PROVIDE INLET PROTECTION AT ALL DOWNSTREAM CATCH BASINS. PERIMETER EROSION CONTROL AT CONSTRUCTION LIMITS, TYP. INLET PROTECTION AT EXISTING CATCH BASIN BEING REMOVED, TYP. PERIMETER EROSION CONTROL AT CONSTRUCTION LIMITS, TYP. COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 48776 David J. Knaeble LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MINNESOTA. 8/05/24 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R SW1.0 SWPPP - EXISTING CONDITIONS SWPPP LEGEND: EX. 1' CONTOUR ELEVATION INTERVAL INLET PROTECTION STABILIZED CONSTRUCTION ENTRANCE DRAINAGE ARROW SILT FENCE / BIOROLL - GRADING LIMIT 1125 ALL SPECIFIED EROSION AND SEDIMENT CONTROL PRACTICES, AND MEASURES CONTAINED IN THIS SWPPP ARE THE MINIMUM REQUIREMENTS. ADDITIONAL PRACTICES MAY BE REQUIRED DURING THE COURSE OF CONSTRUCTION. REVISION SUMMARY DATE DESCRIPTION 1.ALL EXISTING UTILITY LOCATIONS SHOWN ARE APPROXIMATE. CONTACT "GOPHER STATE ONE CALL" (651-454-0002 OR 800-252-1166) FOR UTILITY LOCATIONS, 48 HOURS PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL REPAIR OR REPLACE ANY UTILITIES THAT ARE DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. 2.THIS PROJECT IS LESS THAN ONE ACRE AND WILL NOT REQUIRE AN MPCA NPDES PERMIT. CONTRACTOR IS RESPONSIBLE FOR OBTAINING ANY EROSION CONTROL PERMITS REQUIRED BY THE CITY. 3.SEE SHEETS SW1.0 - SW1.3 FOR ALL EROSION CONTROL NOTES, DESCRIPTIONS, AND PRACTICES. 4.SEE GRADING PLAN FOR ADDITIONAL GRADING AND EROSION CONTROL NOTES. 5.CONTRACTOR IS RESPONSIBLE FOR SWPPP IMPLEMENTATION, INSPECTIONS, AND COMPLIANCE WITH NPDES PERMIT. SWPPP NOTES: 0 1" = 20'-0" 20'-0"10'-0" N Know what's below. before you dig.Call R 47 Item 2. NO PARKING RATE CONTROL BASIN 1 CONSTRUCTION LIMITS C=22 2 . 8 0 CB=S 7 4 ° 5 9 ' 1 6 " E R=76 6 . 3 5 Δ=16 ° 4 3 ' 0 1 " 223.5 8 S0 0 ° 1 1 ' 4 5 " E 1 4 5 . 3 0 S89°54'47"W 215.00 N0 0 ° 1 1 ' 4 5 " W 2 0 3 . 3 4 (D E S C . = 2 0 3 . 5 6 ) Bituminous Parking Lot Iron Fence Iron Fence Chain Link Fence [A] Chain Link Fence Crosses Property line 8" Sa n i t a r y 8" Sanitary (Per Rec.) 8" S a n i t a r y ( P e r R e c . ) 10" WM (Per Rec.) 10" W M ( P e r R e c . ) 10 " W M ( P e r R e c . ) 6" W M ( P e r R e c . ) Wa t . S e r v . (A Pu b l i c R / W ) 50TH A V E N U E N E PID: 25-30-24-23-0107 Address: 5025 Central Avenue NE Owner: ALDI INC (Minnesota) PID: 25-30-24-23-0029 Address: 1007 50th Avenue NE Owner: Olson Dean M Etal PID: 25-30-24-23-0028 Address: 1035 Polk PL NE Owner: Koponen Trustee, Robert H PID: 25-30-24-23-0027 Address: 1043 Polk PL NE Owner: Sturdevant Joseph A PID: 25-30-24-23-0026 Address: 1051 Polk PL NE Owner: Sanchez Lopez Cristobal R=766.35 90.16 The E Line of the W 230 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The E Line of the W 445 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The Intersection of a Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 A Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 EOF= 932.37 EOF= 931.35 CONSTRUCTION ENTRANCE CONTRACTOR TO PROVIDE INLET PROTECTION AT ALL DOWNSTREAM CATCH BASINS. PERIMETER EROSION CONTROL AT CONSTRUCTION LIMITS, TYP. PLACE EROSION CONTROL BLANKET ON ALL SLOPES 4:1 OR STEEPER, TYP. (MNDOT CATEGORY 3) PERIMETER EROSION CONTROL AT CONSTRUCTION LIMITS, TYP. INLET PROTECTION AT PROPOSED CATCH BASIN, TYP PLACE EROSION CONTROL BLANKET ON ALL SLOPES 4:1 OR STEEPER, TYP. (MNDOT CATEGORY 3) PLACE EROSION CONTROL BLANKET ON ALL SLOPES 4:1 OR STEEPER, TYP. (MNDOT CATEGORY 3) COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 48776 David J. Knaeble LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MINNESOTA. 8/05/24 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R SW1.1 SWPPP - PROPOSED CONDITIONS 1. RESERVED FOR CITY SPECIFIC EROSION CONTROL NOTES. CITY OF COLUMBIA HEIGHTS EROSION CONTROL NOTES: SWPPP LEGEND: INLET PROTECTION STABILIZED CONSTRUCTION ENTRANCE DRAINAGE ARROW 1.0' CONTOUR ELEVATION INTERVAL SILT FENCE / BIOROLL - GRADING LIMIT EROSION CONTROL BLANKET 1137 REVISION SUMMARY DATE DESCRIPTION 1.ALL EXISTING UTILITY LOCATIONS SHOWN ARE APPROXIMATE. CONTACT "GOPHER STATE ONE CALL" (651-454-0002 OR 800-252-1166) FOR UTILITY LOCATIONS, 48 HOURS PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL REPAIR OR REPLACE ANY UTILITIES THAT ARE DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. 2.THIS PROJECT IS LESS THAN ONE ACRE AND WILL NOT REQUIRE AN MPCA NPDES PERMIT. CONTRACTOR IS RESPONSIBLE FOR OBTAINING ANY EROSION CONTROL PERMITS REQUIRED BY THE CITY. 3.SEE SHEETS SW1.0 - SW1.3 FOR ALL EROSION CONTROL NOTES, DESCRIPTIONS, AND PRACTICES. 4.SEE GRADING PLAN FOR ADDITIONAL GRADING AND EROSION CONTROL NOTES. 5.CONTRACTOR IS RESPONSIBLE FOR SWPPP IMPLEMENTATION, INSPECTIONS, AND COMPLIANCE WITH NPDES PERMIT. SWPPP NOTES: ALL SPECIFIED EROSION AND SEDIMENT CONTROL PRACTICES, AND MEASURES CONTAINED IN THIS SWPPP ARE THE MINIMUM REQUIREMENTS. ADDITIONAL PRACTICES MAY BE REQUIRED DURING THE COURSE OF CONSTRUCTION. EX. 1' CONTOUR ELEVATION INTERVAL1125 0 1" = 20'-0" 20'-0"10'-0" N Know what's below. before you dig.Call R 48 Item 2. COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 48776 David J. Knaeble LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MINNESOTA. 8/05/24 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R SW1.2 SWPPP - DETAILS REVISION SUMMARY DATE DESCRIPTION NOTES: 1. REPLACE INLET GRATE UPON COMPLETE INSTALLATION OF INLET PROTECTION FABRIC. 2. CONTRACTOR SHALL REMOVE ALL ACCUMULATED SEDIMENT AND DEBRIS FROM THE SURFACE OF THE SYSTEM AFTER EACH STORM EVENT AND AT THE COMPLETION OF THE CONTRACT. 3. CONTRACTOR SHALL USE DANDY SACK OR APPROVED EQUIVALENT FOR STRUCTURES WITHOUT CURBING. CURB INLET SACK N T S OVERFLOW IS 12 OF THE CURB BOX HEIGHT OVERFLOW AT TOP OF FILTER ASSEMBLY EXISTING CURB, PLATE, BOX, AND GRATE DANDY CURB SACK OR APPROVED EQUIVALENT HIGH-FLOW FABRIC 1 DIRECTION OF FLOW 24 " 24 " 24 " MI N . 6" 6" SEDIMENT FENCE N T S FILTER FABRIC WITH WIRE SUPPORT NET AS SPECIFIED. METAL POST AS SPECIFIED. SUPPORT NET: 12 GAUGE 4"X4" WIRE HOOKED ONTO PERFORMED CHANNELS ON POSTS AS SPECIFIED. EXISTING GROUND SURFACE METAL POSTS 8'-0" O.C. MAX. CARRY WIRE SUPPORT NET DOWN INTO TRENCH ANCHOR FABRIC WITH SOIL, TAMP BACKFILL FILTER FABRIC AS SPECIFIED SECURE TO WIRE SUPPORT NET WITH METAL CLIPS 12" O.C. 2 TYPICAL STAPLE #8 GAUGE WIRE 1 1/2" 10 " NOTE: 1. PLACE STAPLES 2 FEET APART TO KEEP MATTING FIRMLY PRESSED TO SOIL. EROSION BLANKET N T S PLACE STAPLES 2 FEET APART TO KEEP MATTING FIRMLY PRESSED TO SOIL. 'D' EROSION STOP: FOLD OF MATTING BURIED IN SILT TRENCH AND TAMPED. DOUBLE ROW OF STAPLES 'C' OVERLAP: BURY UPPER END OF LOWER STRIP AS IN 'A' AND 'B'. OVERLAP END OF TOP STRIP 4" AND STAPLE 'B' TAMP THE TRENCH FULL OF SOIL. SECURE WITH ROW OF STAPLES, 10" SPACING, 4" DOWN FROM TRENCH 'A' BURY THE TOP END OF THE MATTING IN A TRENCH 4" OR MORE IN DEPTH 'E' OVERFALL 3 PROFILE PLAN TO CONSTRUCTION AREA N T S STABILIZED CONSTRUCTION ACCESS 24 ' ( M I N ) NOTES: 1.PROVIDE APPROPRIATE TRANSITION BETWEEN STABILIZED CONSTRUCTION ENTRANCE AND UNDISTURBED ROADWAY. 2.THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKING OR FLOWING OF SEDIMENT ONTO UNDISTURBED ROADWAY. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH ADDITIONAL STONE OR ADDING STONE TO THE LENGTH OF THE ENTRANCE. 3.REPAIR AND CLEANOUT MEASURES USED TO TRAP SEDIMENT. 4.ALL SEDIMENT SPILLED, DROPPED, WASHED, OR TRACKED ONTO UNDISTURBED ROADWAY SHALL BE REMOVED AS DIRECTED BY THE ENGINEER. 5.FINAL LOCATION AND INSTALLATION SHALL BE COORDINATED WITH THE CITY PRIOR TO CONSTRUCTION ACTIVITIES. 6.CRUSHED STONE SHALL BE 1-1/2" DIA. CLOSE GRADED, AND IN ACCORDANCE TO MNDOT SECTION 2118. EX I S T I N G U N D I S T U R B E D R O A D W A Y GEOTEXTILE FILTER FABRIC 6" MIN. CRUSHED STONE 75' MINIMUM EXISTING UNDISTURBED ROADWAY TO C O N S T R U C T I O N A R E A 30' FROM EDGE OF ROAD TO FRONT OF SPEED BUMP 35 ' R . 3 5 ' R . 4" HIGH, 18" WIDE SPEED BUMPFINISHED GRADE 4 DIRECTION OF FLOW SEDIMENT BIO-ROLL / COMPOST FILTER LOG N T S NOTE: 1. COMPOST FILTER LOGS (BIO ROLLS) SHALL BE FILTREXX EROSION CONTROL SOXX OR APPROVED EQUAL. 2. COMPOST FILLER TO BE MADE FROM A COMPOST BLEND 30%-40% GRADE 2 (SPEC 3890) AND 60%-70% PARTIALLY DECOMPOSED WOOD CHIPS, PER MNDOT SPEC 3897. 3. FILTER FABRIC SHALL BE GEOTEXTILE KNITTED MATERIAL WITH MAX. OPENINGS OF 3/8". 4. IF MULTIPLE ROLLS NEEDED, OVERLAP BY MIN. 12" AT ENDS AND STAKE. 5. SILT SHALL BE REMOVED ONCE IT REACHES 80% OF THE HEIGHT OF THE ROLL OR AS DEEMED NECESSARY BY SITE CONTRACTOR TO MAINTAIN PROPER FUNCTION. 8" M I N . EXISTING GROUND SURFACE WOODEN STAKES 1/2"X2"X16" MIN. PLACED 10' O.C. WHEN INSTALLED ON GROUND. IF INSTALLED ON PVMT. PROVIDE SANDBAGS BEHIND AND ON TOP AT MIN. 10' O.C. FILTER FABRIC AS SPECIFIED FILLER AS SPECIFIED FILL UPSTREAM BASE EDGE WITH 2" OF DIRT OR COMPOST TO EMBED ROLL. 5 49 Item 2. SW1.3 SWPPP - NARRATIVE OWNER INFORMATIONTRAINING SECTION 21 PARTY RESPONSIBLE FOR LONG TERM OPERATION AND MAINTENANCE OF PERMANENT STORM WATER MANAGEMENT SYSTEM PERMANENT STORMWATER MANAGEMENT IS NOT REQUIRED AS PART OF THIS PROJECT TO MEET NPDES PERMIT REQUIREMENTS. AREAS AND QUANTITIES: SWPPP CONTACT PERSON CONTRACTOR:SWPPP INSPECTOR TRAINING: ALL SWPPP INSPECTIONS MUST BE PERFORMED BY A PERSON THAT MEETS THE TRAINING REQUIREMENTS OF THE NPDES CONSTRUCTION SITE PERMIT. TRAINING CREDENTIALS SHALL BE PROVIDED BY THE CONTRACTOR AND KEPT ON SITE WITH THE SWPPP NOTE: QUANTITIES ARE FOR INFORMATIONAL PURPOSES ONLY. CONTRACTOR SHALL DETERMINE FOR THEMSELVES THE EXACT QUANTITIES FOR BIDDING AND CONSTRUCTION. SUPPLEMENTARY SITE SPECIFIC EROSION CONTROL NOTES: THESE NOTES SUPERCEDE ANY GENERAL SWPPP NOTES. SWPPP ATTACHMENTS (ONLY APPLICABLE IF SITE IS 1 ACRE OR GREATER): NA THE CONTRACTOR AND ALL SUBCONTRACTORS INVOLVED WITH A CONSTRUCTION ACTIVITY THAT DISTURBS SITE SOIL OR WHO IMPLEMENT A POLLUTANT CONTROL MEASURE IDENTIFIED IN THE STORM WATER POLLUTION PREVENTION PLAN (SWPPP) MUST COMPLY WITH THE REQUIREMENTS OF THE NATIONAL POLLUTION DISCHARGE ELIMINATION SYSTEM (NPDES) GENERAL PERMIT (DATED AUGUST 1, 2018 # MNR100001) AND ANY LOCAL GOVERNING AGENCY HAVING JURISDICTION CONCERNING EROSION AND SEDIMENTATION CONTROL. STORMWATER DISCHARGE DESIGN REQUIREMENTS SWPPP THE NATURE OF THIS PROJECT WILL BE CONSISTENT WITH WHAT IS REPRESENTED IN THIS SET OF CONSTRUCTION PLANS AND SPECIFICATIONS. SEE THE SWPPP PLAN SHEETS AND SWPPP NARRATIVE (ATTACHMENT A: CONSTRUCTION SWPPP TEMPLATE) FOR ADDITIONAL SITE SPECIFIC SWPPP INFORMATION. THE PLANS SHOW LOCATIONS AND TYPES OF ALL TEMPORARY AND PERMANENT EROSION PREVENTION AND SEDIMENT CONTROL BMP'S. STANDARD DETAILS ARE ATTACHED TO THIS SWPPP DOCUMENT. THE INTENDED SEQUENCING OF MAJOR CONSTRUCTION ACTIVITIES IS AS FOLLOWS: 1. INSTALL STABILIZED ROCK CONSTRUCTION ENTRANCE 2. INSTALLATION OF SILT FENCE AROUND SITE 3. INSTALL ORANGE CONSTRUCTION FENCING AROUND INFILTRATION AREAS 4. INSTALL INLET PROTECTION AT ALL ADJACENT AND DOWNSTREAM CATCH BASINS 5. CLEAR AND GRUB FOR TEMPORARY SEDIMENT BASIN / POND INSTALL 6. CONSTRUCT TEMPORARY SEDIMENT BASIN / POND (SECTION 14) 7. CLEAR AND GRUB REMAINDER OF SITE 8. STRIP AND STOCKPILE TOPSOIL 9. ROUGH GRADING OF SITE 10. STABILIZE DENUDED AREAS AND STOCKPILES 11. INSTALL SANITARY SEWER, WATER MAIN STORM SEWER AND SERVICES 12. INSTALL SILT FENCE / INLET PROTECTION AROUND CB'S 13. INSTALL STREET SECTION 14. INSTALL CURB AND GUTTER 15. BITUMINOUS ON STREETS 16. FINAL GRADE BOULEVARD, INSTALL SEED AND MULCH 17. REMOVE ACCUMULATED SEDIMENT FROM BASIN / POND 18. FINAL GRADE POND / INFILTRATION BASINS (DO NOT COMPACT SOILS IN INFILTRATION AREAS.) 19. WHEN ALL CONSTRUCTION ACTIVITY IS COMPLETE AND THE SITE IS STABILIZED BY EITHER SEED OR SOD/LANDSCAPING, REMOVE SILT FENCE AND RESEED ANY AREAS DISTURBED BY THE REMOVAL. RECORDS RETENTION: THE SWPPP (ORIGINAL OR COPIES) INCLUDING, ALL CHANGES TO IT, AND INSPECTIONS AND MAINTENANCE RECORDS MUST BE KEPT AT THE SITE DURING CONSTRUCTION BY THE PERMITTEE WHO HAS OPERATIONAL CONTROL OF THAT PORTION OF THE SITE. THE SWPPP CAN BE KEPT IN EITHER THE FIELD OFFICE OR IN AN ON SITE VEHICLE DURING NORMAL WORKING HOURS. ALL OWNER(S) MUST KEEP THE SWPPP, ALONG WITH THE FOLLOWING ADDITIONAL RECORDS, ON FILE FOR THREE (3) YEARS AFTER SUBMITTAL OF THE NOT AS OUTLINED IN SECTION 4. THIS DOES NOT INCLUDE ANY RECORDS AFTER SUBMITTAL OF THE NOT. 1.THE FINAL SWPPP; 2.ANY OTHER STORMWATER RELATED PERMITS REQUIRED FOR THE PROJECT; 3.RECORDS OF ALL INSPECTION AND MAINTENANCE CONDUCTED DURING CONSTRUCTION (SEE SECTION 11, INSPECTIONS AND MAINTENANCE); 4.ALL PERMANENT OPERATION AND MAINTENANCE AGREEMENTS THAT HAVE BEEN IMPLEMENTED, INCLUDING ALL RIGHT OF WAY, CONTRACTS, COVENANTS AND OTHER BINDING REQUIREMENTS REGARDING PERPETUAL MAINTENANCE; AND 5.ALL REQUIRED CALCULATIONS FOR DESIGN OF THE TEMPORARY AND PERMANENT STORMWATER MANAGEMENT SYSTEMS. SWPPP IMPLEMENTATION RESPONSIBILITIES: 1.THE OWNER AND CONTRACTOR ARE PERMITTEE(S) AS IDENTIFIED BY THE NPDES PERMIT. 2.CONTRACTOR SHALL BE RESPONSIBLE FOR ALL ON-SITE IMPLEMENTATION OF THE SWPPP, INCLUDING THE ACTIVITIES OF ALL OF THE CONTRACTOR'S SUBCONTRACTORS. 3.CONTRACTOR SHALL PROVIDE A PERSON(S) KNOWLEDGEABLE AND EXPERIENCED IN THE APPLICATION OF EROSION PREVENTION AND SEDIMENT CONTROL BMPS TO OVERSEE ALL INSTALLATION AND MAINTENANCE OF BMPS AND IMPLEMENTATION OF THE SWPPP. 4.CONTRACTOR SHALL PROVIDE PERSON(S) MEETING THE TRAINING REQUIREMENTS OF THE NPDES PERMIT TO CONDUCT INSPECTION AND MAINTENANCE OF ALL EROSION PREVENTION AND SEDIMENT CONTROL BMPS IN ACCORDANCE WITH THE REQUIREMENTS OF THE PERMIT. ONE OF THESE INDIVIDUAL(S) MUST BE AVAILABLE FOR AN ONSITE INSPECTION WITHIN 72 HOURS UPON REQUEST BY MPCA. CONTRACTOR SHALL PROVIDE TRAINING DOCUMENTATION FOR THESE INDIVIDUAL(S) AS REQUIRED BY THE NPDES PERMIT. THIS TRAINING DOCUMENTATION SHALL BE RECORDED IN OR WITH THE SWPPP BEFORE THE START OF CONSTRUCTION OR AS SOON AS THE PERSONNEL FOR THE PROJECT HAVE BEEN DETERMINED. DOCUMENTATION SHALL INCLUDE: 4.1.NAMES OF THE PERSONNEL ASSOCIATED WITH THE PROJECT THAT ARE REQUIRED TO BE TRAINED PER SECTION 21 OF THE PERMIT. 4.2.DATES OF TRAINING AND NAME OF INSTRUCTOR AND ENTITY PROVIDING TRAINING. 4.3.CONTENT OF TRAINING COURSE OR WORKSHOP INCLUDING THE NUMBER OF HOURS OF TRAINING. 5.FOLLOWING FINAL STABILIZATION AND THE TERMINATION OF COVERAGE FOR THE NPDES PERMIT, THE OWNER IS EXPECTED TO FURNISH LONG TERM OPERATION AND MAINTENANCE (O & M) OF THE PERMANENT STORM WATER MANAGEMENT SYSTEM. CONSTRUCTION ACTIVITY REQUIREMENTS SWPPP AMENDMENTS (SECTION 6): 1.ONE OF THE INDIVIDUALS DESCRIBED IN ITEM 21.2.A OR ITEM 21.2.B OR ANOTHER QUALIFIED INDIVIDUAL MUST COMPLETE ALL SWPPP CHANGES. CHANGES INVOLVING THE USE OF A LESS STRINGENT BMP MUST INCLUDE A JUSTIFICATION DESCRIBING HOW THE REPLACEMENT BMP IS EFFECTIVE FOR THE SITE CHARACTERISTICS. 2.PERMITTEES MUST AMEND THE SWPPP TO INCLUDE ADDITIONAL OR MODIFIED BMPS AS NECESSARY TO CORRECT PROBLEMS IDENTIFIED OR ADDRESS SITUATIONS WHENEVER THERE IS A CHANGE IN DESIGN, CONSTRUCTION, OPERATION, MAINTENANCE, WEATHER OR SEASONAL CONDITIONS HAVING A SIGNIFICANT EFFECT ON THE DISCHARGE OF POLLUTANTS TO SURFACE WATERS OR GROUNDWATER. 3.PERMITTEES MUST AMEND THE SWPPP TO INCLUDE ADDITIONAL OR MODIFIED BMPS AS NECESSARY TO CORRECT PROBLEMS IDENTIFIED OR ADDRESS SITUATIONS WHENEVER INSPECTIONS OR INVESTIGATIONS BY THE SITE OWNER OR OPERATOR, USEPA OR MPCA OFFICIALS INDICATE THE SWPPP IS NOT EFFECTIVE IN ELIMINATING OR SIGNIFICANTLY MINIMIZING THE DISCHARGE OF POLLUTANTS TO SURFACE WATERS OR GROUNDWATER OR THE DISCHARGES ARE CAUSING WATER QUALITY STANDARD EXCEEDANCES (E.G., NUISANCE CONDITIONS AS DEFINED IN MINN. R. 7050.0210, SUBP. 2) OR THE SWPPP IS NOT CONSISTENT WITH THE OBJECTIVES OF A USEPA APPROVED TMDL. BMP SELECTION AND INSTALLATION (SECTION 7): 1.PERMITTEES MUST SELECT, INSTALL, AND MAINTAIN THE BMPS IDENTIFIED IN THE SWPPP AND IN THIS PERMIT IN AN APPROPRIATE AND FUNCTIONAL MANNER AND IN ACCORDANCE WITH RELEVANT MANUFACTURER SPECIFICATIONS AND ACCEPTED ENGINEERING PRACTICES. EROSION PREVENTION (SECTION 8): 1.BEFORE WORK BEGINS, PERMITTEES MUST DELINEATE THE LOCATION OF AREAS NOT TO BE DISTURBED. 2.PERMITTEES MUST MINIMIZE THE NEED FOR DISTURBANCE OF PORTIONS OF THE PROJECT WITH STEEP SLOPES. WHEN STEEP SLOPES MUST BE DISTURBED, PERMITTEES MUST USE TECHNIQUES SUCH AS PHASING AND STABILIZATION PRACTICES DESIGNED FOR STEEP SLOPES (E.G., SLOPE DRAINING AND TERRACING). 3.PERMITTEES MUST STABILIZE ALL EXPOSED SOIL AREAS, INCLUDING STOCKPILES. STABILIZATION MUST BE INITIATED IMMEDIATELY TO LIMIT SOIL EROSION WHEN CONSTRUCTION ACTIVITY HAS PERMANENTLY OR TEMPORARILY CEASED ON ANY PORTION OF THE SITE AND WILL NOT RESUME FOR A PERIOD EXCEEDING 14 CALENDAR DAYS. STABILIZATION MUST BE COMPLETED NO LATER THAN 14 CALENDAR DAYS AFTER THE CONSTRUCTION ACTIVITY HAS CEASED. STABILIZATION IS NOT REQUIRED ON CONSTRUCTED BASE COMPONENTS OF ROADS, PARKING LOTS AND SIMILAR SURFACES. STABILIZATION IS NOT REQUIRED ON TEMPORARY STOCKPILES WITHOUT SIGNIFICANT SILT, CLAY OR ORGANIC COMPONENTS (E.G., CLEAN AGGREGATE STOCKPILES, DEMOLITION CONCRETE STOCKPILES, SAND STOCKPILES) BUT PERMITTEES MUST PROVIDE SEDIMENT CONTROLS AT THE BASE OF THE STOCKPILE. 4.FOR PUBLIC WATERS THAT THE MINNESOTA DNR HAS PROMULGATED "WORK IN WATER RESTRICTIONS" DURING SPECIFIED FISH SPAWNING TIME FRAMES, PERMITTEES MUST COMPLETE STABILIZATION OF ALL EXPOSED SOIL AREAS WITHIN 200 FEET OF THE WATER'S EDGE, AND THAT DRAIN TO THESE WATERS, WITHIN 24 HOURS DURING THE RESTRICTION PERIOD. 5.PERMITTEES MUST STABILIZE THE NORMAL WETTED PERIMETER OF THE LAST 200 LINEAR FEET OF TEMPORARY OR PERMANENT DRAINAGE DITCHES OR SWALES THAT DRAIN WATER FROM THE SITE WITHIN 24 HOURS AFTER CONNECTING TO A SURFACE WATER OR PROPERTY EDGE. PERMITTEES MUST COMPLETE STABILIZATION OF REMAINING PORTIONS OF TEMPORARY OR PERMANENT DITCHES OR SWALES WITHIN 14 CALENDAR DAYS AFTER CONNECTING TO A SURFACE WATER OR PROPERTY EDGE AND CONSTRUCTION IN THAT PORTION OF THE DITCH TEMPORARILY OR PERMANENTLY CEASES. 6.TEMPORARY OR PERMANENT DITCHES OR SWALES BEING USED AS A SEDIMENT CONTAINMENT SYSTEM DURING CONSTRUCTION (WITH PROPERLY DESIGNED ROCK-DITCH CHECKS, BIO ROLLS, SILT DIKES, ETC.) DO NOT NEED TO BE STABILIZED. PERMITTEES MUST STABILIZE THESE AREAS WITHIN 24 HOURS AFTER THEIR USE AS A SEDIMENT CONTAINMENT SYSTEM CEASES 7.PERMITTEES MUST NOT USE MULCH, HYDROMULCH, TACKIFIER, POLYACRYLAMIDE OR SIMILAR EROSION PREVENTION PRACTICES WITHIN ANY PORTION OF THE NORMAL WETTED PERIMETER OF A TEMPORARY OR PERMANENT DRAINAGE DITCH OR SWALE SECTION WITH A CONTINUOUS SLOPE OF GREATER THAN 2 PERCENT. 8.PERMITTEES MUST PROVIDE TEMPORARY OR PERMANENT ENERGY DISSIPATION AT ALL PIPE OUTLETS WITHIN 24 HOURS AFTER CONNECTION TO A SURFACE WATER OR PERMANENT STORMWATER TREATMENT SYSTEM. 9.PERMITTEES MUST NOT DISTURB MORE LAND (I.E., PHASING) THAN CAN BE EFFECTIVELY INSPECTED AND MAINTAINED IN ACCORDANCE WITH SECTION 11. SEDIMENT CONTROL (SECTION 9): 1.PERMITTEES MUST ESTABLISH SEDIMENT CONTROL BMPS ON ALL DOWNGRADIENT PERIMETERS OF THE SITE AND DOWNGRADIENT AREAS OF THE SITE THAT DRAIN TO ANY SURFACE WATER, INCLUDING CURB AND GUTTER SYSTEMS. PERMITTEES MUST LOCATE SEDIMENT CONTROL PRACTICES UPGRADIENT OF ANY BUFFER ZONES. PERMITTEES MUST INSTALL SEDIMENT CONTROL PRACTICES BEFORE ANY UPGRADIENT LAND-DISTURBING ACTIVITIES BEGIN AND MUST KEEP THE SEDIMENT CONTROL PRACTICES IN PLACE UNTIL THEY ESTABLISH PERMANENT COVER. 2.IF DOWNGRADIENT SEDIMENT CONTROLS ARE OVERLOADED, BASED ON FREQUENT FAILURE OR EXCESSIVE MAINTENANCE REQUIREMENTS, PERMITTEES MUST INSTALL ADDITIONAL UPGRADIENT SEDIMENT CONTROL PRACTICES OR REDUNDANT BMPS TO ELIMINATE THE OVERLOADING AND AMEND THE SWPPP TO IDENTIFY THESE ADDITIONAL PRACTICES AS REQUIRED IN ITEM 6.3. 3.TEMPORARY OR PERMANENT DRAINAGE DITCHES AND SEDIMENT BASINS DESIGNED AS PART OF A SEDIMENT CONTAINMENT SYSTEM (E.G., DITCHES WITH ROCK-CHECK DAMS) REQUIRE SEDIMENT CONTROL PRACTICES ONLY AS APPROPRIATE FOR SITE CONDITIONS. 4.A FLOATING SILT CURTAIN PLACED IN THE WATER IS NOT A SEDIMENT CONTROL BMP TO SATISFY ITEM 9.2 EXCEPT WHEN WORKING ON A SHORELINE OR BELOW THE WATERLINE. IMMEDIATELY AFTER THE SHORT TERM CONSTRUCTION ACTIVITY (E.G., INSTALLATION OF RIP RAP ALONG THE SHORELINE) IN THAT AREA IS COMPLETE, PERMITTEES MUST INSTALL AN UPLAND PERIMETER CONTROL PRACTICE IF EXPOSED SOILS STILL DRAIN TO A SURFACE WATER. 5.PERMITTEES MUST RE-INSTALL ALL SEDIMENT CONTROL PRACTICES ADJUSTED OR REMOVED TO ACCOMMODATE SHORT-TERM ACTIVITIES SUCH AS CLEARING OR GRUBBING, OR PASSAGE OF VEHICLES, IMMEDIATELY AFTER THE SHORT-TERM ACTIVITY IS COMPLETED. PERMITTEES MUST RE-INSTALL SEDIMENT CONTROL PRACTICES BEFORE THE NEXT PRECIPITATION EVENT EVEN IF THE SHORT-TERM ACTIVITY IS NOT COMPLETE. 6.PERMITTEES MUST PROTECT ALL STORM DRAIN INLETS USING APPROPRIATE BMPS DURING CONSTRUCTION UNTIL THEY ESTABLISH PERMANENT COVER ON ALL AREAS WITH POTENTIAL FOR DISCHARGING TO THE INLET. 7.PERMITTEES MAY REMOVE INLET PROTECTION FOR A PARTICULAR INLET IF A SPECIFIC SAFETY CONCERN (E.G. STREET FLOODING/FREEZING) IS IDENTIFIED BY THE PERMITTEES OR THE JURISDICTIONAL AUTHORITY (E.G., CITY/COUNTY/TOWNSHIP/MINNESOTA DEPARTMENT OF TRANSPORTATION ENGINEER). PERMITTEES MUST DOCUMENT THE NEED FOR REMOVAL IN THE SWPPP. 8.PERMITTEES MUST PROVIDE SILT FENCE OR OTHER EFFECTIVE SEDIMENT CONTROLS AT THE BASE OF STOCKPILES ON THE DOWNGRADIENT PERIMETER. 9.PERMITTEES MUST LOCATE STOCKPILES OUTSIDE OF NATURAL BUFFERS OR SURFACE WATERS, INCLUDING STORMWATER CONVEYANCES SUCH AS CURB AND GUTTER SYSTEMS UNLESS THERE IS A BYPASS IN PLACE FOR THE STORMWATER. 10. PERMITTEES MUST INSTALL A VEHICLE TRACKING BMP TO MINIMIZE THE TRACK OUT OF SEDIMENT FROM THE CONSTRUCTION SITE OR ONTO PAVED ROADS WITHIN THE SITE. 11. PERMITTEES MUST USE STREET SWEEPING IF VEHICLE TRACKING BMPS ARE NOT ADEQUATE TO PREVENT SEDIMENT TRACKING ONTO THE STREET. 12. PERMITTEES MUST INSTALL TEMPORARY SEDIMENT BASINS AS REQUIRED IN SECTION 14. 13. IN ANY AREAS OF THE SITE WHERE FINAL VEGETATIVE STABILIZATION WILL OCCUR, PERMITTEES MUST RESTRICT VEHICLE AND EQUIPMENT USE TO MINIMIZE SOIL COMPACTION. 14. PERMITTEES MUST PRESERVE TOPSOIL ON THE SITE, UNLESS INFEASIBLE. 15. PERMITTEES MUST DIRECT DISCHARGES FROM BMPS TO VEGETATED AREAS UNLESS INFEASIBLE. 16. PERMITTEES MUST PRESERVE A 50 FOOT NATURAL BUFFER OR, IF A BUFFER IS INFEASIBLE ON THE SITE, PROVIDE REDUNDANT (DOUBLE) PERIMETER SEDIMENT CONTROLS WHEN A SURFACE WATER IS LOCATED WITHIN 50 FEET OF THE PROJECT'S EARTH DISTURBANCES AND STORMWATER FLOWS TO THE SURFACE WATER. PERMITTEES MUST INSTALL PERIMETER SEDIMENT CONTROLS AT LEAST 5 FEET APART UNLESS LIMITED BY LACK OF AVAILABLE SPACE. NATURAL BUFFERS ARE NOT REQUIRED ADJACENT TO ROAD DITCHES, JUDICIAL DITCHES, COUNTY DITCHES, STORMWATER CONVEYANCE CHANNELS, STORM DRAIN INLETS, AND SEDIMENT BASINS. IF PRESERVING THE BUFFER IS INFEASIBLE, PERMITTEES MUST DOCUMENT THE REASONS IN THE SWPPP. SHEET PILING IS A REDUNDANT PERIMETER CONTROL IF INSTALLED IN A MANNER THAT RETAINS ALL STORMWATER. 17. PERMITTEES MUST USE POLYMERS, FLOCCULANTS, OR OTHER SEDIMENTATION TREATMENT CHEMICALS IN ACCORDANCE WITH ACCEPTED ENGINEERING PRACTICES, DOSING SPECIFICATIONS AND SEDIMENT REMOVAL DESIGN SPECIFICATIONS PROVIDED BY THE MANUFACTURER OR SUPPLIER. THE PERMITTEES MUST USE CONVENTIONAL EROSION AND SEDIMENT CONTROLS PRIOR TO CHEMICAL ADDITION AND MUST DIRECT TREATED STORMWATER TO A SEDIMENT CONTROL SYSTEM FOR FILTRATION OR SETTLEMENT OF THE FLOC PRIOR TO DISCHARGE. DEWATERING AND BASIN DRAINING (SECTION 10): 1.PERMITTEES MUST DISCHARGE TURBID OR SEDIMENT-LADEN WATERS RELATED TO DEWATERING OR BASIN DRAINING (E.G., PUMPED DISCHARGES, TRENCH/DITCH CUTS FOR DRAINAGE) TO A TEMPORARY OR PERMANENT SEDIMENT BASIN ON THE PROJECT SITE UNLESS INFEASIBLE. PERMITTEES MAY DEWATER TO SURFACE WATERS IF THEY VISUALLY CHECK TO ENSURE ADEQUATE TREATMENT HAS BEEN OBTAINED AND NUISANCE CONDITIONS (SEE MINN. R. 7050.0210, SUBP. 2) WILL NOT RESULT FROM THE DISCHARGE. IF PERMITTEES CANNOT DISCHARGE THE WATER TO A SEDIMENTATION BASIN PRIOR TO ENTERING A SURFACE WATER, PERMITTEES MUST TREAT IT WITH APPROPRIATE BMPS SUCH THAT THE DISCHARGE DOES NOT ADVERSELY AFFECT THE SURFACE WATER OR DOWNSTREAM PROPERTIES. 2.IF PERMITTEES MUST DISCHARGE WATER CONTAINING OIL OR GREASE, THEY MUST USE AN OIL-WATER SEPARATOR OR SUITABLE FILTRATION DEVICE (E.G., CARTRIDGE FILTERS, ABSORBENTS PADS) PRIOR TO DISCHARGE. 3.PERMITTEES MUST DISCHARGE ALL WATER FROM DEWATERING OR BASIN-DRAINING ACTIVITIES IN A MANNER THAT DOES NOT CAUSE EROSION OR SCOUR IN THE IMMEDIATE VICINITY OF DISCHARGE POINTS OR INUNDATION OF WETLANDS IN THE IMMEDIATE VICINITY OF DISCHARGE POINTS THAT CAUSES SIGNIFICANT ADVERSE IMPACT TO THE WETLAND. 4.IF PERMITTEES USE FILTERS WITH BACKWASH WATER, THEY MUST HAUL THE BACKWASH WATER AWAY FOR DISPOSAL, RETURN THE BACKWASH WATER TO THE BEGINNING OF THE TREATMENT PROCESS, OR INCORPORATE THE BACKWASH WATER INTO THE SITE IN A MANNER THAT DOES NOT CAUSE EROSION. INSPECTIONS AND MAINTENANCE (SECTION 11): 1.PERMITTEES MUST ENSURE A TRAINED PERSON, AS IDENTIFIED IN ITEM 21.2.B, WILL INSPECT THE ENTIRE CONSTRUCTION SITE AT LEAST ONCE EVERY SEVEN (7) DAYS DURING ACTIVE CONSTRUCTION AND WITHIN 24 HOURS AFTER A RAINFALL EVENT GREATER THAN 1/2 INCH IN 24 HOURS. 2.PERMITTEES MUST INSPECT AND MAINTAIN ALL PERMANENT STORMWATER TREATMENT BMPS. 3.PERMITTEES MUST INSPECT ALL EROSION PREVENTION AND SEDIMENT CONTROL BMPS AND POLLUTION PREVENTION MANAGEMENT MEASURES TO ENSURE INTEGRITY AND EFFECTIVENESS. PERMITTEES MUST REPAIR, REPLACE OR SUPPLEMENT ALL NONFUNCTIONAL BMPS WITH FUNCTIONAL BMPS BY THE END OF THE NEXT BUSINESS DAY AFTER DISCOVERY UNLESS ANOTHER TIME FRAME IS SPECIFIED IN ITEM 11.5 OR 11.6. PERMITTEES MAY TAKE ADDITIONAL TIME IF FIELD CONDITIONS PREVENT ACCESS TO THE AREA. 4.DURING EACH INSPECTION, PERMITTEES MUST INSPECT SURFACE WATERS, INCLUDING DRAINAGE DITCHES AND CONVEYANCE SYSTEMS BUT NOT CURB AND GUTTER SYSTEMS, FOR EVIDENCE OF EROSION AND SEDIMENT DEPOSITION. PERMITTEES MUST REMOVE ALL DELTAS AND SEDIMENT DEPOSITED IN SURFACE WATERS, INCLUDING DRAINAGE WAYS, CATCH BASINS, AND OTHER DRAINAGE SYSTEMS AND RESTABILIZE THE AREAS WHERE SEDIMENT REMOVAL RESULTS IN EXPOSED SOIL. PERMITTEES MUST COMPLETE REMOVAL AND STABILIZATION WITHIN SEVEN (7) CALENDAR DAYS OF DISCOVERY UNLESS PRECLUDED BY LEGAL, REGULATORY, OR PHYSICAL ACCESS CONSTRAINTS. PERMITTEES MUST USE ALL REASONABLE EFFORTS TO OBTAIN ACCESS. IF PRECLUDED, REMOVAL AND STABILIZATION MUST TAKE PLACE WITHIN SEVEN (7) DAYS OF OBTAINING ACCESS. PERMITTEES ARE RESPONSIBLE FOR CONTACTING ALL LOCAL, REGIONAL, STATE AND FEDERAL AUTHORITIES AND RECEIVING ANY APPLICABLE PERMITS, PRIOR TO CONDUCTING ANY WORK IN SURFACE WATERS. 5.PERMITTEES MUST INSPECT CONSTRUCTION SITE VEHICLE EXIT LOCATIONS, STREETS AND CURB AND GUTTER SYSTEMS WITHIN AND ADJACENT TO THE PROJECT FOR SEDIMENTATION FROM EROSION OR TRACKED SEDIMENT FROM VEHICLES. PERMITTEES MUST REMOVE SEDIMENT FROM ALL PAVED SURFACES WITHIN ONE (1) CALENDAR DAY OF DISCOVERY OR, IF APPLICABLE, WITHIN A SHORTER TIME TO AVOID A SAFETY HAZARD TO USERS OF PUBLIC STREETS. 6.PERMITTEES MUST REPAIR, REPLACE OR SUPPLEMENT ALL PERIMETER CONTROL DEVICES WHEN THEY BECOME NONFUNCTIONAL OR THE SEDIMENT REACHES 1/2 OF THE HEIGHT OF THE DEVICE. 7.PERMITTEES MUST DRAIN TEMPORARY AND PERMANENT SEDIMENTATION BASINS AND REMOVE THE SEDIMENT WHEN THE DEPTH OF SEDIMENT COLLECTED IN THE BASIN REACHES 1/2 THE STORAGE VOLUME. 8.PERMITTEES MUST ENSURE THAT AT LEAST ONE INDIVIDUAL PRESENT ON THE SITE (OR AVAILABLE TO THE PROJECT SITE IN THREE (3) CALENDAR DAYS) IS TRAINED IN THE JOB DUTIES DESCRIBED IN ITEM 21.2.B. 9.PERMITTEES MAY ADJUST THE INSPECTION SCHEDULE DESCRIBED IN ITEM 11.2 AS FOLLOWS: a. INSPECTIONS OF AREAS WITH PERMANENT COVER CAN BE REDUCED TO ONCE PER MONTH, EVEN IF CONSTRUCTION ACTIVITY CONTINUES ON OTHER PORTIONS OF THE SITE; OR b.WHERE SITES HAVE PERMANENT COVER ON ALL EXPOSED SOIL AND NO CONSTRUCTION ACTIVITY IS OCCURRING ANYWHERE ON THE SITE, INSPECTIONS CAN BE REDUCED TO ONCE PER MONTH AND, AFTER 12 MONTHS, MAY BE SUSPENDED COMPLETELY UNTIL CONSTRUCTION ACTIVITY RESUMES. THE MPCA MAY REQUIRE INSPECTIONS TO RESUME IF CONDITIONS WARRANT; OR c.WHERE CONSTRUCTION ACTIVITY HAS BEEN SUSPENDED DUE TO FROZEN GROUND CONDITIONS, INSPECTIONS MAY BE SUSPENDED. INSPECTIONS MUST RESUME WITHIN 24 HOURS OF RUNOFF OCCURRING, OR UPON RESUMING CONSTRUCTION, WHICHEVER COMES FIRST. 10. PERMITTEES MUST RECORD ALL INSPECTIONS AND MAINTENANCE ACTIVITIES WITHIN 24 HOURS OF BEING CONDUCTED AND THESE RECORDS MUST BE RETAINED WITH THE SWPPP. THESE RECORDS MUST INCLUDE: a.DATE AND TIME OF INSPECTIONS; AND b.NAME OF PERSONS CONDUCTING INSPECTIONS; AND c.ACCURATE FINDINGS OF INSPECTIONS, INCLUDING THE SPECIFIC LOCATION WHERE CORRECTIVE ACTIONS ARE NEEDED; AND d.CORRECTIVE ACTIONS TAKEN (INCLUDING DATES, TIMES, AND PARTY COMPLETING MAINTENANCE ACTIVITIES); AND e.DATE OF ALL RAINFALL EVENTS GREATER THAN 1/2 INCHES IN 24 HOURS, AND THE AMOUNT OF RAINFALL FOR EACH EVENT. PERMITTEES MUST OBTAIN RAINFALL AMOUNTS BY EITHER A PROPERLY MAINTAINED RAIN GAUGE INSTALLED ONSITE, A WEATHER STATION THAT IS WITHIN ONE (1) MILE OF YOUR LOCATION, OR A WEATHER REPORTING SYSTEM THAT PROVIDES SITE SPECIFIC RAINFALL DATA FROM RADAR SUMMARIES; AND f.IF PERMITTEES OBSERVE A DISCHARGE DURING THE INSPECTION, THEY MUST RECORD AND SHOULD PHOTOGRAPH AND DESCRIBE THE LOCATION OF THE DISCHARGE (I.E., COLOR, ODOR, SETTLED OR SUSPENDED SOLIDS, OIL SHEEN, AND OTHER OBVIOUS INDICATORS OF POLLUTANTS); AND g.ANY AMENDMENTS TO THE SWPPP PROPOSED AS A RESULT OF THE INSPECTION MUST BE DOCUMENTED AS REQUIRED IN SECTION 6 WITHIN SEVEN (7) CALENDAR DAYS. POLLUTION PREVENTION MANAGEMENT (SECTION 12): 1.PERMITTEES MUST PLACE BUILDING PRODUCTS AND LANDSCAPE MATERIALS UNDER COVER (E.G., PLASTIC SHEETING OR TEMPORARY ROOFS) OR PROTECT THEM BY SIMILARLY EFFECTIVE MEANS DESIGNED TO MINIMIZE CONTACT WITH STORMWATER. PERMITTEES ARE NOT REQUIRED TO COVER OR PROTECT PRODUCTS WHICH ARE EITHER NOT A SOURCE OF CONTAMINATION TO STORMWATER OR ARE DESIGNED TO BE EXPOSED TO STORMWATER. 2.PERMITTEES MUST PLACE PESTICIDES, FERTILIZERS AND TREATMENT CHEMICALS UNDER COVER (E.G., PLASTIC SHEETING OR TEMPORARY ROOFS) OR PROTECT THEM BY SIMILARLY EFFECTIVE MEANS DESIGNED TO MINIMIZE CONTACT WITH STORMWATER. 3.PERMITTEES MUST STORE HAZARDOUS MATERIALS AND TOXIC WASTE, (INCLUDING OIL, DIESEL FUEL, GASOLINE, HYDRAULIC FLUIDS, PAINT SOLVENTS, PETROLEUM-BASED PRODUCTS, WOOD PRESERVATIVES, ADDITIVES, CURING COMPOUNDS, AND ACIDS) IN SEALED CONTAINERS TO PREVENT SPILLS, LEAKS OR OTHER DISCHARGE. STORAGE AND DISPOSAL OF HAZARDOUS WASTE MATERIALS MUST BE IN COMPLIANCE WITH MINN. R. CH. 7045 INCLUDING SECONDARY CONTAINMENT AS APPLICABLE. 4.PERMITTEES MUST PROPERLY STORE, COLLECT AND DISPOSE SOLID WASTE IN COMPLIANCE WITH MINN. R. CH. 7035. 5.PERMITTEES MUST POSITION PORTABLE TOILETS SO THEY ARE SECURE AND WILL NOT TIP OR BE KNOCKED OVER. PERMITTEES MUST PROPERLY DISPOSE SANITARY WASTE IN ACCORDANCE WITH MINN. R. CH. 7041. 6.PERMITTEES MUST TAKE REASONABLE STEPS TO PREVENT THE DISCHARGE OF SPILLED OR LEAKED CHEMICALS, INCLUDING FUEL, FROM ANY AREA WHERE CHEMICALS OR FUEL WILL BE LOADED OR UNLOADED INCLUDING THE USE OF DRIP PANS OR ABSORBENTS UNLESS INFEASIBLE. PERMITTEES MUST ENSURE ADEQUATE SUPPLIES ARE AVAILABLE AT ALL TIMES TO CLEAN UP DISCHARGED MATERIALS AND THAT AN APPROPRIATE DISPOSAL METHOD IS AVAILABLE FOR RECOVERED SPILLED MATERIALS. PERMITTEES MUST REPORT AND CLEAN UP SPILLS IMMEDIATELY AS REQUIRED BY MINN. STAT. 115.061, USING DRY CLEAN UP MEASURES WHERE POSSIBLE. 7.PERMITTEES MUST LIMIT VEHICLE EXTERIOR WASHING AND EQUIPMENT TO A DEFINED AREA OF THE SITE. PERMITTEES MUST CONTAIN RUNOFF FROM THE WASHING AREA IN A SEDIMENT BASIN OR OTHER SIMILARLY EFFECTIVE CONTROLS AND MUST DISPOSE WASTE FROM THE WASHING ACTIVITY PROPERLY. PERMITTEES MUST PROPERLY USE AND STORE SOAPS, DETERGENTS, OR SOLVENTS. 8.PERMITTEES MUST PROVIDE EFFECTIVE CONTAINMENT FOR ALL LIQUID AND SOLID WASTES GENERATED BY WASHOUT OPERATIONS (E.G., CONCRETE, STUCCO, PAINT, FORM RELEASE OILS, CURING COMPOUNDS AND OTHER CONSTRUCTION MATERIALS) RELATED TO THE CONSTRUCTION ACTIVITY. PERMITTEES MUST PREVENT LIQUID AND SOLID WASHOUT WASTES FROM CONTACTING THE GROUND AND MUST DESIGN THE CONTAINMENT SO IT DOES NOT RESULT IN RUNOFF FROM THE WASHOUT OPERATIONS OR AREAS. PERMITTEES MUST PROPERLY DISPOSE LIQUID AND SOLID WASTES IN COMPLIANCE WITH MPCA RULES. PERMITTEES MUST INSTALL A SIGN INDICATING THE LOCATION OF THE WASHOUT FACILITY. PERMIT TERMINATION (SECTION 4 AND SECTION 13): 1.PERMITTEES MUST SUBMIT A NOT WITHIN 30 DAYS AFTER ALL TERMINATION CONDITIONS LISTED IN SECTION 13 ARE COMPLETE. 2.PERMITTEES MUST SUBMIT A NOT WITHIN 30 DAYS AFTER SELLING OR OTHERWISE LEGALLY TRANSFERRING THE ENTIRE SITE, INCLUDING PERMIT RESPONSIBILITY FOR ROADS (E.G., STREET SWEEPING) AND STORMWATER INFRASTRUCTURE FINAL CLEAN OUT, OR TRANSFERRING PORTIONS OF A SITE TO ANOTHER PARTY. THE PERMITTEES' COVERAGE UNDER THIS PERMIT TERMINATES AT MIDNIGHT ON THE SUBMISSION DATE OF THE NOT. 3.PERMITTEES MUST COMPLETE ALL CONSTRUCTION ACTIVITY AND MUST INSTALL PERMANENT COVER OVER ALL AREAS PRIOR TO SUBMITTING THE NOT. VEGETATIVE COVER MUST CONSIST OF A UNIFORM PERENNIAL VEGETATION WITH A DENSITY OF 70 PERCENT OF ITS EXPECTED FINAL GROWTH. VEGETATION IS NOT REQUIRED WHERE THE FUNCTION OF A SPECIFIC AREA DICTATES NO VEGETATION, SUCH AS IMPERVIOUS SURFACES OR THE BASE OF A SAND FILTER. 4.PERMITTEES MUST CLEAN THE PERMANENT STORMWATER TREATMENT SYSTEM OF ANY ACCUMULATED SEDIMENT AND MUST ENSURE THE SYSTEM MEETS ALL APPLICABLE REQUIREMENTS IN SECTION 15 THROUGH 19 AND IS OPERATING AS DESIGNED. 5.PERMITTEES MUST REMOVE ALL SEDIMENT FROM CONVEYANCE SYSTEMS PRIOR TO SUBMITTING THE NOT. 6.PERMITTEES MUST REMOVE ALL TEMPORARY SYNTHETIC EROSION PREVENTION AND SEDIMENT CONTROL BMPS PRIOR TO SUBMITTING THE NOT. PERMITTEES MAY LEAVE BMPS DESIGNED TO DECOMPOSE ON-SITE IN PLACE. 7.FOR RESIDENTIAL CONSTRUCTION ONLY, PERMIT COVERAGE TERMINATES ON INDIVIDUAL LOTS IF THE STRUCTURES ARE FINISHED AND TEMPORARY EROSION PREVENTION AND DOWNGRADIENT PERIMETER CONTROL IS COMPLETE, THE RESIDENCE SELLS TO THE HOMEOWNER, AND THE PERMITTEE DISTRIBUTES THE MPCA'S "HOMEOWNER FACT SHEET" TO THE HOMEOWNER. 8.FOR CONSTRUCTION PROJECTS ON AGRICULTURAL LAND (E.G., PIPELINES ACROSS CROPLAND), PERMITTEES MUST RETURN THE DISTURBED LAND TO ITS PRECONSTRUCTION AGRICULTURAL USE PRIOR TO SUBMITTING THE NOT. SEED NOTES: ALL SEED MIXES AND APPLICATION SHALL BE IN ACCORDANCE WITH THE MNDOT SEEDING MANUAL. GENERAL RECOMMENDATIONS: THE CONTRACTOR IS RESPONSIBLE TO SALVAGE AND PRESERVE EXISTING TOPSOIL NECESSARY FOR FINAL STABILIZATION AND TO ALSO MINIMIZE COMPACTION IN ALL LANDSCAPE AREAS. IMMEDIATELY BEFORE SEEDING THE SOIL SHALL BE TILLED TO A MINIMUM DEPTH OF 3 INCHES. TEMPORARY EROSION CONTROL SEEDING, MULCHING & BLANKET. SEED ·TEMPORARY SEED SHALL BE MNDOT SEED MIX 21-112 (WINTER WHEAT COVER CROP) FOR WINTER AND 21-111 (OATS COVER CROP) FOR SPRING/SUMMER APPLICATIONS. BOTH SEED MIXES SHALL BE APPLIED AT A SEEDING RATE OF 100 LBS/ACRE. MULCH ·IMMEDIATELY AFTER SEEDING, WITHIN 24 HOURS, MNDOT TYPE 1 MULCH SHOULD BE APPLIED TO PROTECT AND ENHANCE SEED GERMINATION. MULCH SHALL BE APPLIED AT 90% COVERAGE (2 TONS PER ACRE OF STRAW MULCH) SLOPES ·3:1 (HORIZ/VERT.) OR FLATTER MUCH SHALL BE COVERED WITH MULCH ·SLOPES STEEPER THAN 3:1 OR DITCH BOTTOMS SHALL BE COVERED WITH EROSION CONTROL BLANKET. ·SEE PLAN FOR MORE DETAILED DITCH AND STEEP SLOPE EROSION CONTROL TREATMENTS. REVISION SUMMARY DATE DESCRIPTION TSUNAMI EXPRESS CAR WASH, LLC. 4800 MEADOWS ROAD, SUITE 300 LAKE OSWEGO, OR 97305 CHRIS SCHULDT 920-744-9882 CHRIS@TSUNAMIEXPRESS.COM PROJECT NARRATIVE: PROJECT IS A REDEVELOPMENT OF AN EXISTING MULTI-STORY OFFICE BUILDING INTO AN AUTOMATED CAR WASH. SITE, GRADING, UTILITY AND LANDSCAPE IMPROVEMENTS WILL OCCUR. INFILTRATION NARRATIVE: INFILTRATION IS NOT PROVIDED AS PART OF THE PROJECTS PERMANENT STORM WATER MANAGEMENT SYSTEM. SOIL CONTAMINATION NARRATIVE: SOILS ONSITE HAVE NOT BEEN IDENTIFIED AS CONTAMINATED. SPECIAL TMDL BMP REQUIREMENTS SITE SPECIFIC (IF REQUIRED): NA PERMANENT STABILIZATION NOTES SITE SPECIFIC: PERMANENT SEED MIX ·FOR THIS PROJECT ALL AREAS THAT ARE NOT TO BE SODDED OR LANDSCAPED SHALL RECEIVE A NATIVE PERMANENT SEED MIX. ··AREAS IN BUFFERS AND ADJACENT TO OR IN WET AREAS MNDOT SEED MIX 33-261 (STORMWATER SOUTH AND WEST) AT 35 LBS PER ACRE. ··DRY AREAS MNDOT SEED MIX 35-221 (DRY PRAIRIE GENERAL) AT 40 LBS PER ACRE. ·MAINTENANCE SHALL BE IN ACCORDANCE TO THE MNDOT SEEDING MANUAL. THIS PROJECT IS LESS THAN 1.0 ACRES SO AN NPDES PERMIT IS NOT REQUIRED AND DOES NOT NEED TO BE SUBMITTED TO THE MPCA. COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 48776 David J. Knaeble LICENSE NO.DATE I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MINNESOTA. 8/05/24 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R NATIVE BUFFER NARRATIVE: PRESERVING A 50 FOOT NATURAL BUFFER AROUND WATER BODIES IS NOT REQUIRED OF THIS PROJECT BECAUSE WATER BODIES ARE NOT LOCATED ON SITE. DESIGN ENGINEER: DAVID J. KNAEBLE P.E. TRAINING COURSE: DESIGN OF SWPPP TRAINING ENTITY: UNIVERSITY OF MINNESOTA INSTRUCTOR: JOHN CHAPMAN DATES OF TRAINING COURSE: 8/22/2012- 8/23/2012 TOTAL TRAINING HOURS: 12 DATE OF RECERTIFICATION: 4/22/22 EXPIRATION: 5/31/2025 50 Item 2. c The Redmond Company2021 24056 06.20.2024 Tsunami Express Car Wash Cover Sheet 51 Item 2. 1070-02 1070-02 CJ CJ CJ CJ CJ C C C C C C 2214-07 BR-4 CS-5 CS-3 CS-4 BR-2 BR-1 CMU-1 CS-6 BR-1 BR-4 AC-1 CS-2CS-2CS-3 BR-1 BR - 1 BR - 3 0420-14 1044-04 BR-1 CS-3 BR-2 AC-1 2656-03 MR-1 30 ' - 4 " 14 ' - 8 " 1070-02 1070-02CJCJCJCJCJCJ A A B B B B B BR-1 BR-3 AC-1 CS-1 AC-1 BR-4 BR-1 CS-5 0841-01 CS-1 BR - 1 BR - 2 BR - 3 BR - 2 B R - 3 BR-1 MR-1 AF-1 0420-14 BR-1 2656-03CMU-2 CS-1 0841-06 AC-1 0420-14 AC-1 0771-050771-05 AC-1 0420-14 AC-1 30 ' - 4 " 16 ' - 1 1 " 19 ' - 7 " 1070-02 1070-02 A BR-1 BR-4 AC-1 BR-3 BR-3 CS-4 CS-4 0833-02 0841-01 CS-1 CS-6 BR-1 BR-4 AC-1 0724-01 0473-07 14 ' - 1 1 " 30 ' - 4 " 1070-02 1070-02 A CS-6 BR-1 CS-1 0841-01 CS-4 BR-4 AC-1 BR-3 BR-3 AC-1 0473-07 0724-01 19 ' - 4 " 14 ' - 8 " (BR-X): STRUCTURAL BRICK MANUFACTURER: COUNTY MATERIALS PRODUCT: HERITAGE (STRUCTURAL BRICK) COLOR: GRAYSTONE MORTAR COLOR: SPECMIX SM100 GREY (BR-1): 4" X 4" X 16" STRUCTURAL BRICK (BR-2): 8" X 4" X 16" STRUCTURAL BRICK (BR-3): 12" X 4" X 16" STRUCTURAL BRICK (CS-X): CAST STONE MANUFACTURER: MARCSTONE COLOR: DARK SHALE (SEE CAST STONE PROFILES) (MR-1:) STANDING SEAM METAL ROOF: MANUFACTURER: PAC-CLAD PRODUCT: COLOR: AWARD BLUE EXTERIOR MATERIAL LEGEND (CMU-X): -SPLIT FACE CMU MANUFACTURER: COUNTY MATERIALS PRODUCT: SPLIT FACE COLOR: STEEL GRAY (CMU-1): 8" X 8" X 16" (CMU-2): 12" X 8" X 16" (EIFS-1): EXTERIOR FINISH SYSTEM MANUFACTURER: DRYVIT PRODUCT: OUTSULATION PLUS MD COLOR: #SW 7068 GRIZZLE GRAY FINISH: SANDBLAST (GTR-1): PREFINISHED ALUMINUM GUTTER/DOWNSPOUT MANUFACTURER: PAC-CLAD PRODUCT: 5" BEVELED PROFILE GUTTERS COLOR: PACIFIC BLUE (AF-1): PREFINISHED ALUMINUM FASCIA MANUFACTURER: PAC-CLAD PRODUCT: FORMED ALUMINUM COLOR: PACIFIC BLUE (AC-1): PREFINISHED ALUMINUM COPING MANUFACTURER: PAC-CLAD PRODUCT: PAC-TITE COPING-TAPERED COLOR: PACIFIC BLUE (AS-1): PREFINISHED ALUMINUM SOFFIT PANEL MANUFACTURER: PAC-CLAD PRODUCT: VENTED ALUMINUM PANEL COLOR: PACIFIC BLUE c The Redmond Company2021 24056 06.20.2024 Tsunami Express Car Wash Exterior Elevations KEYNOTES PER SHEET 0420-14 BRICK SOLDIER COURSE 0473-07 CAST STONE DECORATIVE ELEMENT 0724-01 EIFS (SEE EXTERIOR MATERIAL SCHEDULE) 0771-05 PREFINISHED ALUMINUM SCUPPER W/ DOWNSPOUT (TYP.) SEE EXTERIOR MATERIAL LEGEND FOR COLOR. CONNECT TO STORM SEWER; SEE CIVIL DRAWINGS. 0833-02 OVERHEAD DOOR, SEE DOOR SCHED. 0841-01 THERMALLY BROKEN ALUMINUM STOREFRONT SYSTEM - CENTER GLAZED - STANDARD 2" X 4-1/2" MULLIONS, TYPICAL. 0841-06 ALUMINUM FRAMED ENTRANCE DOOR (SEE DOOR SCHEDULE). 1044-04 KNOX BOX. VERIFY LOCATION WITH AUTHORITY HAVING JURISDICTION (AHJ) PRIOR TO INSTALLATION. 1070-02 PREFABRICATED ALUMINUM CANOPY 2214-07 OVERFLOW DRAIN WITH LAMB'S TONGUE APPROXIMATELY 18" A.F.F. (SEE PLUMBING DRAWINGS) 2656-03 EXTERIOR WALL-MOUNTED LIGHT FIXTURE (SEE ELECTRICAL DRAWINGS) AC-1 PREFINISHED ALUMINUM COPING. SEE EXTERIOR MATERIAL LEGEND. AF-1 PREFINISHED ALUMINUM FASCIA ON EXTERIOR GRADE 2X12 RAKE BOARD AND 1X6 TRIM BOARD. SEE EXTERIOR MATERIAL LEGEND. BR-1 4" X 4" X 16" STRUCTURAL BRICK. SEE EXTERIOR MATERIAL LEGEND. BR-2 8" X 4" X 16" STRUCTURAL BRICK. SEE EXTERIOR MATERIAL LEGEND. BR-3 12" X 4" X 16" STRUCTURAL BRICK. SEE EXTERIOR MATERIAL LEGEND. BR-4 4" X 4" X 16" STRUCTURAL BRICK SOLDIER COURSE. SEE EXTERIOR MATERIAL LEGEND CMU-1 8" X 8" X 16" SPLIT FACE CMU. SEE EXTERIOR MATERIAL LEGEND. CMU-2 12" X 8" X 16" SPLIT FACE CMU. SEE EXTERIOR MATERIAL LEGEND. CS-1 CAST STONE SILL. SEE CAST STONE PROFILES. CS-2 CAST STONE SILL. SEE CAST STONE PROFILES. CS-3 CAST STONE BASE. SEE CAST STONE PROFILES. CS-4 CAST STONE SILL. SEE CAST STONE PROFILES. CS-5 CAST STONE HEAD. SEE CAST STONE PROFILES. CS-6 CAST STONE PIER. SEE CAST STONE PROFILES. MR-1 STANDING SEAM METAL ROOF. SEE EXTERIOR MATERIAL LEGEND. 3/16" = 1'-0" FRONT ELEVATION1 3/16" = 1'-0" REAR ELEVATION2 3/16" = 1'-0" ENTRANCE ELEVATION3 3/16" = 1'-0" EXIT ELEVATION4 52 Item 2. 2128 SF CAR WASH BAY 960 SF MECHANICAL 94 SF RESTROOM 57 SF STORAGE 145 SF OFFICE 125' - 0" 11' - 0" 8' - 0" 8' - 0" 8' - 0" 3' - 0" 8' - 0" 8' - 0" 8' - 0" 4' - 0" 8' - 0" 8' - 0" 8' - 0" 15' - 0" 6' - 0" 4' - 0" 6' - 0" 4' - 0" EQ 2' - 8" EQEQ 2' - 8" EQEQ 2' - 8" EQ 35 ' - 0 " 5' - 0 " 1 ' - 0 " 12 ' - 0 " 1' - 0 " 5 ' - 4 " 6' - 0 " 2 ' - 4 " 2 ' - 4 " 6' - 0" 8' - 0" 5' - 8" 8' - 0" 11' - 4" 8' - 0" 5' - 8" 6' - 4" 8' - 8" 8' - 0" 4' - 0" 8' - 0" 6' - 8" 3' - 4" 2' - 0" 8' - 0" 4' - 0" 7' - 4" 6' - 0" 5' - 0 " 1' - 0 " 12 ' - 0 " 1' - 0 " 5' - 4 " 6' - 0 " 2' - 4 " 2 ' - 4 " 532 SF CAR DRY BAY 1/ 4 " S L O P E ODOD 1/4" SLOPE 1/4" SLOPE1/4" SLOPE1/4" SLOPE 1/4" SLOPE 1/ 4 " S L O P E 1/4" SLOPE1/4" SLOPE 1/ 4 " S L O P E 1/4" SLOPE 1' - 0 " / 1 ' - 0 " 1' - 0 " / 1 ' - 0 " 1'-0" / 1'-0"1'-0" / 1'-0" 1' - 0 " / 1 ' - 0 " 1' - 0 " / 1 ' - 0 " 1'-0" / 1'-0"1'-0" / 1'-0" WALLS BELOW SHOWN DASHED (TYP.) 0771-05 0771-060771-05 0550-13 B1022-C 1070-02 1070-021070-02 1070-02 B1020-D (BR-X): STRUCTURAL BRICK MANUFACTURER: COUNTY MATERIALS PRODUCT: HERITAGE (STRUCTURAL BRICK) COLOR: GRAYSTONE MORTAR COLOR: SPECMIX SM100 GREY (BR-1): 4" X 4" X 16" STRUCTURAL BRICK (BR-2): 8" X 4" X 16" STRUCTURAL BRICK (BR-3): 12" X 4" X 16" STRUCTURAL BRICK (CS-X): CAST STONE MANUFACTURER: MARCSTONE COLOR: DARK SHALE (SEE CAST STONE PROFILES) (MR-1:) STANDING SEAM METAL ROOF: MANUFACTURER: PAC-CLAD PRODUCT: COLOR: AWARD BLUE EXTERIOR MATERIAL LEGEND (CMU-X): -SPLIT FACE CMU MANUFACTURER: COUNTY MATERIALS PRODUCT: SPLIT FACE COLOR: STEEL GRAY (CMU-1): 8" X 8" X 16" (CMU-2): 12" X 8" X 16" (EIFS-1): EXTERIOR FINISH SYSTEM MANUFACTURER: DRYVIT PRODUCT: OUTSULATION PLUS MD COLOR: #SW 7068 GRIZZLE GRAY FINISH: SANDBLAST (GTR-1): PREFINISHED ALUMINUM GUTTER/DOWNSPOUT MANUFACTURER: PAC-CLAD PRODUCT: 5" BEVELED PROFILE GUTTERS COLOR: PACIFIC BLUE (AF-1): PREFINISHED ALUMINUM FASCIA MANUFACTURER: PAC-CLAD PRODUCT: FORMED ALUMINUM COLOR: PACIFIC BLUE (AC-1): PREFINISHED ALUMINUM COPING MANUFACTURER: PAC-CLAD PRODUCT: PAC-TITE COPING-TAPERED COLOR: PACIFIC BLUE (AS-1): PREFINISHED ALUMINUM SOFFIT PANEL MANUFACTURER: PAC-CLAD PRODUCT: VENTED ALUMINUM PANEL COLOR: PACIFIC BLUE c The Redmond Company2021 24056 06.20.2024 Tsunami Express Car Wash Floor Plan & Roof Plan 3/16" = 1'-0" FLOOR PLAN1 3/16" = 1'-0" ROOF PLAN PRESENTATION2 KEYNOTES PER SHEET 0550-13 TAPERED METAL SADDLE (TYP.) 0771-05 PREFINISHED ALUMINUM SCUPPER W/ DOWNSPOUT (TYP.) SEE EXTERIOR MATERIAL LEGEND FOR COLOR. CONNECT TO STORM SEWER; SEE CIVIL DRAWINGS. 0771-06 PREFINISHED ALUMINUM COPING ANCHORED TO EXTERIOR GRADE WOOD BLOCKING 1070-02 PREFABRICATED ALUMINUM CANOPY B1020-D FULLY ADHERED MEMBRANE ROOFING MATERIAL OVER 2 LAYERS OF STAGGERED RIGID INSULATION, 5" TOTAL HEIGHT (R-30 MIN.) AIR BARRIER OVER 8" PRECAST HOLLOW-CORE PLANK. TAPER RIGID INSULATION TO ROOF SCUPPER LOCATIONS PER ROOF PLAN. AT A MINIMUM 1/4 INCH PER FOOT SLOPE. B1022-C STANDING SEAM METAL ROOF ON GRACE HIGH TEMP UNDERLAYMENT OVER 1/2" O.S.B. ROOF SHEATHING ON ENGINEERED METAL TRUSSES W/ BLOCKING, TIES & LATERAL BRACING PER STRUCTURAL DRAWINGS. 53 Item 2. 6 ' - 8"1 0' - 3 "4' - 0 "10 ' - 0" 1 ' - 0 "2' - 0 "1 ' - 0 " 13' - 4" 48' - 4 1/2" c The Redmond Company2021 24056 07.17.24 Tsunami Express Car Wash DE_Sales Booth -2 Lane_Presentation 3/8" = 1'-0" SALES BOOTH -FLOOR PLAN1 3/8" = 1'-0" SALES BOOTH -ROOF PLAN2 54 Item 2. 4' - 8" 2' - 8" 7 ' - 4 "4 ' - 0 "2 ' - 0 " 10' - 2" 1 ' - 4 "1 0' - 0 "2 ' - 0 " 4' - 8" 2' - 4" 7' - 0" 9' - 10" 10' - 2" 6' - 8 "11 ' - 3"2' - 0 "1 1 ' - 0 " c The Redmond Company2021 24056 07.17.24 Tsunami Express Car Wash DE_Sales Booth -2 Lane_Presentation 1/2" = 1'-0" SALES 2 LANE -BACK ELEV4 1/2" = 1'-0" SALES -2 LANE FRONT ELEV3 1/2" = 1'-0" SALES 2 LANE -APPROACH1 1/2" = 1'-0" SALES BOOTH -SALES LANE ELEVATION2 SALES BOOTH -3D VIEW5 55 Item 2. 10' - 1 1" 4' - 0" 8' - 0" 1 1 ' - 4 " 1/2" = 1'-0" H_PUMP HOUSE -FLOOR PLAN PRESENTATION3 1/2" = 1'-0" H_PUMP HOUSE -ROOF PLAN PRESENTATION1 1/2" = 1'-0" H_PUMP HOUSE -FRONT ELEVATION PRESENTATION2 3D -PUMP Only4 c The Redmond Company2021 24023 06.07.2024 Tsunami Express Car Wash SEP_Pump Bldg_Presentation 56 Item 2. 1 3 ' - 6 " 8' - 0" 6' - 11" 4' - 0" 8 " c The Redmond Company2021 24023 06.07.2024 Tsunami Express Car Wash SEP_Trash Bldg_Presentation 1/2" = 1'-0" H_TRASH ENCLOSURE -PLAN PRESENTATION1 1/2" = 1'-0" H_TRASH ENCLOSURE -FRONT ELEVATION PRESENTATION2 3D -TRASH Only3 57 Item 2. TSUNAMI CAR WASH ORDER TITLE:5151 W. SCHROTH LANE GRAND CHUTE DRAWING DATE PROJECT TITLE: CITY COUNTY PROJECT MGR. REP06/02/23 WISCONSINSTATE CODE ZIP54914 OUTAGAMIE DAVE C. 58 Item 2. SECONDARY MONUMENT SIGN GENERAL NOTES: ILLUMINATED: YESS/F OR D/F: D/F EXACT INSTALL LOCATION TO BE COORDINATED WITH G.C. ELECTRIC TO INSTALL LOCATION TO BE COORDINATED WITH E.C. AND TO BE PROVIDED BY THE E.C. NOTES: CABINET: D/F INTERNALLY ILLUMINATED CABINET. 1’-0” DEEP. ALUMINUM FACES & RETURNS OVER ALUMINUM ANGLE FRAME. FACES & OUTER RETURN TO HAVE A PAINTED TEXTURED FINISH. FACES TO HAVE ROUTED OUT W/ PUSHED THRU ACRYLIC COPYGRAPHICS. PUSHED THRU ACRYLIC TO BE CLEAR W/ APPLIED TRANS. VINYL OVERLAID ONTO THE FACES. INTERNALILLUMINATION TO BE WHITE LED’S. CABINET MOUNTED TO INSIDE OF BRICK COLUMN & BOTTOM CABINET VIA INTERNAL MAIN STEEL SUPPORT. LOGO CABINETS: (2) S/F INTERNALLY ILLUMINATED 5” DEEP FAB’D CHANNEL CABINET. RETURNS & BACKS TO BE ALUMINUM & TOHAVE A PAINTED FINISH. FACES TO BE TRANS. WHITE ACRYLIC WITH APPLIED VINYL GRAPHICS. FACES ATTACHED TO RETURNSVIA 1” PLASTIC TRIM CAP. TRIM CAP FINISH TO MATCH RETURNS FINISH. INTERNALLY ILLUMINATED VIA WHITE LED’S. MOUNTED TO TOP CABINET. ACCENT MOLDING: ALUMINUM TUBE DIMENSIONAL MOLDING. MOLDING TO HAVE A PAINTED FINISH. MOLDING MOUNTED TO CABINET FACE & OUTER RETURNS. BRICK BASE: FAB’D STEEL FRAME WITH CEMENT BOARD CLADDING & BRICK VENEER W/ MORTAR. MOUNTED TO CONCRETE SLAB. BRICK VENEER TO MATCH BRICK ON EXISTING BUILDING. CAP TO BE FAB’D ALUMINUM WITH A PAINTED FINISH. BRICK COLUMN: FAB’D STEEL FRAME WITH CEMENT BOARD CLADDING & BRICK VENEER W/ MORTAR. MOUNTED TO TOP OF BRICK BASE.INTERIOR OF COLUMN TO HAVE A STEEL TUBE SUPPORT. BRICK VENEER TO MATCH BRICK ON EXISTING BUILDING. 1 ELEVATION VIEW SCALE: 1/2” = 1’ - 0” 1 2 3 PAINTED FINISHES: MN-2 TSUNAMI CAR WASH ORDER TITLE:REBRAND MENASHA DRAWING DATE PROJECT TITLE: ENGINEER OF RECORD SEAL: CITY COUNTY PROJECT MGR.GABLE REP DWG. NO. PROJECT NO.QTY. SHEET PRODUCT TYPE: TASK NO. DRAWING TYPE: 13323CH 93745 CONCEPTUAL 6 OF 20 01/05/23 WISCONSINSTATE CODE ZIP54952 WINNEBAGO JACK L. REVISION HISTORY NO.DATE PREV DRWG DESCRIPTION ENGINEER OF RECORD SIGNATURE/DATE: 1233633 SECONDARY MONUMENT SIGN 4' - 6 ¾" 1 ½" 6" 4 ½" 5' - 6 ¾" 1'-7" 1'-10" 2'-3" 1 2 3 4 4 5 P-03 - TO MATCH PMS 2382 C (BLUE) P-07 - TO MATCH EXISTING BUILDING (TBD) V-05 - DIGITALLY PRINTED ON 3M 7725-10 WHITE VINYL TO MATCH PMS 7548 XGC (YELLOW) V-02 - 3M 7725-10 WHITE V-03 - DIGITALLY PRINTED ON 3M 7725-10 WHITE VINYL TO MATCH PMS 2382 C (BLUE) V-04 - DIGITALLY PRINTED ON 3M 7725-10 WHITE VINYL TO MATCH PMS 915 U (LT. BLUE) VINYLS: 3 VINYL CALL OUTS SCALE: 1/2” = 1’ - 0” V-07 - DIGITALLY PRINTED ON 3M 7725-10 WHITE VINYL TO MATCH 33% OF PMS 915 U (LT. BLUE) V-08 - DIGITALLY PRINTED ON 3M 7725-10 WHITE VINYL TO MATCH 10% OF PMS 915 U (LT. BLUE) V-05 V-08 V-07 V-03 V-04 V-02 V-03 V-02 P-03 P-07 FACES & RETURNS(TEXTURED FINISH) ALL SURFACES P-07 CAP P-03 RETURNS & TRIM CAP 3'-0" Ø 6'-7" 8'-3" 6' - 8 " TSUNAMI CAR WASH ORDER TITLE:5151 W. SCHROTH LANE GRAND CHUTE DRAWING DATE PROJECT TITLE: CITY COUNTY PROJECT MGR. REP06/02/23 WISCONSINSTATE CODE ZIP54914 OUTAGAMIE DAVE C. 59 Item 2. TSUNAMI CAR WASH ORDER TITLE:5151 W. SCHROTH LANE GRAND CHUTE DRAWING DATE PROJECT TITLE: CITY COUNTY PROJECT MGR. REP06/02/23 WISCONSINSTATE CODE ZIP54914 OUTAGAMIE DAVE C. 60 Item 2. TSUNAMI CAR WASH ORDER TITLE:5151 W. SCHROTH LANE GRAND CHUTE DRAWING DATE PROJECT TITLE: CITY COUNTY PROJECT MGR. REP06/02/23 WISCONSINSTATE CODE ZIP54914 OUTAGAMIE DAVE C. 61 Item 2. TSUNAMI CAR WASH ORDER TITLE:5151 W. SCHROTH LANE GRAND CHUTE DRAWING DATE PROJECT TITLE: CITY COUNTY PROJECT MGR. REP06/02/23 WISCONSINSTATE CODE ZIP54914 OUTAGAMIE DAVE C. 62 Item 2. TSUNAMI CAR WASH ORDER TITLE:5151 W. SCHROTH LANE GRAND CHUTE DRAWING DATE PROJECT TITLE: CITY COUNTY PROJECT MGR. REP06/02/23 WISCONSINSTATE CODE ZIP54914 OUTAGAMIE DAVE C. 63 Item 2. TSUNAMI CAR WASH ORDER TITLE:5151 W. SCHROTH LANE GRAND CHUTE DRAWING DATE PROJECT TITLE: CITY COUNTY PROJECT MGR. REP06/02/23 WISCONSINSTATE CODE ZIP54914 OUTAGAMIE DAVE C. 64 Item 2. TSUNAMI CAR WASH ORDER TITLE:5151 W. SCHROTH LANE GRAND CHUTE DRAWING DATE PROJECT TITLE: CITY COUNTY PROJECT MGR. REP06/02/23 WISCONSINSTATE CODE ZIP54914 OUTAGAMIE DAVE C. 65 Item 2. TSUNAMI CAR WASH ORDER TITLE:5151 W. SCHROTH LANE GRAND CHUTE DRAWING DATE PROJECT TITLE: CITY COUNTY PROJECT MGR. REP06/02/23 WISCONSINSTATE CODE ZIP54914 OUTAGAMIE DAVE C. 66 Item 2. TSUNAMI CAR WASH ORDER TITLE:5151 W. SCHROTH LANE GRAND CHUTE DRAWING DATE PROJECT TITLE: CITY COUNTY PROJECT MGR. REP06/02/23 WISCONSINSTATE CODE ZIP54914 OUTAGAMIE DAVE C. 67 Item 2. # D a t e C o m m e n t s Revisions Da t e : 7 / 3 1 / 2 0 2 4 24x36 These drawings are for conceptual use only and are not intended for construction. Fixture runs and quantities should be verified prior to order. Values represented are an approximation generated from manufacturers photometric inhouse or independent lab tests with data supplied by lamp manufacturers. Ts u n a m i C a r W a s h Co l u m b i a H e i g h t s Dr a w n B y : J o e F r e y Sa l e s A g e n t : S t e v e H a h n Sc a l e : 1 " = 1 6 ' LS952-4209 Scale: 1 inch= 16 Ft. NO PARKING WP8B MH = 8ft WP8B MH = 8ft WP8B MH = 8ftMH = 8ft WP8BWP8B MH = 8ft WP8B MH = 8ft WP8B MH = 8ft MH = 8ft WP8A WP8A MH = 8ft WP8A MH = 8ft WP8A MH = 8ft WP8A MH = 8ft WP12 MH = 12ft WP12 MH = 12ft MH = 10ft R R MH = 10ft R MH = 10ft R MH = 10ft MH = 10ft R R MH = 10ft R MH = 10ft R MH = 10ft SCM MH = 12ft SCM MH = 12ft 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0.3 0.3 0.2 0.0 0.0 0.0 1.3 1.3 0.8 0.0 0.0 0.0 6.1 6.0 3.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.4 1.7 9.0 20.3 20.2 8.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.3 1.4 5.8 11.8 11.7 5.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.2 0.6 1.6 2.6 2.5 1.5 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.3 0.5 0.6 0.6 0.4 0.0 0.0 0.1 0.1 0.3 0.4 0.4 0.4 0.4 0.2 0.2 0.3 0.2 0.3 0.4 0.4 0.4 0.5 0.4 0.3 0.2 0.1 0.0 0.0 0.1 0.4 2.5 5.7 2.9 3.7 5.5 1.5 1.9 4.9 1.6 1.8 5.7 3.3 3.1 5.8 2.1 0.4 0.1 0.1 0.0 0.1 0.2 0.6 5.7 33.2 12.8 13.2 30.7 1.8 3.1 29.0 2.1 2.6 33.6 12.6 13.6 35.3 3.8 0.6 0.2 0.1 0.0 0.1 0.4 1.4 2.4 2.3 1.3 0.3 0.1 0.0 0.1 0.7 3.5 12.3 10.4 3.0 0.6 0.1 0.0 0.1 0.7 3.6 12.6 11.2 3.1 0.6 0.1 0.0 0.1 0.4 1.5 4.2 7.6 1.4 8.5 1.0 2.4 7.0 9.0 5.3 4.0 1.4 8.4 1.3 8.5 3.7 1.4 0.3 0.1 0.0 0.1 0.2 0.5 1.0 1.2 0.8 1.3 0.6 0.8 1.6 1.9 1.6 1.1 0.7 1.3 0.8 1.3 1.0 0.5 0.2 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 N.A. AvgUnitsCalcTypeLabel Max Calculation Summary N.A.0.035.32.18FcIlluminanceCalcPts_1 Max/MinAvg/MinMin WP8A5 Single 4053 0.900 WPSLS-04L-40 37.05 185.25 MH = 8ft TagLum. Watts 2 SCM Luminaire Schedule Symbol Qty Total WattsLabelArrangementLum. Lumens LLF Description 7983Single 0.900 SCM-LED-08L-SC-40 55.4 110.8 MH = 12ft 58.14 116.28 MH = 12ft0.900 WPSLL-06L-402WP12 0.9008RSingle LAD6R_LCD6-LED-14L-40-WF-TR6RL-HAZ 14 112 MH = 10ft976 Single 6957 WP8B Single 1286 0.900 WPSLS-01L-40 12.34 86.38 MH = 8ft7 68 Item 2. Civil Site Group, PC • 5000 Glenwood Ave • Golden Valley • Minnesota • 55422 www.CivilSiteGroup.com • (612) 615-0060 Stormwater Management Memo Developer: Tsunami Express Car Wash 4800 Meadows Road, Suite #300 Lake Oswego, OR 97035 Project: Tsunami Express Car Wash - Mankato 999 50th Avenue NE Columbia Heights, MN 55421 Engineer’s Certification: All plans and supporting Documentation contained in this report have been reviewed by me and it is hereby certified that to the best of my knowledge the plans comply with the requirements of the ordinance. I hereby certify that this report was prepared by me or under my direct supervision and that I am a duly Registered Professional Engineer under the laws of the State of Minnesota. David J. Knaeble P.E. Registration Number: 48776 Date: 8/5/2024 69 Item 2. www.CivilSiteGroup.com 5000 Glenwood Ave • Golden Valley • Minnesota • 55422 (612) 615-0060 Table of Contents: 1.0 Cover Sheet, Engineer’s Certification 2.0 Summary Analysis / Narrative 2.1 Introduction 2.2 Existing Site Conditions 2.3 Proposed Site Conditions 2.4 Stormwater Requirements – City 2.5 Stormwater Requirements – Watershed District 2.6 Stormwater Requirements – MPCA / NPDES 3.0 Stormwater Calculations 3.1 Proposed Stormwater Management Strategy & Facilities Description 3.2 Rate Control 3.3 Volume Control 3.4 Water Quality 4.0 Conclusions Figures: Figure 1 – Drainage Calculations Summary Table Figure 2 – Existing Conditions Drainage Area Map Figure 3 – Proposed Conditions Drainage Area Map Appendices: HydroCAD Existing Conditions HydroCAD Modeling Proposed Conditions HydroCAD Modeling Storm Sewer Sizing [TO BE PROVIDED AT A FUTURE DATE] o Storm Sewer Sizing Map o Storm Sewer Sizing Spreadsheet Geotechnical Report (On File at the Office of the Engineer) 70 Item 2. www.CivilSiteGroup.com 5000 Glenwood Ave • Golden Valley • Minnesota • 55422 (612) 615-0060 2.0 Summary Analysis / Narrative: 2.1 Introduction: This stormwater management report accompanies the Civil Engineering Plans prepared by Civil Site Group for the subject project dated 8/5/24. This report includes a summary of the existing and proposed site conditions, the stormwater requirements of relevant regulatory agencies, and proposed design calculations and data to meet the requirements. 2.2 Existing Site Conditions : Site Description: The existing site is an office building and parking lot. Below is the existing surface area tabulation. Area [SF] CN Value Area [SF] CN Value Area [SF] CN Value EX1 24929 98 11339 61 36268 86 Existing Conditions Total AreaImpervious AreaDrainage Area Pervious Area Existing Soils: A geotechnical evaluation report has not been completed yet for this project. Based on the soils report from the neighboring ALDI site directly west of the project site, soils in this region are typically silts sands (SM) hydrologic soil group “B” designation. Groundwater: Groundwater has not been analyzed yet for this site and information will be provided once a geotechnical report has been completed. 2.3 Proposed Site Conditions: Site Description: The proposed site is a commercial car wash building with associated parking, landscaping and utility improvements. Below is the proposed surface area tabulation. The proposed site surface coverage areas are shown in the table below: Area [SF] CN Value Area [SF] CN Value Area [SF] CN Value PR1A 15948 98 6368 61 22316 87 PR1B 9743 98 4208 61 13951 87 Pervious Area Total Area Proposed Conditions Drainage Area Impervious Area 2.4 Stormwater Requirements City (Columbia Heights): Requirement threshold - Projects that either create or disturb 1 acre or greater of new impervious will require the submittal of a Stormwater Management Plan. Projects that disturb less than 1 acre and down to 10,000 SF are only required to develop an erosion control plan. Rate Control – Limit peak runoff flow rates to existing conditions for 2-YR, 10-YR, and 100-YR frequency storms (utilize Atlas 14 rainfall data). Water Quality – The water quality control standard shall be considered satisfied if the volume control standard has been satisfied. 71 Item 2. www.CivilSiteGroup.com 5000 Glenwood Ave • Golden Valley • Minnesota • 55422 (612) 615-0060 Volume Control – A proposed development shall capture and retain on site 1.0 inches of runoff from the net new impervious surfaces in post-construction conditions and at a minimum as per the requirements of the NPDES Construction General Permit. This project will not be disturbing over 1.0 acre, so permanent stormwater management is not required per the City Requirements. Per discussions with the City of Columbia Heights Engineering Staff, rate control will still be required. 2.5 Stormwater Requirements Watershed District – (Mississippi Water Management Organization): Requirement threshold – Any project creating greater than one acre of land disturbance. Rate Control – Limit peak runoff flow rates to existing conditions for 2-YR, 10-YR, and 100-YR frequency storms (utilize Atlas 14 rainfall data). Water Quality – The water quality control standard shall be considered satisfied if the volume control standard has been satisfied. Volume Control – For projects without limitations that disturb one or more acre of land, 1.1 inches of runoff from the new and fully reconstructed impervious surfaces shall be captured and retained on site. For projects on sites with limitations, the MWMO Design Sequence Flow Chart shall be used. This project will not be disturbing over 1.0 acre, so permanent stormwater management is not required per the MWMO. 2.6 Stormwater Requirements - Minnesota Pollution Control Agency – NPPDES permit (MPCA): Requirement threshold - A permit is required for projects with a disturbed area over 1 acre in size, Stormwater management is required for a project adding 1-acre of more of NEW impervious surface (reconstructed impervious is not included). Rate Control – No specific regulation, may not degrade downstream facilities. Water Quality – Stormwater water quality treatment volume must be provided equal to 1.0” over all new impervious surfaces (includes all newly constructed impervious surfaces only, re-constructed impervious surfaces are not included). Volume Control – Must consider volume reduction if feasible and not prohibited on site. The required infiltration volume is equal to the water quality volume described above. This project will not be increasing the impervious surface area by over 1.0 acre, so permanent stormwater management is not required per the MPCA. 3.0 Stormwater Calculations: 3.1 Proposed Stormwater Management Strategy & Facilities Description This project is disturbing approximately 0.9 acres of land. The project will be constructing approximately 0.6 acres of new/reconstructed impervious surfaces. This land disturbance and creation of impervious surfaces will not trigger stormwater management requirements from the City of Columbia Heights, the MWMP and for the MPCA NPDES Permit. Per discussions with the City of Columbia Heights Engineering Staff, rate control will still be required. This project is proposing to use an aboveground detention basin to meet the rate control requirements. 3.2 Rate Control Limit peak runoff flow rates to existing conditions for 2-YR, 10-YR, and 100-YR frequency storms (utilize Atlas 14 rainfall data). 72 Item 2. www.CivilSiteGroup.com 5000 Glenwood Ave • Golden Valley • Minnesota • 55422 (612) 615-0060 Rate control is provided by live storage within the proposed aboveground detention basin. This information was derived using HydroCAD stormwater modeling software. The existing and proposed runoff rates are shown in the summary table below. 2-YR [2.84"] 10-YR [4.26"] 100-YR [7.38"] EX1 2.47 4.00 7.60 TOTAL 2.47 4.00 7.60 2-YR [2.84"] 10-YR [4.26"] 100-YR [7.38"] PR1A 1.58 2.55 4.84 1P (PR1B) 0.74 1.01 1.47 TOTAL 2.32 3.56 6.31 Overall Stormwater Rate Summary 2-Year Event 2.47 2.32 10-Year Event 4.00 3.56 100-Year Event 7.60 6.31 Existing Conditions Rate (cfs) Proposed Conditions Rate (cfs) Existing Rate (cfs) Proposed Conditions Rate (cfs) Drainage Area Stormwater Rate Summary Drainage Area The existing project site discharges to 50th Avenue NE. The overall discharge rates from the proposed site will be less than the existing discharge rates in all events. The overall proposed runoff rates are less than the existing peak runoff rates. – REQUIREMENT SATISFIED 3.3 Volume Control Since this project is not disturbing over 1.0 acres of land, volume control is not required. 3.4 Water Quality Since this project is not disturbing over 1.0 acres of land, water quality control is not required. 4.0 Conclusions: To the best of our knowledge, this project meets all State, City and Watershed District stormwater management requirements. 73 Item 2. Civil Site Group - Stormwater Calculations Area [SF] CN Value Area [SF] CN Value Area [SF] CN Value EX1 24929 98 11339 61 36268 86 Area [SF] CN Value Area [SF] CN Value Area [SF] CN Value PR1A 15948 98 6368 61 22316 87 PR1B 9743 98 4208 61 13951 87 Impervious [SF] Impervious [AC] Pervious [SF] Pervious [AC] Total [SF] Total [AC] Existing Site 24929 0.57 11339 0.26 36268 0.83 Proposed Site 25691 0.59 10576 0.24 36267 0.83 2-YR [2.84"] 10-YR [4.26"] 100-YR [7.38"] EX1 2.47 4.00 7.60 TOTAL 2.47 4.00 7.60 2-YR [2.84"] 10-YR [4.26"] 100-YR [7.38"] PR1A 1.58 2.55 4.84 1P (PR1B) 0.74 1.01 1.47 TOTAL 2.32 3.56 6.31 Overall Stormwater Rate Summary 2-Year Event 2.47 2.32 10-Year Event 4.00 3.56 100-Year Event 7.60 6.31 Tsunami Express Car Wash - Columbia Heights Pervious Area Total Area Existing Conditions Proposed Conditions Drainage Area Impervious Area Total AreaImpervious AreaDrainage Area Pervious Area Existing Conditions Rate (cfs) Proposed Conditions Rate (cfs) Site Area Summary Existing Rate (cfs) Proposed Conditions Rate (cfs) Drainage Area Stormwater Rate Summary Drainage Area 74 Item 2. C=22 2 . 8 0 CB=S 7 4 ° 5 9 ' 1 6 " E R=76 6 . 3 5 Δ=16 ° 4 3 ' 0 1 " 223.5 8 S0 0 ° 1 1 ' 4 5 " E 1 4 5 . 3 0 S89°54'47"W 215.00 N0 0 ° 1 1 ' 4 5 " W 2 0 3 . 3 4 (D E S C . = 2 0 3 . 5 6 ) Access Bituminous Parking Lot Bituminous Parking Lot Bituminous Parking Lot Monument Sign Railing Railing 2 Story Brick Building Foundation Area = 6,341 +/- Sq. Ft. Existing Building 12" HDPE 1 2 " H D P E 38.1 7. 9 18.6 4 . 1 6.84 . 2 6.74 . 2 4.9 72 . 0 27.010 . 9 4.26.8 4.26.7 4 . 3 41.9 5 . 3 35 . 6 11.0 29 . 6 8" Sa n i t a r y 8" Sanitary (Per Rec.) 8" S a n i t a r y ( P e r R e c . ) 10" WM (Per Rec.) 10" W M ( P e r R e c . ) 10 " W M ( P e r R e c . ) Wa t . S e r v . (A Pu b l i c R / W ) 50TH A V E N U E N E P.O.B. Found 1/2 Inch Open Iron Pipe Found 1/2 Inch Iron Pipe W/ Cap No. 5065 Found 1/2 Inch Iron Pipe W/ Cap No. 5065 PID: 25-30-24-23-0002 Address: 999 50th Avenue NE 5 11 1 11 18 R=766.35 90.16 12" PVC 4" DT 12" PVC (Per Rec.) 12" PVC EX1 EX IMPV = 24929 SF EX PERV = 11339 SF TOTAL = 36268 SF Project Number: Issue Date: Revision Number: Revision Date: 5000 Glenwood Avenue Golden Valley, MN 55422 612-615-0060 www.CivilSiteGroup.com TSUNAMI EXPRESS CAR WASH - COLUMBIA HEIGHTS 24289 7/29/24 999 50TH AVENUE NE, COLUMBIA HEIGHTS, MN 55421 EXISTING DRAINAGE MAP DA 1 . . 0 1" = 30'-0" 30'-0"15'-0" N 75 Item 2. C=22 2 . 8 0 CB=S 7 4 ° 5 9 ' 1 6 " E R=76 6 . 3 5 Δ=16 ° 4 3 ' 0 1 " 223.5 8 S0 0 ° 1 1 ' 4 5 " E 1 4 5 . 3 0 S89°54'47"W 215.00 N0 0 ° 1 1 ' 4 5 " W 2 0 3 . 3 4 (D E S C . = 2 0 3 . 5 6 ) Concrete Walkway Concrete Walkway Concrete Concrete Walkway Concrete Walkway Co n c r e t e W a l k w a y Concrete Steps Concrete StepsConcrete Steps Concrete Steps Concrete S i d e w a l k Iron Fence Iron Fence Monument Sign Railing Railing Chain Link Fence [A] Chain Link Fence Crosses Property line 12" HDPE 1 2 " H D P E Overhang 8" Sa n i t a r y 8" Sanitary (Per Rec.) 8" S a n i t a r y ( P e r R e c . ) 10" WM (Per Rec.) 10" W M ( P e r R e c . ) 10 " W M ( P e r R e c . ) Wa t . S e r v . (A Pu b l i c R / W ) 50TH A V E N U E N E P.O.B. Found 1/2 Inch Open Iron Pipe Found 1/2 Inch Iron Pipe W/ Cap No. 5065 Found 1/2 Inch Iron Pipe W/ Cap No. 5065 PID: 25-30-24-23-0107 Address: 5025 Central Avenue NE Owner: ALDI INC (Minnesota) PID: 25-30-24-23-0029 Address: 1007 50th Avenue NE Owner: Olson Dean M Etal PID: 25-30-24-23-0028 Address: 1035 Polk PL NE Owner: Koponen Trustee, Robert H PID: 25-30-24-23-0027 Address: 1043 Polk PL NE Owner: Sturdevant Joseph A PID: 25-30-24-23-0026 Address: 1051 Polk PL NE Owner: Sanchez Lopez Cristobal R=766.35 90.16 The E Line of the W 230 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The E Line of the W 445 Feet of the NW 1/4 of Sec. 25, Twp. 30, Rng. 24 The Intersection of a Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 12" PVC 4" DT 12" PVC (Per Rec.) 12" PVC A Line Erected E'ly From a Point 850 Feet N of the SW Corner of Sec. 25, Twp. 30, Rng. 24 RATE CONTROL BASIN 1 PR1B PR IMPV = 9743 SF PR PERV = 4208 SF TOTAL = 13951 SF PR1A PR IMPV = 15948 SF PR PERV = 6368 SF TOTAL = 22316 SF Project Number: Issue Date: Revision Number: Revision Date: 5000 Glenwood Avenue Golden Valley, MN 55422 612-615-0060 www.CivilSiteGroup.com TSUNAMI EXPRESS CAR WASH - COLUMBIA HEIGHTS 24289 7/29/24 999 50TH AVENUE NE, COLUMBIA HEIGHTS, MN 55421 PROPOSED DRAINAGE MAP DA 2 . . 0 1" = 30'-0" 30'-0"15'-0" N 76 Item 2. EX1 EX1 - DRAINS SOUTH TO 50TH AVE. Routing Diagram for 24289 - TSUNAMI COLUMBIA HEIGHTS EXISTING Prepared by Civil Site Group, Printed 7/29/2024 HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Subcat Reach Pond Link 77 Item 2. 24289 - TSUNAMI COLUMBIA HEIGHTS EXISTING Printed 7/29/2024Prepared by Civil Site Group Page 2HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Rainfall Events Listing Event# Event Name Storm Type Curve Mode Duration (hours) B/B Depth (inches) AMC 1 2y 24hr AT-14 MSE 24-hr 3 Default 24.00 1 2.84 2 2 10y 24hr AT-14 MSE 24-hr 3 Default 24.00 1 4.26 2 3 100y 24hr AT-14 MSE 24-hr 3 Default 24.00 1 7.38 2 78 Item 2. 24289 - TSUNAMI COLUMBIA HEIGHTS EXISTING Printed 7/29/2024Prepared by Civil Site Group Page 3HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (acres) CN Description (subcatchment-numbers) 0.234 61 >75% Grass cover, Good, HSG B (EX1) 0.572 98 Paved parking, HSG B (EX1) 0.806 87 TOTAL AREA 79 Item 2. 24289 - TSUNAMI COLUMBIA HEIGHTS EXISTING Printed 7/29/2024Prepared by Civil Site Group Page 4HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Soil Listing (all nodes) Area (acres) Soil Group Subcatchment Numbers 0.000 HSG A 0.806 HSG B EX1 0.000 HSG C 0.000 HSG D 0.000 Other 0.806 TOTAL AREA 80 Item 2. 24289 - TSUNAMI COLUMBIA HEIGHTS EXISTING Printed 7/29/2024Prepared by Civil Site Group Page 5HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Ground Covers (all nodes) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.000 0.234 0.000 0.000 0.000 0.234 >75% Grass cover, Good EX1 0.000 0.572 0.000 0.000 0.000 0.572 Paved parking EX1 0.000 0.806 0.000 0.000 0.000 0.806 TOTAL AREA 81 Item 2. MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84"24289 - TSUNAMI COLUMBIA HEIGHTS EXISTING Printed 7/29/2024Prepared by Civil Site Group Page 6HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Time span=0.00-240.00 hrs, dt=0.01 hrs, 24001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Runoff Area=35,104 sf 71.01% Impervious Runoff Depth=1.94"Subcatchment EX1: EX1 - DRAINS SOUTH Tc=6.0 min CN=WQ Runoff=2.47 cfs 0.130 af Total Runoff Area = 0.806 ac Runoff Volume = 0.130 af Average Runoff Depth = 1.94" 28.99% Pervious = 0.234 ac 71.01% Impervious = 0.572 ac 82 Item 2. MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84"24289 - TSUNAMI COLUMBIA HEIGHTS EXISTING Printed 7/29/2024Prepared by Civil Site Group Page 7HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment EX1: EX1 - DRAINS SOUTH TO 50TH AVE. Runoff = 2.47 cfs @ 12.13 hrs, Volume= 0.130 af, Depth= 1.94" Routed to nonexistent node EX-DA 1 Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-240.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84" Area (sf) CN Description 24,929 98 Paved parking, HSG B 10,175 61 >75% Grass cover, Good, HSG B 35,104 Weighted Average 10,175 28.99% Pervious Area 24,929 71.01% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment EX1: EX1 - DRAINS SOUTH TO 50TH AVE. Runoff Hydrograph Time (hours) 2402302202102001901801701601501401301201101009080706050403020100 Fl o w ( c f s ) 2 1 0 MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84" Runoff Area=35,104 sf Runoff Volume=0.130 af Runoff Depth=1.94" Tc=6.0 min CN=WQ 2.47 cfs 83 Item 2. MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84"24289 - TSUNAMI COLUMBIA HEIGHTS EXISTING Printed 7/29/2024Prepared by Civil Site Group Page 8HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Hydrograph for Subcatchment EX1: EX1 - DRAINS SOUTH TO 50TH AVE. Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 5.00 0.11 0.00 0.01 10.00 0.39 0.01 0.05 15.00 2.55 1.35 0.06 20.00 2.77 1.54 0.02 25.00 2.84 1.60 0.00 30.00 2.84 1.60 0.00 35.00 2.84 1.60 0.00 40.00 2.84 1.60 0.00 45.00 2.84 1.60 0.00 50.00 2.84 1.60 0.00 55.00 2.84 1.60 0.00 60.00 2.84 1.60 0.00 65.00 2.84 1.60 0.00 70.00 2.84 1.60 0.00 75.00 2.84 1.60 0.00 80.00 2.84 1.60 0.00 85.00 2.84 1.60 0.00 90.00 2.84 1.60 0.00 95.00 2.84 1.60 0.00 100.00 2.84 1.60 0.00 105.00 2.84 1.60 0.00 110.00 2.84 1.60 0.00 115.00 2.84 1.60 0.00 120.00 2.84 1.60 0.00 125.00 2.84 1.60 0.00 130.00 2.84 1.60 0.00 135.00 2.84 1.60 0.00 140.00 2.84 1.60 0.00 145.00 2.84 1.60 0.00 150.00 2.84 1.60 0.00 155.00 2.84 1.60 0.00 160.00 2.84 1.60 0.00 165.00 2.84 1.60 0.00 170.00 2.84 1.60 0.00 175.00 2.84 1.60 0.00 180.00 2.84 1.60 0.00 185.00 2.84 1.60 0.00 190.00 2.84 1.60 0.00 195.00 2.84 1.60 0.00 200.00 2.84 1.60 0.00 205.00 2.84 1.60 0.00 210.00 2.84 1.60 0.00 215.00 2.84 1.60 0.00 220.00 2.84 1.60 0.00 225.00 2.84 1.60 0.00 230.00 2.84 1.60 0.00 235.00 2.84 1.60 0.00 240.00 2.84 1.60 0.00 84 Item 2. MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26"24289 - TSUNAMI COLUMBIA HEIGHTS EXISTIN Printed 7/29/2024Prepared by Civil Site Group Page 9HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Time span=0.00-240.00 hrs, dt=0.01 hrs, 24001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Runoff Area=35,104 sf 71.01% Impervious Runoff Depth=3.13"Subcatchment EX1: EX1 - DRAINS SOUTH Tc=6.0 min CN=WQ Runoff=4.00 cfs 0.210 af Total Runoff Area = 0.806 ac Runoff Volume = 0.210 af Average Runoff Depth = 3.13" 28.99% Pervious = 0.234 ac 71.01% Impervious = 0.572 ac 85 Item 2. MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26"24289 - TSUNAMI COLUMBIA HEIGHTS EXISTIN Printed 7/29/2024Prepared by Civil Site Group Page 10HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment EX1: EX1 - DRAINS SOUTH TO 50TH AVE. Runoff = 4.00 cfs @ 12.13 hrs, Volume= 0.210 af, Depth= 3.13" Routed to nonexistent node EX-DA 1 Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-240.00 hrs, dt= 0.01 hrs MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26" Area (sf) CN Description 24,929 98 Paved parking, HSG B 10,175 61 >75% Grass cover, Good, HSG B 35,104 Weighted Average 10,175 28.99% Pervious Area 24,929 71.01% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment EX1: EX1 - DRAINS SOUTH TO 50TH AVE. Runoff Hydrograph Time (hours) 2402302202102001901801701601501401301201101009080706050403020100 Fl o w ( c f s ) 4 3 2 1 0 MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26" Runoff Area=35,104 sf Runoff Volume=0.210 af Runoff Depth=3.13" Tc=6.0 min CN=WQ 4.00 cfs 86 Item 2. MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26"24289 - TSUNAMI COLUMBIA HEIGHTS EXISTIN Printed 7/29/2024Prepared by Civil Site Group Page 11HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Hydrograph for Subcatchment EX1: EX1 - DRAINS SOUTH TO 50TH AVE. Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 5.00 0.16 0.00 0.02 10.00 0.59 0.05 0.08 15.00 3.82 2.47 0.10 20.00 4.15 2.77 0.03 25.00 4.26 2.88 0.00 30.00 4.26 2.88 0.00 35.00 4.26 2.88 0.00 40.00 4.26 2.88 0.00 45.00 4.26 2.88 0.00 50.00 4.26 2.88 0.00 55.00 4.26 2.88 0.00 60.00 4.26 2.88 0.00 65.00 4.26 2.88 0.00 70.00 4.26 2.88 0.00 75.00 4.26 2.88 0.00 80.00 4.26 2.88 0.00 85.00 4.26 2.88 0.00 90.00 4.26 2.88 0.00 95.00 4.26 2.88 0.00 100.00 4.26 2.88 0.00 105.00 4.26 2.88 0.00 110.00 4.26 2.88 0.00 115.00 4.26 2.88 0.00 120.00 4.26 2.88 0.00 125.00 4.26 2.88 0.00 130.00 4.26 2.88 0.00 135.00 4.26 2.88 0.00 140.00 4.26 2.88 0.00 145.00 4.26 2.88 0.00 150.00 4.26 2.88 0.00 155.00 4.26 2.88 0.00 160.00 4.26 2.88 0.00 165.00 4.26 2.88 0.00 170.00 4.26 2.88 0.00 175.00 4.26 2.88 0.00 180.00 4.26 2.88 0.00 185.00 4.26 2.88 0.00 190.00 4.26 2.88 0.00 195.00 4.26 2.88 0.00 200.00 4.26 2.88 0.00 205.00 4.26 2.88 0.00 210.00 4.26 2.88 0.00 215.00 4.26 2.88 0.00 220.00 4.26 2.88 0.00 225.00 4.26 2.88 0.00 230.00 4.26 2.88 0.00 235.00 4.26 2.88 0.00 240.00 4.26 2.88 0.00 87 Item 2. MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38"24289 - TSUNAMI COLUMBIA HEIGHTS EXISTI Printed 7/29/2024Prepared by Civil Site Group Page 12HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Time span=0.00-240.00 hrs, dt=0.01 hrs, 24001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Runoff Area=35,104 sf 71.01% Impervious Runoff Depth=5.93"Subcatchment EX1: EX1 - DRAINS SOUTH Tc=6.0 min CN=WQ Runoff=7.60 cfs 0.399 af Total Runoff Area = 0.806 ac Runoff Volume = 0.399 af Average Runoff Depth = 5.93" 28.99% Pervious = 0.234 ac 71.01% Impervious = 0.572 ac 88 Item 2. MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38"24289 - TSUNAMI COLUMBIA HEIGHTS EXISTI Printed 7/29/2024Prepared by Civil Site Group Page 13HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment EX1: EX1 - DRAINS SOUTH TO 50TH AVE. Runoff = 7.60 cfs @ 12.13 hrs, Volume= 0.399 af, Depth= 5.93" Routed to nonexistent node EX-DA 1 Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-240.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38" Area (sf) CN Description 24,929 98 Paved parking, HSG B 10,175 61 >75% Grass cover, Good, HSG B 35,104 Weighted Average 10,175 28.99% Pervious Area 24,929 71.01% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment EX1: EX1 - DRAINS SOUTH TO 50TH AVE. Runoff Hydrograph Time (hours) 2402302202102001901801701601501401301201101009080706050403020100 Fl o w ( c f s ) 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38" Runoff Area=35,104 sf Runoff Volume=0.399 af Runoff Depth=5.93" Tc=6.0 min CN=WQ 7.60 cfs 89 Item 2. MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38"24289 - TSUNAMI COLUMBIA HEIGHTS EXISTI Printed 7/29/2024Prepared by Civil Site Group Page 14HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Hydrograph for Subcatchment EX1: EX1 - DRAINS SOUTH TO 50TH AVE. Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 5.00 0.28 0.00 0.04 10.00 1.01 0.23 0.15 15.00 6.62 5.11 0.18 20.00 7.19 5.66 0.06 25.00 7.38 5.85 0.00 30.00 7.38 5.85 0.00 35.00 7.38 5.85 0.00 40.00 7.38 5.85 0.00 45.00 7.38 5.85 0.00 50.00 7.38 5.85 0.00 55.00 7.38 5.85 0.00 60.00 7.38 5.85 0.00 65.00 7.38 5.85 0.00 70.00 7.38 5.85 0.00 75.00 7.38 5.85 0.00 80.00 7.38 5.85 0.00 85.00 7.38 5.85 0.00 90.00 7.38 5.85 0.00 95.00 7.38 5.85 0.00 100.00 7.38 5.85 0.00 105.00 7.38 5.85 0.00 110.00 7.38 5.85 0.00 115.00 7.38 5.85 0.00 120.00 7.38 5.85 0.00 125.00 7.38 5.85 0.00 130.00 7.38 5.85 0.00 135.00 7.38 5.85 0.00 140.00 7.38 5.85 0.00 145.00 7.38 5.85 0.00 150.00 7.38 5.85 0.00 155.00 7.38 5.85 0.00 160.00 7.38 5.85 0.00 165.00 7.38 5.85 0.00 170.00 7.38 5.85 0.00 175.00 7.38 5.85 0.00 180.00 7.38 5.85 0.00 185.00 7.38 5.85 0.00 190.00 7.38 5.85 0.00 195.00 7.38 5.85 0.00 200.00 7.38 5.85 0.00 205.00 7.38 5.85 0.00 210.00 7.38 5.85 0.00 215.00 7.38 5.85 0.00 220.00 7.38 5.85 0.00 225.00 7.38 5.85 0.00 230.00 7.38 5.85 0.00 235.00 7.38 5.85 0.00 240.00 7.38 5.85 0.00 90 Item 2. PR1A PR1A - DRAINS SOUTH TO 5OTH AVE PR1B PR1B - DRAINS TO DETENTION BASIN THEN SOUTH TO 5OTH AVE 1P 1P - DETENTION BASIN Routing Diagram for 24289 - TSUNAMI COLUMBIA HEIGHTS PROPOSED Prepared by Civil Site Group, Printed 7/29/2024 HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Subcat Reach Pond Link 91 Item 2. 24289 - TSUNAMI COLUMBIA HEIGHTS PROPOSED Printed 7/29/2024Prepared by Civil Site Group Page 2HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Rainfall Events Listing Event# Event Name Storm Type Curve Mode Duration (hours) B/B Depth (inches) AMC 1 2y 24hr AT-14 MSE 24-hr 3 Default 24.00 1 2.84 2 2 10y 24hr AT-14 MSE 24-hr 3 Default 24.00 1 4.26 2 3 100y 24hr AT-14 MSE 24-hr 3 Default 24.00 1 7.38 2 92 Item 2. 24289 - TSUNAMI COLUMBIA HEIGHTS PROPOSED Printed 7/29/2024Prepared by Civil Site Group Page 3HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (acres) CN Description (subcatchment-numbers) 0.243 61 >75% Grass cover, Good, HSG B (PR1A, PR1B) 0.590 98 Paved parking, HSG B (PR1A, PR1B) 0.833 87 TOTAL AREA 93 Item 2. 24289 - TSUNAMI COLUMBIA HEIGHTS PROPOSED Printed 7/29/2024Prepared by Civil Site Group Page 4HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Soil Listing (all nodes) Area (acres) Soil Group Subcatchment Numbers 0.000 HSG A 0.833 HSG B PR1A, PR1B 0.000 HSG C 0.000 HSG D 0.000 Other 0.833 TOTAL AREA 94 Item 2. 24289 - TSUNAMI COLUMBIA HEIGHTS PROPOSED Printed 7/29/2024Prepared by Civil Site Group Page 5HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Ground Covers (all nodes) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.000 0.243 0.000 0.000 0.000 0.243 >75% Grass cover, Good PR1A, PR1B 0.000 0.590 0.000 0.000 0.000 0.590 Paved parking PR1A, PR1B 0.000 0.833 0.000 0.000 0.000 0.833 TOTAL AREA 95 Item 2. MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84"24289 - TSUNAMI COLUMBIA HEIGHTS PROPOS Printed 7/29/2024Prepared by Civil Site Group Page 6HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Time span=0.00-240.00 hrs, dt=0.01 hrs, 24001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Runoff Area=22,316 sf 71.46% Impervious Runoff Depth=1.95"Subcatchment PR1A: PR1A - DRAINS Tc=6.0 min CN=WQ Runoff=1.58 cfs 0.083 af Runoff Area=13,951 sf 69.84% Impervious Runoff Depth=1.91"Subcatchment PR1B: PR1B - DRAINS TO Tc=6.0 min CN=WQ Runoff=0.97 cfs 0.051 af Peak Elev=930.23' Storage=321 cf Inflow=0.97 cfs 0.051 afPond 1P: 1P - DETENTION BASIN Outflow=0.74 cfs 0.051 af Total Runoff Area = 0.833 ac Runoff Volume = 0.134 af Average Runoff Depth = 1.94" 29.16% Pervious = 0.243 ac 70.84% Impervious = 0.590 ac 96 Item 2. MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84"24289 - TSUNAMI COLUMBIA HEIGHTS PROPOS Printed 7/29/2024Prepared by Civil Site Group Page 7HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment PR1A: PR1A - DRAINS SOUTH TO 5OTH AVE Runoff = 1.58 cfs @ 12.13 hrs, Volume= 0.083 af, Depth= 1.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-240.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84" Area (sf) CN Description 15,948 98 Paved parking, HSG B 6,368 61 >75% Grass cover, Good, HSG B 22,316 Weighted Average 6,368 28.54% Pervious Area 15,948 71.46% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment PR1A: PR1A - DRAINS SOUTH TO 5OTH AVE Runoff Hydrograph Time (hours) 2402302202102001901801701601501401301201101009080706050403020100 Fl o w ( c f s ) 1 0 MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84" Runoff Area=22,316 sf Runoff Volume=0.083 af Runoff Depth=1.95" Tc=6.0 min CN=WQ 1.58 cfs 97 Item 2. MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84"24289 - TSUNAMI COLUMBIA HEIGHTS PROPOS Printed 7/29/2024Prepared by Civil Site Group Page 8HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Hydrograph for Subcatchment PR1A: PR1A - DRAINS SOUTH TO 5OTH AVE Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 5.00 0.11 0.00 0.01 10.00 0.39 0.01 0.03 15.00 2.55 1.35 0.04 20.00 2.77 1.54 0.01 25.00 2.84 1.60 0.00 30.00 2.84 1.60 0.00 35.00 2.84 1.60 0.00 40.00 2.84 1.60 0.00 45.00 2.84 1.60 0.00 50.00 2.84 1.60 0.00 55.00 2.84 1.60 0.00 60.00 2.84 1.60 0.00 65.00 2.84 1.60 0.00 70.00 2.84 1.60 0.00 75.00 2.84 1.60 0.00 80.00 2.84 1.60 0.00 85.00 2.84 1.60 0.00 90.00 2.84 1.60 0.00 95.00 2.84 1.60 0.00 100.00 2.84 1.60 0.00 105.00 2.84 1.60 0.00 110.00 2.84 1.60 0.00 115.00 2.84 1.60 0.00 120.00 2.84 1.60 0.00 125.00 2.84 1.60 0.00 130.00 2.84 1.60 0.00 135.00 2.84 1.60 0.00 140.00 2.84 1.60 0.00 145.00 2.84 1.60 0.00 150.00 2.84 1.60 0.00 155.00 2.84 1.60 0.00 160.00 2.84 1.60 0.00 165.00 2.84 1.60 0.00 170.00 2.84 1.60 0.00 175.00 2.84 1.60 0.00 180.00 2.84 1.60 0.00 185.00 2.84 1.60 0.00 190.00 2.84 1.60 0.00 195.00 2.84 1.60 0.00 200.00 2.84 1.60 0.00 205.00 2.84 1.60 0.00 210.00 2.84 1.60 0.00 215.00 2.84 1.60 0.00 220.00 2.84 1.60 0.00 225.00 2.84 1.60 0.00 230.00 2.84 1.60 0.00 235.00 2.84 1.60 0.00 240.00 2.84 1.60 0.00 98 Item 2. MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84"24289 - TSUNAMI COLUMBIA HEIGHTS PROPOS Printed 7/29/2024Prepared by Civil Site Group Page 9HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment PR1B: PR1B - DRAINS TO DETENTION BASIN THEN SOUTH TO 5OTH AVE Runoff = 0.97 cfs @ 12.13 hrs, Volume= 0.051 af, Depth= 1.91" Routed to Pond 1P : 1P - DETENTION BASIN Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-240.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84" Area (sf) CN Description 9,743 98 Paved parking, HSG B 4,208 61 >75% Grass cover, Good, HSG B 13,951 Weighted Average 4,208 30.16% Pervious Area 9,743 69.84% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment PR1B: PR1B - DRAINS TO DETENTION BASIN THEN SOUTH TO 5OTH AVE Runoff Hydrograph Time (hours) 2402302202102001901801701601501401301201101009080706050403020100 Fl o w ( c f s ) 1 0 MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84" Runoff Area=13,951 sf Runoff Volume=0.051 af Runoff Depth=1.91" Tc=6.0 min CN=WQ 0.97 cfs 99 Item 2. MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84"24289 - TSUNAMI COLUMBIA HEIGHTS PROPOS Printed 7/29/2024Prepared by Civil Site Group Page 10HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Hydrograph for Subcatchment PR1B: PR1B - DRAINS TO DETENTION BASIN THEN SOUTH TO 5OTH AVE Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 5.00 0.11 0.00 0.00 10.00 0.39 0.01 0.02 15.00 2.55 1.35 0.02 20.00 2.77 1.54 0.01 25.00 2.84 1.60 0.00 30.00 2.84 1.60 0.00 35.00 2.84 1.60 0.00 40.00 2.84 1.60 0.00 45.00 2.84 1.60 0.00 50.00 2.84 1.60 0.00 55.00 2.84 1.60 0.00 60.00 2.84 1.60 0.00 65.00 2.84 1.60 0.00 70.00 2.84 1.60 0.00 75.00 2.84 1.60 0.00 80.00 2.84 1.60 0.00 85.00 2.84 1.60 0.00 90.00 2.84 1.60 0.00 95.00 2.84 1.60 0.00 100.00 2.84 1.60 0.00 105.00 2.84 1.60 0.00 110.00 2.84 1.60 0.00 115.00 2.84 1.60 0.00 120.00 2.84 1.60 0.00 125.00 2.84 1.60 0.00 130.00 2.84 1.60 0.00 135.00 2.84 1.60 0.00 140.00 2.84 1.60 0.00 145.00 2.84 1.60 0.00 150.00 2.84 1.60 0.00 155.00 2.84 1.60 0.00 160.00 2.84 1.60 0.00 165.00 2.84 1.60 0.00 170.00 2.84 1.60 0.00 175.00 2.84 1.60 0.00 180.00 2.84 1.60 0.00 185.00 2.84 1.60 0.00 190.00 2.84 1.60 0.00 195.00 2.84 1.60 0.00 200.00 2.84 1.60 0.00 205.00 2.84 1.60 0.00 210.00 2.84 1.60 0.00 215.00 2.84 1.60 0.00 220.00 2.84 1.60 0.00 225.00 2.84 1.60 0.00 230.00 2.84 1.60 0.00 235.00 2.84 1.60 0.00 240.00 2.84 1.60 0.00 100 Item 2. MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84"24289 - TSUNAMI COLUMBIA HEIGHTS PROPOS Printed 7/29/2024Prepared by Civil Site Group Page 11HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Summary for Pond 1P: 1P - DETENTION BASIN Inflow Area = 0.320 ac, 69.84% Impervious, Inflow Depth = 1.91" for 2y 24hr AT-14 event Inflow = 0.97 cfs @ 12.13 hrs, Volume= 0.051 af Outflow = 0.74 cfs @ 12.18 hrs, Volume= 0.051 af, Atten= 23%, Lag= 2.8 min Primary = 0.74 cfs @ 12.18 hrs, Volume= 0.051 af Routing by Stor-Ind method, Time Span= 0.00-240.00 hrs, dt= 0.01 hrs Peak Elev= 930.23' @ 12.18 hrs Surf.Area= 1,478 sf Storage= 321 cf Plug-Flow detention time= 14.2 min calculated for 0.051 af (100% of inflow) Center-of-Mass det. time= 14.2 min ( 774.3 - 760.1 ) Volume Invert Avail.Storage Storage Description #1 930.00' 3,950 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 930.00 1,347 0 0 930.50 1,634 745 745 931.00 1,937 893 1,638 931.50 2,323 1,065 2,703 932.00 2,665 1,247 3,950 Device Routing Invert Outlet Devices #1 Primary 930.00'8.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=0.74 cfs @ 12.18 hrs HW=930.23' (Free Discharge) 1=Orifice/Grate (Weir Controls 0.74 cfs @ 1.56 fps) 101 Item 2. MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84"24289 - TSUNAMI COLUMBIA HEIGHTS PROPOS Printed 7/29/2024Prepared by Civil Site Group Page 12HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Pond 1P: 1P - DETENTION BASIN Inflow Primary Hydrograph Time (hours) 2402302202102001901801701601501401301201101009080706050403020100 Fl o w ( c f s ) 1 0 Inflow Area=0.320 ac Peak Elev=930.23' Storage=321 cf 0.97 cfs 0.74 cfs 102 Item 2. MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84"24289 - TSUNAMI COLUMBIA HEIGHTS PROPOS Printed 7/29/2024Prepared by Civil Site Group Page 13HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Hydrograph for Pond 1P: 1P - DETENTION BASIN Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Primary (cfs) 0.00 0.00 0 930.00 0.00 5.00 0.00 4 930.00 0.00 10.00 0.02 25 930.02 0.02 15.00 0.02 31 930.02 0.02 20.00 0.01 12 930.01 0.01 25.00 0.00 0 930.00 0.00 30.00 0.00 0 930.00 0.00 35.00 0.00 0 930.00 0.00 40.00 0.00 0 930.00 0.00 45.00 0.00 0 930.00 0.00 50.00 0.00 0 930.00 0.00 55.00 0.00 0 930.00 0.00 60.00 0.00 0 930.00 0.00 65.00 0.00 0 930.00 0.00 70.00 0.00 0 930.00 0.00 75.00 0.00 0 930.00 0.00 80.00 0.00 0 930.00 0.00 85.00 0.00 0 930.00 0.00 90.00 0.00 0 930.00 0.00 95.00 0.00 0 930.00 0.00 100.00 0.00 0 930.00 0.00 105.00 0.00 0 930.00 0.00 110.00 0.00 0 930.00 0.00 115.00 0.00 0 930.00 0.00 120.00 0.00 0 930.00 0.00 125.00 0.00 0 930.00 0.00 130.00 0.00 0 930.00 0.00 135.00 0.00 0 930.00 0.00 140.00 0.00 0 930.00 0.00 145.00 0.00 0 930.00 0.00 150.00 0.00 0 930.00 0.00 155.00 0.00 0 930.00 0.00 160.00 0.00 0 930.00 0.00 165.00 0.00 0 930.00 0.00 170.00 0.00 0 930.00 0.00 175.00 0.00 0 930.00 0.00 180.00 0.00 0 930.00 0.00 185.00 0.00 0 930.00 0.00 190.00 0.00 0 930.00 0.00 195.00 0.00 0 930.00 0.00 200.00 0.00 0 930.00 0.00 205.00 0.00 0 930.00 0.00 210.00 0.00 0 930.00 0.00 215.00 0.00 0 930.00 0.00 220.00 0.00 0 930.00 0.00 225.00 0.00 0 930.00 0.00 230.00 0.00 0 930.00 0.00 235.00 0.00 0 930.00 0.00 240.00 0.00 0 930.00 0.00 103 Item 2. MSE 24-hr 3 2y 24hr AT-14 Rainfall=2.84"24289 - TSUNAMI COLUMBIA HEIGHTS PROPOS Printed 7/29/2024Prepared by Civil Site Group Page 14HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1P: 1P - DETENTION BASIN Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 930.00 1,347 0 930.02 1,358 27 930.04 1,370 54 930.06 1,381 82 930.08 1,393 110 930.10 1,404 138 930.12 1,416 166 930.14 1,427 194 930.16 1,439 223 930.18 1,450 252 930.20 1,462 281 930.22 1,473 310 930.24 1,485 340 930.26 1,496 370 930.28 1,508 400 930.30 1,519 430 930.32 1,531 460 930.34 1,542 491 930.36 1,554 522 930.38 1,565 553 930.40 1,577 585 930.42 1,588 616 930.44 1,600 648 930.46 1,611 680 930.48 1,623 713 930.50 1,634 745 930.52 1,646 778 930.54 1,658 811 930.56 1,670 844 930.58 1,682 878 930.60 1,695 912 930.62 1,707 946 930.64 1,719 980 930.66 1,731 1,014 930.68 1,743 1,049 930.70 1,755 1,084 930.72 1,767 1,119 930.74 1,779 1,155 930.76 1,792 1,191 930.78 1,804 1,227 930.80 1,816 1,263 930.82 1,828 1,299 930.84 1,840 1,336 930.86 1,852 1,373 930.88 1,864 1,410 930.90 1,876 1,447 930.92 1,889 1,485 930.94 1,901 1,523 930.96 1,913 1,561 930.98 1,925 1,599 931.00 1,937 1,638 931.02 1,952 1,677 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 931.04 1,968 1,716 931.06 1,983 1,756 931.08 1,999 1,795 931.10 2,014 1,836 931.12 2,030 1,876 931.14 2,045 1,917 931.16 2,061 1,958 931.18 2,076 1,999 931.20 2,091 2,041 931.22 2,107 2,083 931.24 2,122 2,125 931.26 2,138 2,168 931.28 2,153 2,211 931.30 2,169 2,254 931.32 2,184 2,297 931.34 2,199 2,341 931.36 2,215 2,385 931.38 2,230 2,430 931.40 2,246 2,475 931.42 2,261 2,520 931.44 2,277 2,565 931.46 2,292 2,611 931.48 2,308 2,657 931.50 2,323 2,703 931.52 2,337 2,750 931.54 2,350 2,796 931.56 2,364 2,844 931.58 2,378 2,891 931.60 2,391 2,939 931.62 2,405 2,987 931.64 2,419 3,035 931.66 2,432 3,083 931.68 2,446 3,132 931.70 2,460 3,181 931.72 2,473 3,231 931.74 2,487 3,280 931.76 2,501 3,330 931.78 2,515 3,380 931.80 2,528 3,431 931.82 2,542 3,481 931.84 2,556 3,532 931.86 2,569 3,584 931.88 2,583 3,635 931.90 2,597 3,687 931.92 2,610 3,739 931.94 2,624 3,791 931.96 2,638 3,844 931.98 2,651 3,897 932.00 2,665 3,950 104 Item 2. MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 15HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Time span=0.00-240.00 hrs, dt=0.01 hrs, 24001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Runoff Area=22,316 sf 71.46% Impervious Runoff Depth=3.15"Subcatchment PR1A: PR1A - DRAINS Tc=6.0 min CN=WQ Runoff=2.55 cfs 0.134 af Runoff Area=13,951 sf 69.84% Impervious Runoff Depth=3.10"Subcatchment PR1B: PR1B - DRAINS TO Tc=6.0 min CN=WQ Runoff=1.57 cfs 0.083 af Peak Elev=930.36' Storage=522 cf Inflow=1.57 cfs 0.083 afPond 1P: 1P - DETENTION BASIN Outflow=1.01 cfs 0.083 af Total Runoff Area = 0.833 ac Runoff Volume = 0.217 af Average Runoff Depth = 3.13" 29.16% Pervious = 0.243 ac 70.84% Impervious = 0.590 ac 105 Item 2. MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 16HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment PR1A: PR1A - DRAINS SOUTH TO 5OTH AVE Runoff = 2.55 cfs @ 12.13 hrs, Volume= 0.134 af, Depth= 3.15" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-240.00 hrs, dt= 0.01 hrs MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26" Area (sf) CN Description 15,948 98 Paved parking, HSG B 6,368 61 >75% Grass cover, Good, HSG B 22,316 Weighted Average 6,368 28.54% Pervious Area 15,948 71.46% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment PR1A: PR1A - DRAINS SOUTH TO 5OTH AVE Runoff Hydrograph Time (hours) 2402302202102001901801701601501401301201101009080706050403020100 Fl o w ( c f s ) 2 1 0 MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26" Runoff Area=22,316 sf Runoff Volume=0.134 af Runoff Depth=3.15" Tc=6.0 min CN=WQ 2.55 cfs 106 Item 2. MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 17HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Hydrograph for Subcatchment PR1A: PR1A - DRAINS SOUTH TO 5OTH AVE Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 5.00 0.16 0.00 0.01 10.00 0.59 0.05 0.05 15.00 3.82 2.47 0.06 20.00 4.15 2.77 0.02 25.00 4.26 2.88 0.00 30.00 4.26 2.88 0.00 35.00 4.26 2.88 0.00 40.00 4.26 2.88 0.00 45.00 4.26 2.88 0.00 50.00 4.26 2.88 0.00 55.00 4.26 2.88 0.00 60.00 4.26 2.88 0.00 65.00 4.26 2.88 0.00 70.00 4.26 2.88 0.00 75.00 4.26 2.88 0.00 80.00 4.26 2.88 0.00 85.00 4.26 2.88 0.00 90.00 4.26 2.88 0.00 95.00 4.26 2.88 0.00 100.00 4.26 2.88 0.00 105.00 4.26 2.88 0.00 110.00 4.26 2.88 0.00 115.00 4.26 2.88 0.00 120.00 4.26 2.88 0.00 125.00 4.26 2.88 0.00 130.00 4.26 2.88 0.00 135.00 4.26 2.88 0.00 140.00 4.26 2.88 0.00 145.00 4.26 2.88 0.00 150.00 4.26 2.88 0.00 155.00 4.26 2.88 0.00 160.00 4.26 2.88 0.00 165.00 4.26 2.88 0.00 170.00 4.26 2.88 0.00 175.00 4.26 2.88 0.00 180.00 4.26 2.88 0.00 185.00 4.26 2.88 0.00 190.00 4.26 2.88 0.00 195.00 4.26 2.88 0.00 200.00 4.26 2.88 0.00 205.00 4.26 2.88 0.00 210.00 4.26 2.88 0.00 215.00 4.26 2.88 0.00 220.00 4.26 2.88 0.00 225.00 4.26 2.88 0.00 230.00 4.26 2.88 0.00 235.00 4.26 2.88 0.00 240.00 4.26 2.88 0.00 107 Item 2. MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 18HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment PR1B: PR1B - DRAINS TO DETENTION BASIN THEN SOUTH TO 5OTH AVE Runoff = 1.57 cfs @ 12.13 hrs, Volume= 0.083 af, Depth= 3.10" Routed to Pond 1P : 1P - DETENTION BASIN Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-240.00 hrs, dt= 0.01 hrs MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26" Area (sf) CN Description 9,743 98 Paved parking, HSG B 4,208 61 >75% Grass cover, Good, HSG B 13,951 Weighted Average 4,208 30.16% Pervious Area 9,743 69.84% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment PR1B: PR1B - DRAINS TO DETENTION BASIN THEN SOUTH TO 5OTH AVE Runoff Hydrograph Time (hours) 2402302202102001901801701601501401301201101009080706050403020100 Fl o w ( c f s ) 1 0 MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26" Runoff Area=13,951 sf Runoff Volume=0.083 af Runoff Depth=3.10" Tc=6.0 min CN=WQ 1.57 cfs 108 Item 2. MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 19HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Hydrograph for Subcatchment PR1B: PR1B - DRAINS TO DETENTION BASIN THEN SOUTH TO 5OTH AVE Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 5.00 0.16 0.00 0.01 10.00 0.59 0.05 0.03 15.00 3.82 2.47 0.04 20.00 4.15 2.77 0.01 25.00 4.26 2.88 0.00 30.00 4.26 2.88 0.00 35.00 4.26 2.88 0.00 40.00 4.26 2.88 0.00 45.00 4.26 2.88 0.00 50.00 4.26 2.88 0.00 55.00 4.26 2.88 0.00 60.00 4.26 2.88 0.00 65.00 4.26 2.88 0.00 70.00 4.26 2.88 0.00 75.00 4.26 2.88 0.00 80.00 4.26 2.88 0.00 85.00 4.26 2.88 0.00 90.00 4.26 2.88 0.00 95.00 4.26 2.88 0.00 100.00 4.26 2.88 0.00 105.00 4.26 2.88 0.00 110.00 4.26 2.88 0.00 115.00 4.26 2.88 0.00 120.00 4.26 2.88 0.00 125.00 4.26 2.88 0.00 130.00 4.26 2.88 0.00 135.00 4.26 2.88 0.00 140.00 4.26 2.88 0.00 145.00 4.26 2.88 0.00 150.00 4.26 2.88 0.00 155.00 4.26 2.88 0.00 160.00 4.26 2.88 0.00 165.00 4.26 2.88 0.00 170.00 4.26 2.88 0.00 175.00 4.26 2.88 0.00 180.00 4.26 2.88 0.00 185.00 4.26 2.88 0.00 190.00 4.26 2.88 0.00 195.00 4.26 2.88 0.00 200.00 4.26 2.88 0.00 205.00 4.26 2.88 0.00 210.00 4.26 2.88 0.00 215.00 4.26 2.88 0.00 220.00 4.26 2.88 0.00 225.00 4.26 2.88 0.00 230.00 4.26 2.88 0.00 235.00 4.26 2.88 0.00 240.00 4.26 2.88 0.00 109 Item 2. MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 20HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Summary for Pond 1P: 1P - DETENTION BASIN Inflow Area = 0.320 ac, 69.84% Impervious, Inflow Depth = 3.10" for 10y 24hr AT-14 event Inflow = 1.57 cfs @ 12.13 hrs, Volume= 0.083 af Outflow = 1.01 cfs @ 12.19 hrs, Volume= 0.083 af, Atten= 36%, Lag= 3.8 min Primary = 1.01 cfs @ 12.19 hrs, Volume= 0.083 af Routing by Stor-Ind method, Time Span= 0.00-240.00 hrs, dt= 0.01 hrs Peak Elev= 930.36' @ 12.19 hrs Surf.Area= 1,553 sf Storage= 522 cf Plug-Flow detention time= 13.1 min calculated for 0.083 af (100% of inflow) Center-of-Mass det. time= 13.1 min ( 769.6 - 756.5 ) Volume Invert Avail.Storage Storage Description #1 930.00' 3,950 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 930.00 1,347 0 0 930.50 1,634 745 745 931.00 1,937 893 1,638 931.50 2,323 1,065 2,703 932.00 2,665 1,247 3,950 Device Routing Invert Outlet Devices #1 Primary 930.00'8.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=1.01 cfs @ 12.19 hrs HW=930.36' (Free Discharge) 1=Orifice/Grate (Orifice Controls 1.01 cfs @ 2.89 fps) 110 Item 2. MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 21HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Pond 1P: 1P - DETENTION BASIN Inflow Primary Hydrograph Time (hours) 2402302202102001901801701601501401301201101009080706050403020100 Fl o w ( c f s ) 1 0 Inflow Area=0.320 ac Peak Elev=930.36' Storage=522 cf 1.57 cfs 1.01 cfs 111 Item 2. MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 22HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Hydrograph for Pond 1P: 1P - DETENTION BASIN Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Primary (cfs) 0.00 0.00 0 930.00 0.00 5.00 0.01 8 930.01 0.01 10.00 0.03 36 930.03 0.03 15.00 0.04 42 930.03 0.04 20.00 0.01 19 930.01 0.01 25.00 0.00 1 930.00 0.00 30.00 0.00 0 930.00 0.00 35.00 0.00 0 930.00 0.00 40.00 0.00 0 930.00 0.00 45.00 0.00 0 930.00 0.00 50.00 0.00 0 930.00 0.00 55.00 0.00 0 930.00 0.00 60.00 0.00 0 930.00 0.00 65.00 0.00 0 930.00 0.00 70.00 0.00 0 930.00 0.00 75.00 0.00 0 930.00 0.00 80.00 0.00 0 930.00 0.00 85.00 0.00 0 930.00 0.00 90.00 0.00 0 930.00 0.00 95.00 0.00 0 930.00 0.00 100.00 0.00 0 930.00 0.00 105.00 0.00 0 930.00 0.00 110.00 0.00 0 930.00 0.00 115.00 0.00 0 930.00 0.00 120.00 0.00 0 930.00 0.00 125.00 0.00 0 930.00 0.00 130.00 0.00 0 930.00 0.00 135.00 0.00 0 930.00 0.00 140.00 0.00 0 930.00 0.00 145.00 0.00 0 930.00 0.00 150.00 0.00 0 930.00 0.00 155.00 0.00 0 930.00 0.00 160.00 0.00 0 930.00 0.00 165.00 0.00 0 930.00 0.00 170.00 0.00 0 930.00 0.00 175.00 0.00 0 930.00 0.00 180.00 0.00 0 930.00 0.00 185.00 0.00 0 930.00 0.00 190.00 0.00 0 930.00 0.00 195.00 0.00 0 930.00 0.00 200.00 0.00 0 930.00 0.00 205.00 0.00 0 930.00 0.00 210.00 0.00 0 930.00 0.00 215.00 0.00 0 930.00 0.00 220.00 0.00 0 930.00 0.00 225.00 0.00 0 930.00 0.00 230.00 0.00 0 930.00 0.00 235.00 0.00 0 930.00 0.00 240.00 0.00 0 930.00 0.00 112 Item 2. MSE 24-hr 3 10y 24hr AT-14 Rainfall=4.26"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 23HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1P: 1P - DETENTION BASIN Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 930.00 1,347 0 930.02 1,358 27 930.04 1,370 54 930.06 1,381 82 930.08 1,393 110 930.10 1,404 138 930.12 1,416 166 930.14 1,427 194 930.16 1,439 223 930.18 1,450 252 930.20 1,462 281 930.22 1,473 310 930.24 1,485 340 930.26 1,496 370 930.28 1,508 400 930.30 1,519 430 930.32 1,531 460 930.34 1,542 491 930.36 1,554 522 930.38 1,565 553 930.40 1,577 585 930.42 1,588 616 930.44 1,600 648 930.46 1,611 680 930.48 1,623 713 930.50 1,634 745 930.52 1,646 778 930.54 1,658 811 930.56 1,670 844 930.58 1,682 878 930.60 1,695 912 930.62 1,707 946 930.64 1,719 980 930.66 1,731 1,014 930.68 1,743 1,049 930.70 1,755 1,084 930.72 1,767 1,119 930.74 1,779 1,155 930.76 1,792 1,191 930.78 1,804 1,227 930.80 1,816 1,263 930.82 1,828 1,299 930.84 1,840 1,336 930.86 1,852 1,373 930.88 1,864 1,410 930.90 1,876 1,447 930.92 1,889 1,485 930.94 1,901 1,523 930.96 1,913 1,561 930.98 1,925 1,599 931.00 1,937 1,638 931.02 1,952 1,677 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 931.04 1,968 1,716 931.06 1,983 1,756 931.08 1,999 1,795 931.10 2,014 1,836 931.12 2,030 1,876 931.14 2,045 1,917 931.16 2,061 1,958 931.18 2,076 1,999 931.20 2,091 2,041 931.22 2,107 2,083 931.24 2,122 2,125 931.26 2,138 2,168 931.28 2,153 2,211 931.30 2,169 2,254 931.32 2,184 2,297 931.34 2,199 2,341 931.36 2,215 2,385 931.38 2,230 2,430 931.40 2,246 2,475 931.42 2,261 2,520 931.44 2,277 2,565 931.46 2,292 2,611 931.48 2,308 2,657 931.50 2,323 2,703 931.52 2,337 2,750 931.54 2,350 2,796 931.56 2,364 2,844 931.58 2,378 2,891 931.60 2,391 2,939 931.62 2,405 2,987 931.64 2,419 3,035 931.66 2,432 3,083 931.68 2,446 3,132 931.70 2,460 3,181 931.72 2,473 3,231 931.74 2,487 3,280 931.76 2,501 3,330 931.78 2,515 3,380 931.80 2,528 3,431 931.82 2,542 3,481 931.84 2,556 3,532 931.86 2,569 3,584 931.88 2,583 3,635 931.90 2,597 3,687 931.92 2,610 3,739 931.94 2,624 3,791 931.96 2,638 3,844 931.98 2,651 3,897 932.00 2,665 3,950 113 Item 2. MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 24HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Time span=0.00-240.00 hrs, dt=0.01 hrs, 24001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Runoff Area=22,316 sf 71.46% Impervious Runoff Depth=5.95"Subcatchment PR1A: PR1A - DRAINS Tc=6.0 min CN=WQ Runoff=4.84 cfs 0.254 af Runoff Area=13,951 sf 69.84% Impervious Runoff Depth=5.89"Subcatchment PR1B: PR1B - DRAINS TO Tc=6.0 min CN=WQ Runoff=3.00 cfs 0.157 af Peak Elev=930.77' Storage=1,201 cf Inflow=3.00 cfs 0.157 afPond 1P: 1P - DETENTION BASIN Outflow=1.47 cfs 0.157 af Total Runoff Area = 0.833 ac Runoff Volume = 0.411 af Average Runoff Depth = 5.93" 29.16% Pervious = 0.243 ac 70.84% Impervious = 0.590 ac 114 Item 2. MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 25HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment PR1A: PR1A - DRAINS SOUTH TO 5OTH AVE Runoff = 4.84 cfs @ 12.13 hrs, Volume= 0.254 af, Depth= 5.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-240.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38" Area (sf) CN Description 15,948 98 Paved parking, HSG B 6,368 61 >75% Grass cover, Good, HSG B 22,316 Weighted Average 6,368 28.54% Pervious Area 15,948 71.46% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment PR1A: PR1A - DRAINS SOUTH TO 5OTH AVE Runoff Hydrograph Time (hours) 2402302202102001901801701601501401301201101009080706050403020100 Fl o w ( c f s ) 5 4 3 2 1 0 MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38" Runoff Area=22,316 sf Runoff Volume=0.254 af Runoff Depth=5.95" Tc=6.0 min CN=WQ 4.84 cfs 115 Item 2. MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 26HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Hydrograph for Subcatchment PR1A: PR1A - DRAINS SOUTH TO 5OTH AVE Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 5.00 0.28 0.00 0.03 10.00 1.01 0.23 0.10 15.00 6.62 5.11 0.11 20.00 7.19 5.66 0.04 25.00 7.38 5.85 0.00 30.00 7.38 5.85 0.00 35.00 7.38 5.85 0.00 40.00 7.38 5.85 0.00 45.00 7.38 5.85 0.00 50.00 7.38 5.85 0.00 55.00 7.38 5.85 0.00 60.00 7.38 5.85 0.00 65.00 7.38 5.85 0.00 70.00 7.38 5.85 0.00 75.00 7.38 5.85 0.00 80.00 7.38 5.85 0.00 85.00 7.38 5.85 0.00 90.00 7.38 5.85 0.00 95.00 7.38 5.85 0.00 100.00 7.38 5.85 0.00 105.00 7.38 5.85 0.00 110.00 7.38 5.85 0.00 115.00 7.38 5.85 0.00 120.00 7.38 5.85 0.00 125.00 7.38 5.85 0.00 130.00 7.38 5.85 0.00 135.00 7.38 5.85 0.00 140.00 7.38 5.85 0.00 145.00 7.38 5.85 0.00 150.00 7.38 5.85 0.00 155.00 7.38 5.85 0.00 160.00 7.38 5.85 0.00 165.00 7.38 5.85 0.00 170.00 7.38 5.85 0.00 175.00 7.38 5.85 0.00 180.00 7.38 5.85 0.00 185.00 7.38 5.85 0.00 190.00 7.38 5.85 0.00 195.00 7.38 5.85 0.00 200.00 7.38 5.85 0.00 205.00 7.38 5.85 0.00 210.00 7.38 5.85 0.00 215.00 7.38 5.85 0.00 220.00 7.38 5.85 0.00 225.00 7.38 5.85 0.00 230.00 7.38 5.85 0.00 235.00 7.38 5.85 0.00 240.00 7.38 5.85 0.00 116 Item 2. MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 27HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment PR1B: PR1B - DRAINS TO DETENTION BASIN THEN SOUTH TO 5OTH AVE Runoff = 3.00 cfs @ 12.13 hrs, Volume= 0.157 af, Depth= 5.89" Routed to Pond 1P : 1P - DETENTION BASIN Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-240.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38" Area (sf) CN Description 9,743 98 Paved parking, HSG B 4,208 61 >75% Grass cover, Good, HSG B 13,951 Weighted Average 4,208 30.16% Pervious Area 9,743 69.84% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment PR1B: PR1B - DRAINS TO DETENTION BASIN THEN SOUTH TO 5OTH AVE Runoff Hydrograph Time (hours) 2402302202102001901801701601501401301201101009080706050403020100 Fl o w ( c f s ) 3 2 1 0 MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38" Runoff Area=13,951 sf Runoff Volume=0.157 af Runoff Depth=5.89" Tc=6.0 min CN=WQ 3.00 cfs 117 Item 2. MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 28HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Hydrograph for Subcatchment PR1B: PR1B - DRAINS TO DETENTION BASIN THEN SOUTH TO 5OTH AVE Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 5.00 0.28 0.00 0.02 10.00 1.01 0.23 0.06 15.00 6.62 5.11 0.07 20.00 7.19 5.66 0.02 25.00 7.38 5.85 0.00 30.00 7.38 5.85 0.00 35.00 7.38 5.85 0.00 40.00 7.38 5.85 0.00 45.00 7.38 5.85 0.00 50.00 7.38 5.85 0.00 55.00 7.38 5.85 0.00 60.00 7.38 5.85 0.00 65.00 7.38 5.85 0.00 70.00 7.38 5.85 0.00 75.00 7.38 5.85 0.00 80.00 7.38 5.85 0.00 85.00 7.38 5.85 0.00 90.00 7.38 5.85 0.00 95.00 7.38 5.85 0.00 100.00 7.38 5.85 0.00 105.00 7.38 5.85 0.00 110.00 7.38 5.85 0.00 115.00 7.38 5.85 0.00 120.00 7.38 5.85 0.00 125.00 7.38 5.85 0.00 130.00 7.38 5.85 0.00 135.00 7.38 5.85 0.00 140.00 7.38 5.85 0.00 145.00 7.38 5.85 0.00 150.00 7.38 5.85 0.00 155.00 7.38 5.85 0.00 160.00 7.38 5.85 0.00 165.00 7.38 5.85 0.00 170.00 7.38 5.85 0.00 175.00 7.38 5.85 0.00 180.00 7.38 5.85 0.00 185.00 7.38 5.85 0.00 190.00 7.38 5.85 0.00 195.00 7.38 5.85 0.00 200.00 7.38 5.85 0.00 205.00 7.38 5.85 0.00 210.00 7.38 5.85 0.00 215.00 7.38 5.85 0.00 220.00 7.38 5.85 0.00 225.00 7.38 5.85 0.00 230.00 7.38 5.85 0.00 235.00 7.38 5.85 0.00 240.00 7.38 5.85 0.00 118 Item 2. MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 29HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Summary for Pond 1P: 1P - DETENTION BASIN Inflow Area = 0.320 ac, 69.84% Impervious, Inflow Depth = 5.89" for 100y 24hr AT-14 event Inflow = 3.00 cfs @ 12.13 hrs, Volume= 0.157 af Outflow = 1.47 cfs @ 12.22 hrs, Volume= 0.157 af, Atten= 51%, Lag= 5.4 min Primary = 1.47 cfs @ 12.22 hrs, Volume= 0.157 af Routing by Stor-Ind method, Time Span= 0.00-240.00 hrs, dt= 0.01 hrs Peak Elev= 930.77' @ 12.22 hrs Surf.Area= 1,795 sf Storage= 1,201 cf Plug-Flow detention time= 12.9 min calculated for 0.157 af (100% of inflow) Center-of-Mass det. time= 12.9 min ( 765.3 - 752.3 ) Volume Invert Avail.Storage Storage Description #1 930.00' 3,950 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 930.00 1,347 0 0 930.50 1,634 745 745 931.00 1,937 893 1,638 931.50 2,323 1,065 2,703 932.00 2,665 1,247 3,950 Device Routing Invert Outlet Devices #1 Primary 930.00'8.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=1.47 cfs @ 12.22 hrs HW=930.77' (Free Discharge) 1=Orifice/Grate (Orifice Controls 1.47 cfs @ 4.21 fps) 119 Item 2. MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 30HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Pond 1P: 1P - DETENTION BASIN Inflow Primary Hydrograph Time (hours) 2402302202102001901801701601501401301201101009080706050403020100 Fl o w ( c f s ) 3 2 1 0 Inflow Area=0.320 ac Peak Elev=930.77' Storage=1,201 cf 3.00 cfs 1.47 cfs 120 Item 2. MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 31HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Hydrograph for Pond 1P: 1P - DETENTION BASIN Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Primary (cfs) 0.00 0.00 0 930.00 0.00 5.00 0.02 20 930.01 0.01 10.00 0.06 55 930.04 0.06 15.00 0.07 65 930.05 0.07 20.00 0.02 31 930.02 0.02 25.00 0.00 1 930.00 0.00 30.00 0.00 0 930.00 0.00 35.00 0.00 0 930.00 0.00 40.00 0.00 0 930.00 0.00 45.00 0.00 0 930.00 0.00 50.00 0.00 0 930.00 0.00 55.00 0.00 0 930.00 0.00 60.00 0.00 0 930.00 0.00 65.00 0.00 0 930.00 0.00 70.00 0.00 0 930.00 0.00 75.00 0.00 0 930.00 0.00 80.00 0.00 0 930.00 0.00 85.00 0.00 0 930.00 0.00 90.00 0.00 0 930.00 0.00 95.00 0.00 0 930.00 0.00 100.00 0.00 0 930.00 0.00 105.00 0.00 0 930.00 0.00 110.00 0.00 0 930.00 0.00 115.00 0.00 0 930.00 0.00 120.00 0.00 0 930.00 0.00 125.00 0.00 0 930.00 0.00 130.00 0.00 0 930.00 0.00 135.00 0.00 0 930.00 0.00 140.00 0.00 0 930.00 0.00 145.00 0.00 0 930.00 0.00 150.00 0.00 0 930.00 0.00 155.00 0.00 0 930.00 0.00 160.00 0.00 0 930.00 0.00 165.00 0.00 0 930.00 0.00 170.00 0.00 0 930.00 0.00 175.00 0.00 0 930.00 0.00 180.00 0.00 0 930.00 0.00 185.00 0.00 0 930.00 0.00 190.00 0.00 0 930.00 0.00 195.00 0.00 0 930.00 0.00 200.00 0.00 0 930.00 0.00 205.00 0.00 0 930.00 0.00 210.00 0.00 0 930.00 0.00 215.00 0.00 0 930.00 0.00 220.00 0.00 0 930.00 0.00 225.00 0.00 0 930.00 0.00 230.00 0.00 0 930.00 0.00 235.00 0.00 0 930.00 0.00 240.00 0.00 0 930.00 0.00 121 Item 2. MSE 24-hr 3 100y 24hr AT-14 Rainfall=7.38"24289 - TSUNAMI COLUMBIA HEIGHTS PROPO Printed 7/29/2024Prepared by Civil Site Group Page 32HydroCAD® 10.20-4a s/n 02202 © 2023 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1P: 1P - DETENTION BASIN Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 930.00 1,347 0 930.02 1,358 27 930.04 1,370 54 930.06 1,381 82 930.08 1,393 110 930.10 1,404 138 930.12 1,416 166 930.14 1,427 194 930.16 1,439 223 930.18 1,450 252 930.20 1,462 281 930.22 1,473 310 930.24 1,485 340 930.26 1,496 370 930.28 1,508 400 930.30 1,519 430 930.32 1,531 460 930.34 1,542 491 930.36 1,554 522 930.38 1,565 553 930.40 1,577 585 930.42 1,588 616 930.44 1,600 648 930.46 1,611 680 930.48 1,623 713 930.50 1,634 745 930.52 1,646 778 930.54 1,658 811 930.56 1,670 844 930.58 1,682 878 930.60 1,695 912 930.62 1,707 946 930.64 1,719 980 930.66 1,731 1,014 930.68 1,743 1,049 930.70 1,755 1,084 930.72 1,767 1,119 930.74 1,779 1,155 930.76 1,792 1,191 930.78 1,804 1,227 930.80 1,816 1,263 930.82 1,828 1,299 930.84 1,840 1,336 930.86 1,852 1,373 930.88 1,864 1,410 930.90 1,876 1,447 930.92 1,889 1,485 930.94 1,901 1,523 930.96 1,913 1,561 930.98 1,925 1,599 931.00 1,937 1,638 931.02 1,952 1,677 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 931.04 1,968 1,716 931.06 1,983 1,756 931.08 1,999 1,795 931.10 2,014 1,836 931.12 2,030 1,876 931.14 2,045 1,917 931.16 2,061 1,958 931.18 2,076 1,999 931.20 2,091 2,041 931.22 2,107 2,083 931.24 2,122 2,125 931.26 2,138 2,168 931.28 2,153 2,211 931.30 2,169 2,254 931.32 2,184 2,297 931.34 2,199 2,341 931.36 2,215 2,385 931.38 2,230 2,430 931.40 2,246 2,475 931.42 2,261 2,520 931.44 2,277 2,565 931.46 2,292 2,611 931.48 2,308 2,657 931.50 2,323 2,703 931.52 2,337 2,750 931.54 2,350 2,796 931.56 2,364 2,844 931.58 2,378 2,891 931.60 2,391 2,939 931.62 2,405 2,987 931.64 2,419 3,035 931.66 2,432 3,083 931.68 2,446 3,132 931.70 2,460 3,181 931.72 2,473 3,231 931.74 2,487 3,280 931.76 2,501 3,330 931.78 2,515 3,380 931.80 2,528 3,431 931.82 2,542 3,481 931.84 2,556 3,532 931.86 2,569 3,584 931.88 2,583 3,635 931.90 2,597 3,687 931.92 2,610 3,739 931.94 2,624 3,791 931.96 2,638 3,844 931.98 2,651 3,897 932.00 2,665 3,950 122 Item 2. 123 Item 2. Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Noise Impact Analysis for Proposed Tsunami Car Wash, Columbia Heights , Minnesota Prepared By: Nathan Sevener, Principal Consultant INCE Bd. Cert. Aimee Lalime, Senior Consultant MSME, INCE Anna Catton, Consultant MSAE 23 August 2024 124 Item 2. THIS PAGE INTENTIONALLY LEFT BLANK 125 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 3 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Executive Summary The proposed Tsunami Car in Columbia Heights, Minnesota is planned to operate from 7:00 am and 8:00 pm daily. The Minnesota noise ordinance defines the daytime (7:00 am to 10:00 pm) noise limit for Residential zones at 60 dBA at the property lines. Our calculations indicate that the carwash-related noise levels with the planned layout will not exceed the residential limits with the addition of an 8’ sound barrier along the east and north property lines on top of the planned retaining wall (with the combined height extending 2’ above the top of the car wash entry doors). 126 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 4 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com TABLE OF CONTENTS EXECUTIVE SUMMARY ....................................................................................................................... 3 LIST OF ABBREVIATED TERMS ............................................................................................................. 5 1.0 INTRODUCTION ............................................................................................................................ 6 2.0 MEASUREMENTS .......................................................................................................................... 7 2.1 INSTRUMENTATION .................................................................................................................................. 7 2.2 AMBIENT MEASUREMENTS ....................................................................................................................... 7 2.3 EQUIPMENT MEASUREMENTS ................................................................................................................. 10 3.0 ORDINANCE AND CRITERIA ......................................................................................................... 12 4.0 COMPUTER MODEL CALCULATION OF SOUND LEVELS AROUND CARWASH .................................. 13 5.0 RECOMMENDATIONS ................................................................................................................. 14 6.0 CONCLUSION .............................................................................................................................. 18 APPENDIX A: ACOUSTICAL TERMINOLOGY ....................................................................................... 19 LIST OF FIGURES Figure 1: Proposed Tsunami Express Car Wash, Columbia Heights, Minnesota .......................... 6 Figure 2: Ambient Sound Levels (dBA) Measured at Proposed Car Wash Site ............................ 8 Figure 3: Photos of Sound Level Meter at Two of the Measurement Locations On-Site .............. 9 Figure 4: Waukesha Tsunami Car Wash Exit ............................................................................... 10 Figure 5: Waukesha Tsunami Car Wash Layout .......................................................................... 11 Figure 6: Vacuum Pump House .................................................................................................... 11 Figure 7: Minnesota Noise Ordinance .......................................................................................... 12 Figure 8: 3D Model View ............................................................................................................. 13 Figure 9: Sound Contour Map Predicted Sound Level Propagation – Current Design ................ 14 Figure 10: Sound Contour Map – Tsunami Car Wash Exit Doors Closed with 8-ft Property Line Barrier ................................................................................................................................... 16 Figure 11: Sound Barrier Fence Location ..................................................................................... 17 LIST OF TABLES Table 1: Sound Measurement Equipment ....................................................................................... 7 Table 2: Sound levels Measured at a Waukesha Location (dB) ................................................... 10 Table 3: Measured Vacuum Related Sound Levels at Waukesha Location ................................. 11 127 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 5 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com List of Abbreviated Terms dB Decibel dBA A-weighted Decibels Leq Equivalent Sound Level 128 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 6 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com 1.0 Introduction Soundscape Engineering has completed a sound study for a proposed Tsunami Express Carwash to be located at 999 50th Avenue NE, Columbia Heights, Minnesota. The proposed building will be a 5,000 SF car wash with 18 vacuums, a sales booth, and vacuum pump house. It is our understanding that the car wash will be open 7 days per week from 7:00 am to 8:00 pm. We have collected sound data from past projects with Tsunami, specifically the Tsunami Car Wash in Waukesha, Wisconsin. The loudest noise sources are the blowers inside the car wash and the vacuums/pump house in the parking lot area. We assume that this location will use the same blowers as the Waukesha location. The design is complete and you provided us with a copy of the city submitted design dated 08-05-2024. The Columbia Heights Tsunami Car Wash is bordered by an Aldi Grocery Store and single-family residences. The project plans to lower the grade of the building site. A new retaining wall will be installed on the east side of the site with a 6-foot fence on top of the wall. According to the Waukesha car wash operation manager, a busy hour by industry standards would be 100+ cars per hour. Figure 1: Proposed Tsunami Express Car Wash, Columbia Heights, Minnesota For your reference, there is a brief glossary of pertinent acoustics terminology in Appendix A. 129 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 7 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com 2.0 Measurements The following describes the ambient measurements at the proposed Columbia Heights location and the existing equipment measurements at the Tsunami Car Wash in Waukesha, Wisconsin. 2.1 Instrumentation An NTi Audio model XL2-TA acoustic analyzer with model MC230 microphone and model MA220 preamp was used for all measurements reported here. This system is Class 1 Type Approved, meeting the requirements of IEC 61672 and ANSI S1.4. Table 1: Sound Measurement Equipment Instrument - Location Make Model No. Serial No. Cal Date Sound Level Meter (SLM) - Position 1 NTi XL2-TA A2A-11159-E0 8/10/2023 SLM Microphone NTi MC230 9538 8/10/2023 SLM Preamp NTi MA220 (M2230) 2923 8/10/2023 Sound Level Calibrator Larsen Davis CAL200 10152 03/23/2023 2.2 Ambient Measurements Soundscape visited the proposed Tsunami Car Wash in Columbia Heights, Minnesota on Sunday, August 11th, 2024. A series of 15-minute spot measurements were taken around the proposed Columbia Heights property. Measurements were taken between 4:00 – 5:30 pm. The overall levels at each measurement location are shown in Figure 2. Photos of the onsite measurements are shown in Figure 3. 130 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 8 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Figure 2: Ambient Sound Levels (dBA) Measured at Proposed Car Wash Site 131 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 9 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Figure 3: Photos of Sound Level Meter at Two of the Measurement Locations On-Site 132 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 10 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com 2.3 Equipment Measurements To determine the equipment sound levels, we measured the sound level produced by equipment at the existing Tsunami Car Wash located at 300 W. Sunset Drive in Waukesha, Wisconsin. We understand that the Columbia Heights location will install the same blower system as the Waukesha location. The measured octave band sound levels at the car wash entry and exit are shown in Table 2. Table 2: Sound levels Measured at a Waukesha Tsunami Carwash (dB) Sound Pressure Levels (dB at a 20-foot distance1) per Octave Band Center Frequency, Hz Overall Level (dBA) 31.5 63 125 250 500 1000 2000 4000 8000 Wash Exit, Blowers On, Doors Open 78 80 80 81 89 88 86 82 74 93 Wash Exit, Blowers On, Doors Closed 74 79 77 77 79 73 69 63 53 79 Wash Entrance, Doors Open 73 74 72 69 71 72 71 66 56 76 1) These measurements were made directly in front of the entrance or exit, at a distance of 20 feet. Figure 4: Waukesha Tsunami Car Wash Exit 133 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 11 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Figure 5: Waukesha Tsunami Car Wash Layout Measurements were also taken outside the vacuum pump house and near a car being vacuumed (Figure 6). The pump house is constructed of masonry block and has steel doors with perimeter seals. This construction is advantageous for noise control. We are not aware if the existing vacuum system has a muffler. These measured levels are presented in Table 3. Table 3: Measured Vacuum Related Sound Levels at Waukesha Location Sound Pressure Levels (dB) per Octave Band Center Frequency, Hz Overall level (dBA) 31.5 63 125 250 500 1000 2000 4000 8000 Vacuum Pump House at 3’ Distance 71 75 67 64 60 59 58 55 51 65 Car Vacuuming at Approx. 6’ Distance 70 72 70 66 64 64 68 69 62 74 Figure 6: Vacuum Pump House 134 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 12 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com 3.0 Ordinance and Criteria The project is required to meet the State of Minnesota's Administrative Rules Section 7030.0040 Noise Standards, which we understand to be the City of Columbia Heights’ ordinance: Figure 7: Minnesota Noise Ordinance Residential properties fit into “Noise Area Classification 1” and commercial properties fall into the “Noise Area Classification 2”. The L50 represents the level exceeded 50% of the time, or the median sound level. During peak business hours, the car wash is expected to be in nearly continuous operation, so the L50 is equivalent to the average sound level, or Leq. This means that the car wash measurement levels in Table 2 were used as source levels for Columbia Heights without applying a reduction for related to duration of use. Similarly, the L10 refers to the sound level during the loudest 10% of the time. Since the levels are nearly continuous, the L10 and the L50 are expected to be almost equal. Therefore, the L50 criterion is the most stringent for this project, and will be referred to in this assessment. 135 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 13 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com 4.0 Computer Model Calculation of Sound Levels Around Carwash We modeled the Columbia Heights site and surrounding area in the commercial environmental noise modeling software, SoundPLAN. Site topography, existing and proposed buildings, sound sources, and receiver locations were inputted as elements into the computer model. A 3D view of the propagation model is shown in Figure 8. The red-shaded areas represent sound area sources. We have modeled the worst-case scenario with all vacuum stations in use and the carwash entry door open. We understand that the car wash doors are planned to be open when cars are in the tunnel, which could be nearly continuous during the busiest hours of the week. Vacuum stations are indicated by the red asterisks below. Sources included in the model are based on measurements made at the Waukesha Tsunami and are as follows: • Carwash Entry Door Open • Carwash Exit Door Open and Closed – Blowers On • Vacuum pump house with Sealed metal doors • Car Vacuum Stations (red asterisks) Figure 8: 3D Model View Figure 9 presents the predicted radiated sound levels due to the Tsunami Car Wash. The darkest green shaded area represents areas where the sound levels are below the residential 60 dBA L50 noise ordinance limit. 136 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 14 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Figure 9: Sound Contour Map Predicted Sound Level Propagation – Current Design 5.0 Recommendations To prevent the sound level from exceeding the 60 dBA noise ordinance at the residential property line, extend and increase the sound barrier fence height to an 8’ sound barrier along the east border (approximately 2’ above the top of the car wash entry door opening). The wall must extend around the northeast corner toward Aldi. Refer to Figure 10 and Figure 11 for barrier extent and predicted sound levels. Refer to Figure 11 for the modeled elevation height for the base of the sound barrier. There are minimum acoustical requirements for the sound barrier wall. It must be constructed from a material with a minimum acoustical rating of STC 22 or a mass no less than 2 pounds per square foot. An example of a suitable material would be overlapping, 1” (nominal thickness) cedar or pine planks, assembled such that the total, actual thickness of the wall is at least 1-½” along the entire length of the wall. They would need to be screwed together rather than nailed so that the natural warping of the planks over time does not cause them to pull apart and create gaps between them. Because this is a “sound barrier wall” rather than a “fence,” there must not be any gaps and it must be constructed tight to the ground. Vacuum Pump House Active Car Vacuuming at all stations Carwash Entry – Doors Open Carwash Exit – Doors Open 6’ Air-tight, solid fence 137 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 15 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com In addition to the sound barrier, the acoustic analysis for this project depends upon the following design elements: a. The central vacuum will be located in a masonry building with sealed steel doors. If a vacuum pump exhaust muffler was used at the Waukesha location then the vacuum pump at this location should also be fit with a muffler. b. The blowers must be set to turn off when the exit doors open. The entrance door is controlled by a separate set of photo-eye sensors placed at the tunnel entrance. Our analysis relies on the exit door being closed while the blowers are operating. We have assumed that the entry doors may be open while the blowers are operating. The sound level in the Aldi parking lot with the exit door closed will result in a sound level of approximately 71 dBA. We understand Tsunami does not want a wall that would block street view. We must note that the sound level at the residential property to the south would exceed the 60 dBA residential limit when all vacuums are simultaneously active. We understand this situation to be a rare occurrence and typical use will not result in levels above the measured ambient (59 dBA SW corner). 138 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 16 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Figure 10: Sound Contour Map – Tsunami Car Wash Exit Doors Closed with 8-ft Property Line Barrier Vacuum Pump House Active Car Vacuuming at all stations Carwash Entry – Doors Open Carwash Exit – Doors Closed Extended 8’ Air-tight, solid fence 139 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 17 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Figure 11: Sound Barrier Fence Location 140 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 18 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com 6.0 Conclusion The proposed carwash design includes several elements that are beneficial in terms of noise transmission to the residential neighborhood. The carwash is oriented so that the loudest part of the building (the exit) is pointed away from residences. Airlift doors will be installed and the exit door will be kept closed while the blowers are operating. The central vacuums will be located within a masonry building with sealed steel doors. Finally, the addition of a solid, 8’ tall, air-tight fence (2’ above the top of the car wash entry door) will serve as a sound barrier along the eastern border on top of the planned retaining wall, allowing the carwash-related sound levels at the residential property lines to meet the Minnesota noise ordinance’s residential threshold of 60 dBA. This concludes our assessment and recommendations. We will be happy to elaborate on anything contained within this report. 141 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 19 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Appendix A: Acoustical Terminology Sound level is measured in units called decibels (abbreviated dB). Decibels are logarithmic rather than linear quantities and thus a doubling of the sound level does not translate to a doubling of decibels. Also, the human ear does not interpret a doubling of sound energy as a doubling of loudness. For these reasons, the following approximate relationships should be kept in mind when reading this report. The logarithmic nature of dB and the human subjective perception of relative sound levels result in the following approximate rules for judging increases in noise. A 3 dB sound level increase (or decrease) typically cannot be heard or is barely perceptible. A 5 dB sound level increase is perceptible and is often considered significant. A sound level which increases by 10 dB will be perceived as twice as loud. These perceived changes in the noise level are mostly independent of the absolute noise level. That is, a 35 dB noise will be perceived as twice as loud as a 25 dB noise, and a 60 dB noise will be perceived as twice as loud as a 50 dB noise. Audible sound occurs over a wide frequency range, from low-pitched sounds at approximately 20 Hertz (Hz) to high-pitched sounds at 20,000 Hz. These frequencies are commonly grouped into octave bands or 1/3 octave bands. Building mechanical systems generally produce noise in the 63 Hz to 1000 Hz octave bands, with the lower frequency noise generated by large fans. Human speech is predominantly contained in the 250 Hz to 2000 Hz octave bands. Humans do not hear equally well at all frequencies. We are especially poor at hearing low frequency sound and are best at hearing sound in the frequency range of human speech. A microphone does not have these same characteristics. Therefore, when sound is being measured to determine how well people will be able to hear it, a "weighting" is applied to the sound level measured using a microphone. The most common weighting is the "A-weighting" and the resulting sound level is expressed in A-weighted decibels (dBA). This weighting reduces the low frequency sound, slightly increases the sound at the dominant frequencies of human speech, and slightly lowers the sound level at high frequencies. The ambient noise level is the existing level of noise in a space or at a specific location in the environment. Direct Sound Level or Direct Noise Level is the result of sound that travels directly from the sound source to the listener’s ears, without reflecting off of any surfaces. Equivalent Sound Level (Leq) is the average sound level in an environment where the sound level changes. However, the Leq is not a simple arithmetic average of the sound level over time, but is a logarithmic average. Leq is the “energy” average noise level over a period of time. Leq can be measured for any time period, but is typically measured for some increment or fraction of an hour such as 15 minutes, 1 hour or 24-hours. Sound Power and Sound Pressure Levels - Sound pressure can be directly measured by a microphone. Outdoor sound pressure levels are influenced by the distance and orientation of the receiver, obstructions and ground absorption between the source and receiver, the temperature, and wind gradients. Sound power is a physical property of the source alone and is not influenced by the external environment. It is an important parameter which is used for rating and comparing sound sources. The sound power is calculated by taking sound pressure or sound intensity measurements according to strict standards and calculation procedures. Conversely, the Sound Pressure Level at a particular location can be calculated 142 Item 2. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 20 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com from the Sound Power Level for a given source and the environmental factors affecting the sound propagation path between the source and receiver. The statistical sound levels, as they are most often called, quantify the sound level exceeded during a period of time. For example, the L90 sound level is the sound level exceeded during 90% of the measurement period. If the measurement period is 60 minutes long, then the L90 is the sound level exceeded during 54 minutes. The L90 is generally considered to be the “background” sound level, the baseline level that is present most of the time. Another commonly used statistical level is the L10. The L10 is the sound level exceeded during only 10% of the measurement period. If the measurement period is 60 minutes long, then L10 is the sound level exceeded during only 6 minutes of the measurement period. L10 can be used to quantify the fluctuating sound levels in an environment. L1 and L5 are also sometimes used for this purpose. 143 Item 2. REPORT | www.transportationcollaborative.com | To: Miranda Seals, Architect The Redmond Company From: Matt Pacyna, PE, Principal Transportation Collaborative & Consultants, LLC Date: September 26, 2024 Subject: Tsunami Express Car Wash Traffic Review INTRODUCTION TC2 completed a traffic review of the proposed Tsunami Express Car Wash Development in the City of Columbia Heights. The subject site, as shown, is generally east of Central Avenue (Highway 65) and north of 50th Avenue. The main objectives of the study are to quantify existing traffic operations within the study area, evaluate potential impacts associated with the proposed development, and recommend improvements, if necessary, to ensure safe and efficient operations for all users. A review of internal site circulation, access, and operations is included as part of this review. The following study assumptions, methodology, and findings are offered for consideration. EXISTING CONDITIONS Existing conditions were reviewed within the study area to quantify current operations to help determine impacts associated with the proposed development. The evaluation of existing conditions included collecting traffic volumes, observing transportation characteristics, and analyzing intersection capacity, which are described in the following sections. Traffic Volumes Vehicular intersection turning movement and pedestrian / bicyclist counts were collected along 50th Avenue at Tyler Street and Polk Place on Tuesday, September 17, 2024. Historical traffic data at the Central Avenue (Highway 65) and 50th Avenue intersection was provided by MnDOT. Subject Site Ce n t r a l A v e ( H w y 6 5 ) Ty l e r S t Po l k P l 50th Ave 49th Ave Lincoln Ter. Pierce Ter. 52nd Ave 51st Ave 50th Ave 49th Ave 144 Item 2. Tsunami Express Car Wash Traffic Review September 26, 2024 Page 2 The counts included a combination of a.m. / p.m. peak period (i.e., 7 to 9 a.m. and 4 to 6 p.m.) and 13-hour (i.e., 6 a.m. to 7 p.m.) data. The a.m. and p.m. peak hours within the study area generally represent 7:30 to 8:30 a.m. and 4:45 to 5:45 p.m.; there is an additional afternoon p.m. peak period that occurs shortly after the nearby Columbia Heights High School lets out for the day around 3 p.m. Average daily traffic (ADT) volumes were provided by MnDOT or estimated based on the data collected. Transportation Characteristics Observations were conducted within the study area to identify various transportation characteristics such as roadway geometry, traffic controls, speed limits, and multimodal facilities. Within the study area, Central Avenue is a 4-lane divided minor arterial roadway with left- and right-lanes; there is a sidewalk along both sides of the roadway and the posted speed limit is 40-mph. 50th Avenue, Tyler Street, and Polk Place are local 2-lane roadways. These roadways do not have multimodal facilities within the study area, except for the north side of 50th Avenue between Central Avenue (Highway 65) and the subject site. The Central Avenue (Highway 65) / 50th Avenue intersection is signalized, while the other study intersections were assumed to operate similar to side-street stop control since the Tyler Street approach is uncontrolled and the Polk Place approach has yield control. Existing geometrics, traffic controls, and volumes within the study area are shown in Figure 2. Intersection Capacity Intersection capacity was evaluated using Synchro / SimTraffic Software (version 11), which uses methods outlined in the Highway Capacity Manual, 6th Edition. The software is used to develop calibrated models that simulate observed traffic operations, account for peaking characteristics, and identify key metrics such as intersection Level of Service (LOS) and queues. These models incorporate collected traffic, pedestrian, and bicyclist volumes, traffic controls, heavy commercial vehicle activity (i.e., buses and trucks), and driver behavior factors. Existing signal timing was obtained from MnDOT. Level of Service (LOS) quantifies how an intersection is operating. Intersections are graded from LOS A to LOS F, which corresponds to the average delay per vehicle values shown. An overall intersection LOS A though LOS D is generally considered acceptable in the study area. LOS A indicates the best traffic operation, while LOS F indicates an intersection where demand exceeds capacity. For side-street stop-controlled intersections, special emphasis is given to providing an estimate for the level of service of the side-street approach. Traffic operations at an unsignalized intersection with side- street stop control can be described in two ways. First, consideration is given to the overall intersection level of service, which takes into account the total number of vehicles entering the intersection and the capability of the intersection to support the volumes. Second, it is important to consider the delay on the minor approach. Since the mainline does not have to stop, most delay is attributed to the side-street approaches. It is typical of intersections with higher mainline traffic volumes to experience high-levels of delay (i.e., poor levels of service) on the side-street approaches, but an acceptable overall intersection level of service during peak hour conditions. Level of Service Average Delay / Vehicles Stop, Yield, and Roundabout Signalized Intersections A < 10 seconds < 10 seconds B 10 to 15 seconds 10 to 20 seconds C 15 to 25 seconds 20 to 35 seconds D 25 to 35 seconds 35 to 55 seconds E 35 to 50 seconds 55 to 80 seconds F > 50 seconds > 80 seconds 145 Item 2. Cr e s t w o o d T er r a c e Dell Road St a b l e P a t h Flying Cloud Drive (CR 61) Geisler Road Laforet Drive J o n a t h a n L a n e Turnbull Road De l l R oa d D e l l R o a d Figure 1Existing Conditions Tsunami Express Car Wash Traffic Review N 35% 75% 65%32.5% AM Peak Hour Volume PM Peak Hour Volume Estimated ADT Volume Traffic Signal Stop Sign Yield Sign Legend 15% Goodrich Ave Le x i n g t o n P k w y Oxford St 36th St 25% 30% 32.5% 47.5% 15% 2.5% 2.5% 17.5% 5% 22.5%70% 40% 60% 37.5% 52.5% 5% 30% 7.5% 2.5% 2.5% 2.5% 10% 25% N 8,000 275 5 0 0 (0)2 (3) XX (XX) X,XXX +85 +215 50% 0 (0)0 (0)9 (2)3 (11)4 (1)0 (0)3 (11)2 (11)7 (4)5 (1)7 (4)5 (1) 7 (4) 5 (1) 7 (4) 5 (1) 9 ( 2 ) 3 ( 1 1) 9 ( 2 ) 3 ( 1 1 ) 7 (4) 5 (1) 7 (4) 5 (1) 0 ( 0 ) 0 ( 0 ) 9 ( 2 ) 3 ( 1 1 ) 9 (2) 3 (11) 0 (0)2 (6)3 (2)7 (4) +430 +130 40 (65) 15 (20) 25 (65) 60 (75) 15 (25) 40 (45) 10 ( 3 5 ) 11 7 5 ( 1 0 2 0 ) 30 ( 1 0 0 ) 25 ( 6 0 ) 76 5 ( 1 4 6 5 ) 15 ( 9 0 ) +685 +340 +50 +50 +75 AM Peak Hour Volume PM Peak Hour Volume Estimated ADT Volume Directional Distribution Legend XX (XX) X,XXX 5 ( 5 ) 65 ( 3 0 ) 10 ( 3 0 ) 70 ( 4 5 ) 45 ( 2 0 ) 5 ( 0 ) 65 0 26 , 8 0 0 2,30050th Ave 105 (45) 5 (5) 0 (0) 130 (75) 5 ( 5 ) 25 ( 3 0 ) 75 (70) 10 (35) 0 (0) 85 (105) 0 ( 0 ) 0 ( 0 ) 49th Ave 51st Ave51st Ave 52nd Ave 49th Ave Lincoln Ter 50th Ave Ty l e r S t Po l k P l 26 , 5 0 0 2,700 70 0 1,300 146 Item 2. Tsunami Express Car Wash Traffic Review September 26, 2024 Page 4 The existing intersection capacity analysis results, summarized in Table 1, indicate that all study intersections operate at an acceptable overall LOS C or better and all approaches operate near the LOS D / LOS E threshold or better during the typical weekday a.m. and p.m. peak hours. Existing 95th percentile queues are generally maintained within the current turn lanes, however, westbound queues along 50th Avenue from Central Avenue (Highway 65) occasionally extend to the existing Aldi / Jimmy John’s driveway during the p.m. peak hour. Peak queues at the 50th Avenue intersections with Tyler Street and Polk Place are approximately one (1) vehicle. Thus, there are no significant existing operational issues from an intersection capacity perspective. Table 1 Existing Intersection Capacity Study Intersection Traffic Control Level of Service (Delay) AM Peak Hour PM Peak Hour 50th Avenue and Central Avenue (Hwy 65) Signal B (14) C (28) 50th Avenue and Tyler Street Yield / SSS A / B (10) A / B (10) 50th Avenue and Polk Place Yield / SSS A / A (9) A / A (9) SSS – Side-Street-Stop PROPOSED DEVELOPMENT The proposed development is generally east of Central Avenue (Highway 65) and north of 50th Avenue. As proposed, the Tsunami Express Car Wash is a single-tunnel automated drive-thru car wash that is approximately 4,500 square feet. The development would replace the existing 12,500 square foot professional office building that is currently vacant. About 20-parking spaces are proposed, as well as the extension of the existing sidewalk along the north side of 50th Avenue to the eastern site driveway. For study purposes, the proposed development was assumed to be fully operational by the year 2027. Access to the site is planned at two locations; the existing office driveway would remain in its general location and provide two-way operations, while a new two-lane entrance-only access is proposed along 50th Avenue across from Tyler Street. The two-lane entrance provides accommodations for eight (8) vehicles to queue at the sales booth before proceeding to the car wash tunnel. 147 Item 2. Tsunami Express Car Wash Traffic Review September 26, 2024 Page 5 TRAFFIC FORECASTS Traffic forecasts were developed for year 2027 build conditions. The traffic forecasts account for general background growth and trip generation from the proposed development. A year 2027 no build condition was not reviewed given the limited area growth between existing and year 2027 conditions. The following information summarizes the traffic forecast development process. Background Growth To account for general background growth in the study area, an annual growth rate of one (1) percent was applied to the existing traffic volumes to develop year 2027 background traffic forecasts. This growth rate is higher than historical ADT volumes in the study area over the past 20-years and represents a conservative approach. This rate accounts for growth outside the study area and is not related to the proposed development. Proposed Development Trip Generation A trip generation estimate for the proposed development was created using a combination of the ITE Trip Generation Manual, 11th Edition, historical data from the project team, and site observations at other similar car washes. The trip generation estimate includes trips for weekday a.m. and p.m. peak hours, as well as a daily basis. A trip generation estimate for the former professional office land use was also developed for comparison purposes. As shown in Table 2, the proposed car wash is estimated to generate approximately 30 a.m. peak hour, 60 p.m. peak hour, and 300 daily trips during its busiest days. When compared to the former office use, the site would generate a similar amount of a.m. peak hour trips, but more p.m. peak hour and daily trips. Note that the trip generation estimate for the proposed car wash represents an active day as opposed to a rainy day, for example. Table 2 Trip Generation Summary Land Use Type (ITE Codes) Size AM Peak Hour PM Peak Hour Daily In Out In Out Proposed Development Automated Car Wash (947-949) 1-Tunnel / 4,500 SF 15 15 30 30 300 Former Land Use Office (710) 12,500 SF 25 3 3 25 190 Overall Site Change (+ / -) -10 +12 +27 +5 +110 Trips from the proposed development were routed to the adjacent roadway network using the following distribution, which is based on existing area travel patterns and engineering judgement. • Central Avenue (Highway 65) North and South: 35% each • Tyler Street: 15% • 50th Avenue West, 50th Avenue East, and Polk Place: 5% each A summary of the site generated trips is shown in Figure 2. The resultant year 2027 build conditions, which accounts for the general background growth and the proposed development is illustrated in Figure 3. 148 Item 2. Cr e s t w o o d T er r a c e Dell Road St a b l e P a t h Flying Cloud Drive (CR 61) Geisler Road Laforet Drive J o n a t h a n L a n e Turnbull Road De l l R oa d D e l l R o a d Figure 2Site Generated Trips Tsunami Express Car Wash Traffic Review N 35% 75% 65%32.5% AM Peak Hour Volume PM Peak Hour Volume Estimated ADT Volume Traffic Signal Stop Sign Yield Sign Legend 15% Goodrich Ave Le x i n g t o n P k w y Oxford St 36th St 25% 30% 32.5% 47.5% 15% 2.5% 2.5% 17.5% 5% 22.5%70% 40% 60% 37.5% 52.5% 5% 30% 7.5% 2.5% 2.5% 2.5% 10% 25% N 8,000 275 5 0 0 (0)2 (3) XX (XX) X,XXX +85 +215 50% 0 (0)0 (0)9 (2)3 (11)4 (1)0 (0)3 (11)2 (11)7 (4)5 (1)7 (4)5 (1) 7 (4) 5 (1) 7 (4) 5 (1) 9 ( 2 ) 3 ( 1 1) 9 ( 2 ) 3 ( 1 1 ) 7 (4) 5 (1) 7 (4) 5 (1) 0 ( 0 ) 0 ( 0 ) 9 ( 2 ) 3 ( 1 1 ) 9 (2) 3 (11) 0 (0)2 (6)3 (2)7 (4) +430 +130 5 (10) 1 (2) 5 (10) 0 (0) 1 (2) 0 (0) 0 ( 0 ) 0 ( 0 ) 5 (1 0 ) 0 ( 0 ) 0 ( 0 ) 5 ( 1 0 ) +685 +340 +50 +50 +75 AM Peak Hour Volume PM Peak Hour Volume Estimated ADT Volume Directional Distribution Legend XX (XX) X,XXX 0 (0) 1 (2) 1 (2) 1 (2) 1 ( 2 ) 0 ( 0 ) +4 5 +1 0 5 +1550th Ave 2 (3) 0 (1) 0 (0) 1 (2) 0 (0) 0 ( 0 ) 1 ( 3 ) 1 ( 1 ) 9 (18) 2 (4) 2 (4) 2 (4) 9 (18) 11 ( 2 2 ) 4 (8 ) 49th Ave 51st Ave51st Ave 52nd Ave 49th Ave Lincoln Ter 50th Ave Ty l e r S t Po l k P l +1 0 5 +225 +1 5 +15 149 Item 2. Cr e s t w o o d T er r a c e Dell Road St a b l e P a t h Flying Cloud Drive (CR 61) Geisler Road Laforet Drive J o n a t h a n L a n e Turnbull Road De l l R oa d D e l l R o a d Figure 3Year 2027 Build Conditions Tsunami Express Car Wash Traffic Review N 35% 75% 65%32.5% AM Peak Hour Volume PM Peak Hour Volume Estimated ADT Volume Traffic Signal Stop Sign Yield Sign Legend 15% Goodrich Ave Le x i n g t o n P k w y Oxford St 36th St 25% 30% 32.5% 47.5% 15% 2.5% 2.5% 17.5% 5% 22.5%70% 40% 60% 37.5% 52.5% 5% 30% 7.5% 2.5% 2.5% 2.5% 10% 25% N 8,000 275 5 0 0 (0)2 (3) XX (XX) X,XXX +85 +215 50% 0 (0)0 (0)9 (2)3 (11)4 (1)0 (0)3 (11)2 (11)7 (4)5 (1)7 (4)5 (1) 7 (4) 5 (1) 7 (4) 5 (1) 9 ( 2 ) 3 ( 1 1) 9 ( 2 ) 3 ( 1 1 ) 7 (4) 5 (1) 7 (4) 5 (1) 0 ( 0 ) 0 ( 0 ) 9 ( 2 ) 3 ( 1 1 ) 9 (2) 3 (11) 0 (0)2 (6)3 (2)7 (4) +430 +130 46 (77) 16 (23) 31 (77) 62 (77) 16 (28) 41 (46) 10 ( 3 6 ) 12 1 1 ( 1 0 5 2 ) 36 (1 1 3 ) 2 6 ( 6 2 ) 78 8 ( 1 5 0 9 ) 20 ( 1 0 3 ) +685 +340 +50 +50 +75 AM Peak Hour Volume PM Peak Hour Volume Estimated ADT Volume Directional Distribution Legend XX (XX) X,XXX 5 ( 5 ) 68 ( 3 2 ) 11 (3 3 ) 73 ( 4 8 ) 47 ( 2 3 ) 5 ( 0 ) 71 5 27 , 7 0 0 2,40050th Ave 2 (3) 108 (47) 5 (5) 1 (2) 134 (77) 5 ( 5 ) 1 ( 3 ) 27 ( 3 2 ) 9 (18) 79 (76) 12 (40) 2 (4) 96 (126) 11 ( 2 2 ) 4 (8 ) 49th Ave 51st Ave51st Ave 52nd Ave 49th Ave Lincoln Ter 50th Ave Ty l e r S t Po l k P l 27 , 4 0 0 3,000 73 5 1,350 150 Item 2. Tsunami Express Car Wash Traffic Review September 26, 2024 Page 8 YEAR 2027 CONDITIONS To understand impacts associated with the proposed development, a future intersection capacity analysis was completed for year 2027 build conditions. Table 3 provides a summary of the year 2027 intersection capacity analysis, as well as a comparison to existing conditions. Results of the future analysis indicate that all study intersections will continue to operate at an acceptable overall LOS C or better and all approaches will continue to operate near the LOS D / LOS E threshold or better during the typical weekday a.m. and p.m. peak hours. Minimal changes in queuing are expected and no impacts to the proposed development driveways are expected. The daily traffic volume changes along Polk Place, 50th Avenue, and Tyler Street are minimal and within a typical daily variation of most roadways. Thus, there are no significant impacts expected because of the proposed development from an intersection capacity perspective. Table 3 Year 2027 Intersection Capacity Summary Study Intersection Traffic Control Level of Service (Delay) AM Peak Hour PM Peak Hour Existing Build Existing Build 50th Avenue and Central Avenue (Hwy 65) Signal B (14) B (15) C (28) C (30) 50th Avenue and West Site Access SSS --- A / B (10) --- A / A (9) 50th Avenue and Tyler Street / East Site Access SSS A / B (10) A / B (11) A / B (10) A / B (11) 50th Avenue and Polk Place SSS A / A (9) A / A (9) A / A (9) A / A (9) SSS – Side-Street-Stop SITE PLAN REVIEW / CONSIDERATIONS The proposed driveway for the car wash tunnel provides for eight (8) vehicles to queue within two-lanes before any impacts to 50th Avenue would occur. This driveway includes a member lane for quicker access. Typical service times once a vehicle enters the car wash is approximately two (2) minutes. Therefore, based on the level of trip generation and expected service rates of the sales booth and car wash tunnel, the provided vehicle stacking distance is adequate and no impacts to 50th Avenue are expected. A review of the proposed site plan does not indicate any major issues. However, the following items are offered for further consideration and / or discussion between the City and / or project team. • Locate signage and landscaping to avoid creating any sight distance issues. • Review truck maneuverability to limit potential internal circulation conflicts. • Add a stop or yield sign along Tyler Street at 50th Avenue to better define the right-of-way for motorists and reduce potential conflicts. • Shift the east driveway to the west to better align with Tyler Street, if possible. 151 Item 2. Tsunami Express Car Wash Traffic Review September 26, 2024 Page 9 CONCLUSIONS Based on the findings of the study, the following conclusions are offered for consideration. 1) All study intersections currently operate at an acceptable overall LOS C or better and all approaches operate near the LOS D / LOS E threshold or better during typical weekday a.m. / p.m. peak hours. 2) The development is a single-tunnel automated drive-thru car wash that is approximately 4,500 square feet and would replace an existing 12,500 square foot professional office building. a. The proposed car wash is estimated to generate approximately 30 a.m. peak hour, 60 p.m. peak hour, and 300 daily trips during its busiest days. 3) Traffic forecasts were developed for year 2027 build conditions, which included a one (1) percent annual background growth and trip generation from the proposed development. 4) Results of the year 2027 build analysis indicates that all study intersections will continue to operate at an acceptable overall LOS C or better and all approaches will continue to operate near the LOS D / LOS E threshold or better during the typical weekday a.m. and p.m. peak hours. a. Minimal changes in queuing and no impacts to the proposed development driveways are expected; the daily traffic volume changes along Polk Place, 50th Avenue, and Tyler Street are minimal and within a typical daily variation of most roadways. b. No significant impacts expected because of the proposed development from an intersection capacity perspective. 5) Based on the level of trip generation and expected service rates of the sales booth and car wash tunnel, the provided vehicle stacking distance is adequate and no impacts to 50th Avenue are expected. 6) The following items are offered for further consideration and / or discussion between the City and / or project team. a. Locate signage and landscaping to avoid creating any sight distance issues. b. Review truck maneuverability to limit potential internal circulation conflicts. c. Add a stop or yield sign along Tyler Street at 50th Avenue to better define the right-of-way for motorists and reduce potential conflicts. d. Shift the east driveway to the west to better align with Tyler Street, if possible. 152 Item 2. NO PARKING RATE CONTROL BASIN 1 CONSTRUCTION LIMITS C=22 2 . 8 0 CB=S 7 4 ° 5 9 ' 1 6 " E R=76 6 . 3 5 Δ=16 ° 4 3 ' 0 1 " 223.5 8 S0 0 ° 1 1 ' 4 5 " E 1 4 5 . 3 0 S89°54'47"W 215.00 N0 0 ° 1 1 ' 4 5 " W 2 0 3 . 3 4 (D E S C . = 2 0 3 . 5 6 ) Iron Fence Iron Fence Chain Link Fence [A] Chain Link Fence Crosses Property line 12" HDPE 1 2 " H D P E 8" Sa n i t a r y 8" Sanitary (Per Rec.) 8" S a n i t a r y ( P e r R e c . ) 10" WM (Per Rec.) 10" W M ( P e r R e c . ) 10 " W M ( P e r R e c . ) 6" W M ( P e r R e c . ) Wa t . S e r v . (A Pu b l i c R / W ) 50TH A V E N U E N E P.O.B. Found 1/2 Inch Open Iron Pipe Found 1/2 Inch Iron Pipe W/ Cap No. 5065 Found 1/2 Inch Iron Pipe W/ Cap No. 5065 R=766.35 90.16 12" PVC 12" PVC GARBAGE TRUCK TURNING MOVEMENT COPYRIGHT CIVIL SITE GROUP INC.c PR O J E C T PR E L I M I N A R Y : NO T F O R CO N S T R U C T I O N 2023 ISSUE/SUBMITTAL SUMMARY DATE DESCRIPTION 8/05/24 CITY SUBMITTAL PROJECT MANAGER DAVE KNAEBLE CONTACT NUMBER 612-615-0060 DRAWN BY DK, WMB REVIEWED BY DK PROJECT NUMBER 24289 TS U N A M I E X P R E S S C A R W A S H 99 9 5 0 T H A V E . N E , C O L U M B I A H E I G H T S , M N 5 5 4 2 1 TS U N A M I E X P R E S S C A R W A S H , L L C . 48 0 0 M E A D O W S R O A D , # 3 0 0 , L A K E O S W E G O , O R E G O N 9 7 3 0 5 Civil Engineering Surveying Landscape Architecture 5000 Glenwood Avenue Golden Valley, MN 55422 civilsitegroup.com 612-615-0060 OW N E R REVISION SUMMARY DATE DESCRIPTION 0 1" = 20'-0" 20'-0"10'-0" N Know what's below. before you dig.Call R C2.1 TURNING MOVEMENT 153 Item 2. CITY OF COLUMBIA HEIGHTS PLANNING COMMISSION NOTICE OF PUBLIC HEARING Notice is hereby given that the Planning Commission of the City of Columbia Heights will conduct a public hearing in the City Council Chambers of City Hall at 3989 Central Avenue NE on Tuesday, October 1, 2024, at 6:00 p.m. The order of business is as follows: A request for a Site Plan Review (under one acre) was made proposing demolition of the existing office building in preparation for a new construction car wash and a Conditional Use Permit for an over-height sound barrier at 999 50th Avenue NE. Section 9.104 (N) of the Zoning Ordinance requires the Planning Commission to hold a public hearing on the Site Plan Review and make findings before approving or denying the application. The Planning Commission will provide a recommendation on the Conditional Use Permit for the over-height sound barrier to the City Council for consideration at the October 14, 2024 Council meeting. Notice is hereby given that all persons having an interest will be given an opportunity to be heard. For questions and a full description of the proposals, please contact Andrew Boucher, City Planner, at (763) 706-3673. 154 Item 2. City of Columbia Heights | Community Development Department 3989 Central Avenue NE, Columbia Heights, MN 55421 ▪ Ph: 763-706-3670 ▪ Fax: 763-706-3671 ▪ www.columbiaheightsmn.gov NOTICE OF PUBLIC HEARING – OCTOBER 1, 2024 2015-3 IH2 BORROWER LP 1717 MAIN ST STE 2000 DALLAS, TX 75201 Date of Hearing: October 1, 2024 Subject: Public Hearing Notice – Site Plan Review proposing demolition of an existing vacant building in preparation for a new construction car wash; Conditional Use Permit for an over-height sound barrier. Subject Property: 999 50th Avenue NE Columbia Heights, MN 55421 Dear Resident/Affected Property Owner: The City of Columbia Heights has received an application for a Site Plan Review proposing demolition of the existing office building at 999 50th Avenue NE in preparation for a new construction car wash and a Conditional Use Permit for an over-height sound barrier. Section 9.104 of the Zoning Ordinance requires the Planning Commission to hold a public hearing to approve the Site Plan Review for the car wash and provide a recommendation to the City Council on the Conditional Use Permit for the over-height sound barrier. You are receiving this notice because the property that you own (Affected Property), and/or reside in, is located within 350 feet of the Subject Property. The Planning Commission of the City of Columbia Heights will hold a Public Hearing on this matter on Tuesday, October 1, 2024 at 6:00 p.m. in the City Council Chambers of Columbia Heights City Hall, located at 3989 Central Avenue NE. A map of the Subject Property is attached. A full copy of the application is on file at City Hall and is available for review upon request. You are welcomed and encouraged to participate in the Public Hearing for this matter by attending the October 1, 2024 Planning Commission meeting. If you cannot attend the meeting, but would like to provide input, you can submit correspondence via email to aboucher@columbiaheightsmn.gov or by mail at: City of Columbia Heights Attn: Community Development 3989 Central Avenue NE Columbia Heights, MN 55421 You can participate in the meeting live and online by using Microsoft Teams at the login link below or call-in: Join Microsoft Teams Meeting Online Meeting ID: 252 58 988 371 Passcode: ugquG3 Dial-in for Microsoft Teams Meeting +1-312-626-6799 155 Item 2. If you have any questions about this proposal, please do not hesitate to contact the City of Columbia Heights Community Development Division at (763) 706-3673. Sincerely, Andrew Boucher Community Development Planner, City of Columbia Heights ** Landowners (Commercial and Residential): If you do not reside on the Affected Property, located 350 feet from the Subject Property, it is your responsibility to share this notice with your tenants. This notice should be posted in a public place on your property or mailed directly to the tenants residing or leasing space on the Affected Property. -SUBJECT PROPERTY LOCATION- (Highlighted in orange) 156 Item 2. Name Address City 2015-3 IH2 BORROWER LP 1717 MAIN ST STE 2000 DALLAS, TX 75201 A AND A PROPERTIES LLP 527 PARK PL VADNAIS HEIGHTS, MN 55127 ALDI INC (MINNESOTA)PO BOX 460049 DEPT 501 HOUSTON, TX 77056 ALEXON DANA A & SHARI 1035 LINCOLN TER NE COLUMBIA HGTS, MN 55421 ALI, FADUMO MOHAMOUD 4920 TYLER ST NE COLUMBIA HEIGHTS, MN 55421 ALVARADO, JAIME R 1100 50TH AVE NE COLUMBIA HEIGHTS, MN 55421 BERG PAULA ELIZABETH 1100 PIERCE TER NE COLUMBIA HEIGHTS, MN 55421 CANTOS MARCO A ROJAS 700 N MORGAN AVE MINNEAPOLIS, MN 55411 COLOMBO TRUSTEE MARK R 1105 50TH AVE NE COLUMBIA HEIGHTS, MN 55421 CORNELIUS, CHRISTOPHER S 7890 QUEENSLAND LN N MAPLE GROVE, MN 55311 DAHL STREET PROPERTIES LP 526 HAWTHORNE WOOD DR EAGAN, MN 55123 HOLKESTAD PAIGE LORELLE 1060 POLK PL COLUMBIA HEIGHTS, MN 55421 JAY'S PROPERTIES LLC 16600 86TH AVE N MAPLE GROVE, MN 55311 KEHRWALD TRUSTEE THOMAS L 1060 50TH AVE NE MINNEAPOLIS, MN 55421 KNUDTSON MARLENE S 1070 POLK PL NE COLUMBIA HGTS, MN 55421 KOPONEN TRUSTEE, ROBERT H 1035 POLK PL NE COLUMBIA HEIGHTS, MN 55421 LEMA, MARIA ELVIA 4924 TYLER ST NE COLUMBIA HEIGHTS, MN 55421 LHAMO, SANGYAL 1020 50TH AVE NE COLUMBIA HGTS, MN 55421 OLSON DEAN M ETAL 1775 15TH AVE NW NEW BRIGHTON, MN 55112 P&L REAL ESTATE 3 LLC 3312 HIGHLAND DR BURNSVILLE, MN 55337 PATEL, ANITA M 1101 PIERCE TER NE COLUMBIA HEIGHTS, MN 55421 PETERSON R M & PODANY S R 1120 PIERCE TER NE COLUMBIA HEIGHTS, MN 55421 PRECISION PROPERTIES LLC 3800 N WASHINGTON AVE MINNEAPOLIS, MN 55412 RIFAI, SAMIHA 608 37TH AVE NE MINNEAPOLIS, MN 55421 ROGERS LINDA R 1057 POLK PL NE COLUMBIA HGTS, MN 55421 SANCHEZ LOPEZ CRISTOBAL 1051 POLK PL NE COLUMBIA HEIGHTS, MN 55421 SANCHEZ QUEVEDO LORENA 4918 TYLER ST NE COLUMBIA HEIGHTS, MN 55421 SIGCHA AYORA SANDRO NESTORIO 1085 50TH AVE NE COLUMBIA HEIGHTS, MN 55421 STOVER, MARY LOUISE 1040 50TH AVE NE COLUMBIA HGTS, MN 55421 STURDEVANT JOSEPH A 6182 HEATHER CIR NE FRIDLEY, MN 55432 THIRD STREET INDUSTRIES LLC 3429 EDWARD ST NE ST ANTHONY, MN 55418 TOBASI PROPERTIES LLC 10869 BENTWATER LN WOODBURY, MN 55129 VANGSGARD, JOEL M 1061 POLK PL NE COLUMBIA HEIGHTS, MN 55421 VUE MIHOKO KUATUKNUE 1085 PIERCE TER NE COLUMBIA HEIGHTS, MN 55421 WHITE CASTLE SYSTEM INC PO BOX 1498 COLUMBUS, OH 43216 WHITNEY, TYLER J 4922 Tyler Street NE COLUMBIA HEIGHTS, MN 55421 , 157 Item 2. 158 Item 2. 159 Item 2. 160 Item 2. 161 Item 2. 162 Item 2. 163 Item 2. 164 Item 2. 165 Item 2. 166 Item 2. 167 Item 2. 168 Item 2. 169 Item 2. 170 Item 2. 171 Item 2. 172 Item 2. 173 Item 2. 174 Item 2. 175 Item 2. 176 Item 2. 177 Item 2. 178 Item 2. 179 Item 2. 180 Item 2. 181 Item 2. 182 Item 2. 183 Item 2. 184 Item 2. 185 Item 2. 186 Item 2. 187 Item 2. DEVELOPMENT STAFF REVIEW FORM PROJECT TITLE: Tsunami Car Wash ADDRESS: 999 50th Avenue NE, Columbia Heights, MN 55421 PROJECT DESCRIPTION: Site Plan Review of 999 50th Avenue NE, proposing demolition of an existing office building in preparation of a new construction car wash. PUBLIC MEETING SCHEDULE: EDA: NA P/Z: September 4, 2024 Work Session: NA City Council: PROJECT MANAGER: Andrew Boucher STAFF REVIEW FORM DUE: August 19, 2024 REVIEWER:__Public Works – Engineering _________________________ RECOMMENDED FOR APPROVAL: ___Yes _x__Yes, with conditions ___No COMMENTS/ CONDITIONS: See attached plan review comments. 188 Item 2. CITY OF COLUMBIA HEIGHTS Public Works Department TO: ANDREW BOUCHER CITY PLANNER FROM: SULMAAN KHAN ASSISTANT CITY ENGINEER DATE: AUGUST 21st, 2024 SUBJECT: 999 50th Ave – Tsunami Car Wash - Site Plan Review I have reviewed the site/civil plan submittal packet dated 8/5/2024 and have the following requirements/comments for final approval by PW/Engineering: General / Plat • The City shall require a pre-construction conference prior to any land alteration activities beginning. • All stormwater best management practices (BMP’s) shall have designated drainage and utility easements recorded with the Plat or as a separate document at Anoka County. Grading • The plan sets erosion control plan and SWPPP, meet the City and MWMO requirements. • Prior to any site disturbance activities, please provide the city with a copy of Site NPDES Construction Permit. • Perimeter and entrance erosion control measures must be installed and inspected by the Engineering department prior to site grading activities beginning. Coordinate erosion control measures with the Engineering department if building construction is initiated prior to general site grading. • All slopes greater than 4:1 shall be provided erosion control blanket. • Catch basin inlet protection, such as Wimco’s or equivalent shall be provided on catch basins until restoration is completed. The low point CB’s / structures at the BMP’s shall also be protected. • Tree protection must be fully assembled and approved by the City Forester prior to the beginning of demolition activities for all trees that will not be removed during the project. Tree protection must follow standards set forth in the tree protection detail in the landscaping plan, any changes must be approved in advance by the City Forester. ROW / Utilities / Paving • The City of Columbia Heights does not allow for sanitary sewer services to be placed directly into a manhole. The sanitary sewer service must be moved to come in off the main at least 3’ outside of the manhole. • Vehicle stacking needs to show dimensions accommodating 4 spaces per bay at entrance and 1 space per bay at exit at a minimum, pavement width of 12 feet, a length of 20 feet per vehicle, and exclusive of any other required parking spaces or drive aisles. 189 Item 2. • To better understand traffic issues resulting from the new car wash site, a queue length analysis should be done to project how many vehicles are expected to queue at the entrance during peak times and whether this could cause backups into the street. • The water service must be rerouted around the stormwater basin to maintain 7’ of cover. • Where utilities are crossing proper separation must be maintained. If proper cover is not maintained insulation must be installed between the utilities to prevent freezing from occurring. The insulation must go at least 2’ beyond the crossing. • The road surface must be restored in kind or improved condition if digging in the street must occur for utility installation. • All utilities and storm water features serving the Development shall be privately owned and maintained. All utilities shall meet the City of Columbia Heights specifications for materials and installation. • Site/Civil work shall be inspected by the City Engineering Department (connection to existing utility system). 24-hour advance notice of an inspection is required. • The City of Columbia Heights does not allow PVC as a material type in the ROW – water main must be DIP. • All stormwater best management practices (BMP’s) shall have designated drainage and utility easements recorded with the Plat or as a separate document at Anoka County. • Utility disconnects must be made at the main and inspected by the utility department. • Location of tree installations (landscape plan) and utility locations should be coordinated to maintain 10’ separation from all utilities. • Provide a set of as-built drawings meeting City requirements at the completion of site/civil construction in both hardcopy and electronic format. Please provide a set of Revised Plans to the Engineering department for final approval. If you have any questions or need further information, please contact me at (763) 706-3705. C: Lauren Letsche, Storm Water Specialist Liam Genter, City Forester 190 Item 2. PLANNING COMMISSION MEETING AGENDA SECTION PUBLIC HEARING MEETING DATE OCTOBER 1, 2024 ITEM: Conditional Use Permit for Over-Height Sound Barrier (Fence) at 999 50th Avenue NE DEPARTMENT: Community Development BY/DATE: Andrew Boucher, City Planner; 9/25/24 CASE NUMBER: 2024-0905 APPLICANT: Civil Site Group on behalf of Tsunami Express Car Wash DEVELOPMENT: Conditional Use Permit for an Over-Height sound barrier (fence) at (999 50th Avenue NE). LOCATION: 999 50th Avenue NE REQUEST: Conditional Use Permit PREPARED BY: Andrew Boucher, City Planner INTRODUCTION The City of Columbia Heights has received an application for a Conditional Use Permit for the property located at 999 50th Avenue NE. The project site currently contains a vacant office building which has a Site Plan Review proposing to demolish the existing building and construct a new car wash. The applicant was required to provide a Noise Impact Study which recommended installing an eight (8) foot tall sound barrier fence to mitigate any noise from the car wash that would affect the adjacent residential properties. The proposed fencing on the northern and eastern property lines will be located on top of a planned retaining wall and composed of a material with a minimum acoustical rating of STC 22 or a mass no less than 2 pounds per square foot, such as overlapping, 1” (nominal thickness) cedar or pine planks. The fence must be constructed in such a way that the total, actual thickness of the wall is at least 1-1/2” along the entire length of the wall and screwed together rather than nailed so that the natural warping of the planks over time does not cause them to pull apart and create gaps between them. Because this is a “sound barrier wall” rather than a “fence”, there must not be any gaps and it must be constructed tight to the ground. The fence will be oriented so that it will be 2’ above the top of the car wash entry door. No fencing is proposed along the site’s front property line. ZONING ORDINANCE The subject property is located in the General Business Zoning District. The surrounding adjacent properties to the immediate north, west, and south are all zoned for Commercial use through the General Business District. The property also abuts several residential neighborhoods to the north, east, and south containing multi-family, duplexes, and single-family residential zoning adjacent to Central Avenue. Per City Code §9.106(E)(3)(a), fences exceeding seven feet in height shall be deemed structures and shall require a Conditional Use Permit. The Zoning Ordinance requires the Planning Commission to hold a public he aring on 191 Item 3. Page 2 the applications for a Conditional Use Permit submit its recommendation to the City Council for final determination. COMPREHENSIVE PLAN The Comprehensive Plan guides this area for Commercial Use, which is consistent with its current zoning as General Business. The proposed sound barrier wall is compatible with the commercial use guided for this site by the Comprehensive Plan. FINDINGS OF FACT Section 9.104 (H) of the Zoning Code outlines nine conditions that must be met in order for the City to grant a Conditional Use Permit. They are as follows: (a) The use is one of the conditional uses listed for the zoning district in which the property is located, or is a substantially similar use as determined by the Zoning Administrator. City Code §9.106(E)(3) stipulates that commercial fences that exceed seven feet in height shall require a Conditional Use Permit. This application is consistent with the requirements of the Code. (b) The use is in harmony with the general purpose and intent of the comprehensive plan. The Comprehensive Plan guides this property for commercial use. Installing a sound barrier wall intends to separate the commercial use from the adjacent residential properties and is in harmony with the purpose and intent of the Comprehensive Plan. (c) The use will not impose hazards or disturbing influences on neighboring properties. The proposed 8-foot height sound barrier wall should not cause hazards or disturbing influences on neighboring properties. (d) The use will not substantially diminish the use of property in the immediate vicinity. The proposed project should not diminish the use of the property in the immediate vicinity. (e) The use will be designed, constructed, operated and maintained in a manner that is compatible with the appearance of the existing or intended character of the surrounding area. The proposed sound barrier detail contains high-quality wood material that is design to be air-tight and have no gaps, which will contribute to preserving the current appearance and character of the neighborhood. (f) The use and property upon which the use is located are adequately served by essential public facilities and services. This is correct. (g) Adequate measures have been or will be taken to minimize traffic congestion on the public streets and to provide for appropriate on-site circulation of traffic. This is correct. The fencing should not affect traffic congestion on public streets or on-site traffic circulation. (h) The use will not cause a negative cumulative effect, when considered in conjunct ion with the cumulative effect of other uses in the immediate vicinity. This is correct. The fencing should not cause a negative cumulative effect. (i) The use complies with all other applicable regulations for the district in which it is located. 192 Item 3. Page 3 This is correct. The fence will be constructed of approved fencing materials per the Zoning Ordinance and State Building Code. RECOMMENDATION Staff recommends that the Planning Commission recommend approval of the proposed Conditional Use Permit for the property located at 999 50th Avenue NE, subject to certain conditions. RECOMMENDED MOTION(S): MOTION: Move to close the public hearing and waive the reading of Draft Resolution No. 2024-068, there being ample copies available to the public. MOTION: Move to recommend City Council approve the Conditional Use Permit as presented, subject to the following conditions of approval: 1. The site plan included in this submittal shall become part of this approval. 2. The applicant shall submit a building permit application for review and approval prior to construction. 3. Fences greater than seven feet in height shall be of an engineered design and capable of withstanding the applicable wind loads in the Minnesota State Building Code. 4. The sound barrier wall/fence shall be constructed in the manner specified in the Noise Impact Study recommendations dated August 23, 2024 including construction requirements that the barrier meet the minimum acoustical rating of STC 22 or a mass no less than 2 pounds per square foot, the panels screwed together instead of nailed, and that there is an overlapping, 1” (nominal thickness) assembled so that the total actual thickness of the wall is at least 1-1/2” along the entire length of the wall. 5. The applicant shall be responsible for conducting routine inspections to ensure that the sound barrier wall/fence is maintained and upkept. 6. Post-construction sound testing is required to demonstrate compliance with the recommendations made in the Noise Impact Study. 7. All other applicable local, state, and federal requirements shall be met at all times. ATTACHMENTS: Draft Resolution Applications Site Plan Fence Specifications Noise Impact Study Notice of Public Hearing to Newspaper Notice of Public Hearing to Neighborhood Mailing List 193 Item 3. RESOLUTION NO. 2024-068 A resolution of the Planning Commission for the City of Columbia Heights, Minnesota, recommending approval of a Conditional Use Permit for the property located at 999 50th Avenue NE (PID: 25-30-24-23-0002) in the City of Columbia Heights, MN; Whereas, a proposal (Planning Case # 2024-0905) has been submitted by Civil Site Group on behalf of Tsunami Express Car Wash as the property owner to the Planning Commission requesting approval of a Conditional Use Permit at the following location: ADDRESS: 999 50th Avenue NE (PID: 25-30-24-23-0002) EXISTING LEGAL DESCRIPTION: That part of Lots 8 and 9, Auditors Subdivision No. 153 LYG, Anoka County, Minnesota, lying Westerly of a line described as follows: THAT PART OF LOTS 8 & 9 AUDITORS SUBDIVISION NO 153 LYG ELY & SLY OF ALDI ADDITION, WLY OF MATHAIRE ADDITION & NELY OF 50TH AVE NE THE APPLICANT SEEKS THE FOLLOWING: 1. Conditional Use Permit to allow an eight (8’) foot tall over-height sound barrier along the eastern/northern property line of the lot at 999 50 th Avenue NE in accordance with City Code Section 9.106 (E)(3)(a). Whereas, the Planning Commission held a public hearing as required by the City Zoning Code on October 1, 2024; Whereas, the Planning Commission has considered the advice and recommendations of the Planning Commission regarding the effect of the proposed Conditional Use Permit upon the health, safety, and welfare of the community and its Comprehensive Plan, as well as any concern related to traffic, property values, light, air, danger of fire, and risk to public safety, in the surrounding area; Now, therefore, in accordance with the foregoing, and all ordinances and regulations of the City of Columbia Heights, the City of Columbia Heights Planning Commission makes the following: FINDINGS OF FACT 1. The use is one of the conditional uses listed for the zoning district in which the property is located, or is a substantially similar use as determined by the Zoning Administrator. 2. The use is in harmony with the general purpose and intent of the comprehensive plan. 194 Item 3. 3. The use will not impose hazards or disturbing influences on neighboring properties. 4. The use will not substantially diminish the use of property in the immediate vicinity. 5. The use will be designed, constructed, operated and maintained in a manner that is compatible with the appearance of the existing or intended character of the surrounding area. 6. The use and property upon which the use is located are adequately served by essential public facilities and services. 7. Adequate measures have been or will be taken to minimize traffic congestion on the public streets and to provide for appropriate on-site circulation of traffic. 8. The use will not cause a negative cumulative effect, when considered in conjunction with the cumulative effect of other uses in the immediate vicinity. 9. The use complies with all other applicable regulations for the district in which it is located. CONDITIONS 1. The site plan included in this submittal shall become part of this approval. 2. The applicant shall submit a building permit application for review and approval prior to construction. 3. Fences greater than seven feet in height shall be of an engineered design and capable of withstanding the applicable wind loads in the Minnesota State Building Code. 4. The sound barrier wall/fence shall be constructed in the manner specified in the Noise Impact Study recommendations dated August 23, 2024 including construction requirements that the barrier meet the minimum acoustical rating of STC 22 or a mass no less than 2 pounds per square foot, the panels screwed together instead of nailed, and that there is an overlapping, 1” (nominal thickness) assembled so that the total actual thickness of the wall is at least 1-1/2” along the entire length of the wall. 5. The applicant shall be responsible for conducting routine inspections to ensure that the sound barrier wall/fence is maintained and upkept. 6. Post-construction sound testing is required to demonstrate compliance with the recommendations made in the Noise Impact Study. 7. All other applicable local, state, and federal requirements shall be met at all times . 195 Item 3. Passed this 1st day of October, 2024 Offered by: Seconded by: Roll Call: Clara Wolfe, Chair Attest: Andrew Boucher, City Planner 196 Item 3. Page 1 of 3 Community Development Department 590 40th Ave. NE, Columbia Heights, MN 55421 NON-RESIDENTIAL - CONDITIONAL USE PERMIT APPLICATION ORDINANCE NO. 9.104 (H) This application is subject to review and acceptance by the City. Applications will be processed only if all required items are submitted. PROPERTY INFORMATION Project Address/Location: ________________________________________________________________________ Legal Description of property: ____________________________________________________________________ _____________________________________________________________________________________________ Present use of property: _________________________________________________________________________ Proposed conditional use of property: ______________________________________________________________ PROPERTY OWNER (As it appears on property title): Company/Individual (please print): __________________________________________________________________ Contact Person (please print): ______________________________________________________________________ Mailing Address: ________________________________________________________________________________ City: ______________________________ State: ____________ Zip: ___________________________________ Daytime Phone: __________________________ Cell Phone: ____________________________________________ E-mail Address: _________________________________________________________________________________ Signature/Date: _________________________________________________________________________________ APPLICANT: Company/Individual (please print): __________________________________________________________________ Contact Person (please print): ______________________________________________________________________ Mailing Address: ________________________________________________________________________________ City: ______________________________ State: ____________ Zip: ___________________________________ Daytime Phone: __________________________ Cell Phone: ____________________________________________ E-mail Address: _________________________________________________________________________________ Signature/Date: _________________________________________________________________________________ 09/05/2024 DAVID KNAEBLE Digitally signed by DAVID KNAEBLE DN: C=US, E=DKNAEBLE@CIVILSITEGROUP.COM, CN=DAVID KNAEBLE Date: 2024.09.06 12:19:38-05'00' 197 Item 3. Page 2 of 3 REASON FOR REQUEST (please attach a written narrative describing the intended use of the property and justification for your request. Describe any modifications and/or limitations of the use that have been made to insure its compatibility with surrounding uses and with the purpose and intent of the Zoning Ordinance and the Comprehensive Plan.) FOR OFFICE USE ONLY CASE NO: _______________________ APPLICATION REC’D BY: ________________________ DATE APPLICATION REC’D: _______________ $500 APPLICATION FEE REC’D: _____________________ RECEIPT NUMBER: ____________________ Approved by Planning & Zoning Commission on ____________ Approved by City Council on _____________________ Rev Revised June 2017 198 Item 3. Page 3 of 3 199 Item 3. Figure 11: Sound Barrier Fence Location 200 Item 3. 201 Item 3. Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Noise Impact Analysis for Proposed Tsunami Car Wash, Columbia Heights , Minnesota Prepared By: Nathan Sevener, Principal Consultant INCE Bd. Cert. Aimee Lalime, Senior Consultant MSME, INCE Anna Catton, Consultant MSAE 23 August 2024 202 Item 3. THIS PAGE INTENTIONALLY LEFT BLANK 203 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 3 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Executive Summary The proposed Tsunami Car in Columbia Heights, Minnesota is planned to operate from 7:00 am and 8:00 pm daily. The Minnesota noise ordinance defines the daytime (7:00 am to 10:00 pm) noise limit for Residential zones at 60 dBA at the property lines. Our calculations indicate that the carwash-related noise levels with the planned layout will not exceed the residential limits with the addition of an 8’ sound barrier along the east and north property lines on top of the planned retaining wall (with the combined height extending 2’ above the top of the car wash entry doors). 204 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 4 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com TABLE OF CONTENTS EXECUTIVE SUMMARY ....................................................................................................................... 3 LIST OF ABBREVIATED TERMS ............................................................................................................. 5 1.0 INTRODUCTION ............................................................................................................................ 6 2.0 MEASUREMENTS .......................................................................................................................... 7 2.1 INSTRUMENTATION .................................................................................................................................. 7 2.2 AMBIENT MEASUREMENTS ....................................................................................................................... 7 2.3 EQUIPMENT MEASUREMENTS ................................................................................................................. 10 3.0 ORDINANCE AND CRITERIA ......................................................................................................... 12 4.0 COMPUTER MODEL CALCULATION OF SOUND LEVELS AROUND CARWASH .................................. 13 5.0 RECOMMENDATIONS ................................................................................................................. 14 6.0 CONCLUSION .............................................................................................................................. 18 APPENDIX A: ACOUSTICAL TERMINOLOGY ....................................................................................... 19 LIST OF FIGURES Figure 1: Proposed Tsunami Express Car Wash, Columbia Heights, Minnesota .......................... 6 Figure 2: Ambient Sound Levels (dBA) Measured at Proposed Car Wash Site ............................ 8 Figure 3: Photos of Sound Level Meter at Two of the Measurement Locations On-Site .............. 9 Figure 4: Waukesha Tsunami Car Wash Exit ............................................................................... 10 Figure 5: Waukesha Tsunami Car Wash Layout .......................................................................... 11 Figure 6: Vacuum Pump House .................................................................................................... 11 Figure 7: Minnesota Noise Ordinance .......................................................................................... 12 Figure 8: 3D Model View ............................................................................................................. 13 Figure 9: Sound Contour Map Predicted Sound Level Propagation – Current Design ................ 14 Figure 10: Sound Contour Map – Tsunami Car Wash Exit Doors Closed with 8-ft Property Line Barrier ................................................................................................................................... 16 Figure 11: Sound Barrier Fence Location ..................................................................................... 17 LIST OF TABLES Table 1: Sound Measurement Equipment ....................................................................................... 7 Table 2: Sound levels Measured at a Waukesha Location (dB) ................................................... 10 Table 3: Measured Vacuum Related Sound Levels at Waukesha Location ................................. 11 205 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 5 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com List of Abbreviated Terms dB Decibel dBA A-weighted Decibels Leq Equivalent Sound Level 206 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 6 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com 1.0 Introduction Soundscape Engineering has completed a sound study for a proposed Tsunami Express Carwash to be located at 999 50th Avenue NE, Columbia Heights, Minnesota. The proposed building will be a 5,000 SF car wash with 18 vacuums, a sales booth, and vacuum pump house. It is our understanding that the car wash will be open 7 days per week from 7:00 am to 8:00 pm. We have collected sound data from past projects with Tsunami, specifically the Tsunami Car Wash in Waukesha, Wisconsin. The loudest noise sources are the blowers inside the car wash and the vacuums/pump house in the parking lot area. We assume that this location will use the same blowers as the Waukesha location. The design is complete and you provided us with a copy of the city submitted design dated 08-05-2024. The Columbia Heights Tsunami Car Wash is bordered by an Aldi Grocery Store and single-family residences. The project plans to lower the grade of the building site. A new retaining wall will be installed on the east side of the site with a 6-foot fence on top of the wall. According to the Waukesha car wash operation manager, a busy hour by industry standards would be 100+ cars per hour. Figure 1: Proposed Tsunami Express Car Wash, Columbia Heights, Minnesota For your reference, there is a brief glossary of pertinent acoustics terminology in Appendix A. 207 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 7 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com 2.0 Measurements The following describes the ambient measurements at the proposed Columbia Heights location and the existing equipment measurements at the Tsunami Car Wash in Waukesha, Wisconsin. 2.1 Instrumentation An NTi Audio model XL2-TA acoustic analyzer with model MC230 microphone and model MA220 preamp was used for all measurements reported here. This system is Class 1 Type Approved, meeting the requirements of IEC 61672 and ANSI S1.4. Table 1: Sound Measurement Equipment Instrument - Location Make Model No. Serial No. Cal Date Sound Level Meter (SLM) - Position 1 NTi XL2-TA A2A-11159-E0 8/10/2023 SLM Microphone NTi MC230 9538 8/10/2023 SLM Preamp NTi MA220 (M2230) 2923 8/10/2023 Sound Level Calibrator Larsen Davis CAL200 10152 03/23/2023 2.2 Ambient Measurements Soundscape visited the proposed Tsunami Car Wash in Columbia Heights, Minnesota on Sunday, August 11th, 2024. A series of 15-minute spot measurements were taken around the proposed Columbia Heights property. Measurements were taken between 4:00 – 5:30 pm. The overall levels at each measurement location are shown in Figure 2. Photos of the onsite measurements are shown in Figure 3. 208 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 8 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Figure 2: Ambient Sound Levels (dBA) Measured at Proposed Car Wash Site 209 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 9 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Figure 3: Photos of Sound Level Meter at Two of the Measurement Locations On-Site 210 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 10 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com 2.3 Equipment Measurements To determine the equipment sound levels, we measured the sound level produced by equipment at the existing Tsunami Car Wash located at 300 W. Sunset Drive in Waukesha, Wisconsin. We understand that the Columbia Heights location will install the same blower system as the Waukesha location. The measured octave band sound levels at the car wash entry and exit are shown in Table 2. Table 2: Sound levels Measured at a Waukesha Tsunami Carwash (dB) Sound Pressure Levels (dB at a 20-foot distance1) per Octave Band Center Frequency, Hz Overall Level (dBA) 31.5 63 125 250 500 1000 2000 4000 8000 Wash Exit, Blowers On, Doors Open 78 80 80 81 89 88 86 82 74 93 Wash Exit, Blowers On, Doors Closed 74 79 77 77 79 73 69 63 53 79 Wash Entrance, Doors Open 73 74 72 69 71 72 71 66 56 76 1) These measurements were made directly in front of the entrance or exit, at a distance of 20 feet. Figure 4: Waukesha Tsunami Car Wash Exit 211 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 11 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Figure 5: Waukesha Tsunami Car Wash Layout Measurements were also taken outside the vacuum pump house and near a car being vacuumed (Figure 6). The pump house is constructed of masonry block and has steel doors with perimeter seals. This construction is advantageous for noise control. We are not aware if the existing vacuum system has a muffler. These measured levels are presented in Table 3. Table 3: Measured Vacuum Related Sound Levels at Waukesha Location Sound Pressure Levels (dB) per Octave Band Center Frequency, Hz Overall level (dBA) 31.5 63 125 250 500 1000 2000 4000 8000 Vacuum Pump House at 3’ Distance 71 75 67 64 60 59 58 55 51 65 Car Vacuuming at Approx. 6’ Distance 70 72 70 66 64 64 68 69 62 74 Figure 6: Vacuum Pump House 212 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 12 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com 3.0 Ordinance and Criteria The project is required to meet the State of Minnesota's Administrative Rules Section 7030.0040 Noise Standards, which we understand to be the City of Columbia Heights’ ordinance: Figure 7: Minnesota Noise Ordinance Residential properties fit into “Noise Area Classification 1” and commercial properties fall into the “Noise Area Classification 2”. The L50 represents the level exceeded 50% of the time, or the median sound level. During peak business hours, the car wash is expected to be in nearly continuous operation, so the L50 is equivalent to the average sound level, or Leq. This means that the car wash measurement levels in Table 2 were used as source levels for Columbia Heights without applying a reduction for related to duration of use. Similarly, the L10 refers to the sound level during the loudest 10% of the time. Since the levels are nearly continuous, the L10 and the L50 are expected to be almost equal. Therefore, the L50 criterion is the most stringent for this project, and will be referred to in this assessment. 213 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 13 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com 4.0 Computer Model Calculation of Sound Levels Around Carwash We modeled the Columbia Heights site and surrounding area in the commercial environmental noise modeling software, SoundPLAN. Site topography, existing and proposed buildings, sound sources, and receiver locations were inputted as elements into the computer model. A 3D view of the propagation model is shown in Figure 8. The red-shaded areas represent sound area sources. We have modeled the worst-case scenario with all vacuum stations in use and the carwash entry door open. We understand that the car wash doors are planned to be open when cars are in the tunnel, which could be nearly continuous during the busiest hours of the week. Vacuum stations are indicated by the red asterisks below. Sources included in the model are based on measurements made at the Waukesha Tsunami and are as follows: • Carwash Entry Door Open • Carwash Exit Door Open and Closed – Blowers On • Vacuum pump house with Sealed metal doors • Car Vacuum Stations (red asterisks) Figure 8: 3D Model View Figure 9 presents the predicted radiated sound levels due to the Tsunami Car Wash. The darkest green shaded area represents areas where the sound levels are below the residential 60 dBA L50 noise ordinance limit. 214 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 14 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Figure 9: Sound Contour Map Predicted Sound Level Propagation – Current Design 5.0 Recommendations To prevent the sound level from exceeding the 60 dBA noise ordinance at the residential property line, extend and increase the sound barrier fence height to an 8’ sound barrier along the east border (approximately 2’ above the top of the car wash entry door opening). The wall must extend around the northeast corner toward Aldi. Refer to Figure 10 and Figure 11 for barrier extent and predicted sound levels. Refer to Figure 11 for the modeled elevation height for the base of the sound barrier. There are minimum acoustical requirements for the sound barrier wall. It must be constructed from a material with a minimum acoustical rating of STC 22 or a mass no less than 2 pounds per square foot. An example of a suitable material would be overlapping, 1” (nominal thickness) cedar or pine planks, assembled such that the total, actual thickness of the wall is at least 1-½” along the entire length of the wall. They would need to be screwed together rather than nailed so that the natural warping of the planks over time does not cause them to pull apart and create gaps between them. Because this is a “sound barrier wall” rather than a “fence,” there must not be any gaps and it must be constructed tight to the ground. Vacuum Pump House Active Car Vacuuming at all stations Carwash Entry – Doors Open Carwash Exit – Doors Open 6’ Air-tight, solid fence 215 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 15 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com In addition to the sound barrier, the acoustic analysis for this project depends upon the following design elements: a. The central vacuum will be located in a masonry building with sealed steel doors. If a vacuum pump exhaust muffler was used at the Waukesha location then the vacuum pump at this location should also be fit with a muffler. b. The blowers must be set to turn off when the exit doors open. The entrance door is controlled by a separate set of photo-eye sensors placed at the tunnel entrance. Our analysis relies on the exit door being closed while the blowers are operating. We have assumed that the entry doors may be open while the blowers are operating. The sound level in the Aldi parking lot with the exit door closed will result in a sound level of approximately 71 dBA. We understand Tsunami does not want a wall that would block street view. We must note that the sound level at the residential property to the south would exceed the 60 dBA residential limit when all vacuums are simultaneously active. We understand this situation to be a rare occurrence and typical use will not result in levels above the measured ambient (59 dBA SW corner). 216 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 16 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Figure 10: Sound Contour Map – Tsunami Car Wash Exit Doors Closed with 8-ft Property Line Barrier Vacuum Pump House Active Car Vacuuming at all stations Carwash Entry – Doors Open Carwash Exit – Doors Closed Extended 8’ Air-tight, solid fence 217 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 17 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Figure 11: Sound Barrier Fence Location 218 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 18 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com 6.0 Conclusion The proposed carwash design includes several elements that are beneficial in terms of noise transmission to the residential neighborhood. The carwash is oriented so that the loudest part of the building (the exit) is pointed away from residences. Airlift doors will be installed and the exit door will be kept closed while the blowers are operating. The central vacuums will be located within a masonry building with sealed steel doors. Finally, the addition of a solid, 8’ tall, air-tight fence (2’ above the top of the car wash entry door) will serve as a sound barrier along the eastern border on top of the planned retaining wall, allowing the carwash-related sound levels at the residential property lines to meet the Minnesota noise ordinance’s residential threshold of 60 dBA. This concludes our assessment and recommendations. We will be happy to elaborate on anything contained within this report. 219 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 19 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com Appendix A: Acoustical Terminology Sound level is measured in units called decibels (abbreviated dB). Decibels are logarithmic rather than linear quantities and thus a doubling of the sound level does not translate to a doubling of decibels. Also, the human ear does not interpret a doubling of sound energy as a doubling of loudness. For these reasons, the following approximate relationships should be kept in mind when reading this report. The logarithmic nature of dB and the human subjective perception of relative sound levels result in the following approximate rules for judging increases in noise. A 3 dB sound level increase (or decrease) typically cannot be heard or is barely perceptible. A 5 dB sound level increase is perceptible and is often considered significant. A sound level which increases by 10 dB will be perceived as twice as loud. These perceived changes in the noise level are mostly independent of the absolute noise level. That is, a 35 dB noise will be perceived as twice as loud as a 25 dB noise, and a 60 dB noise will be perceived as twice as loud as a 50 dB noise. Audible sound occurs over a wide frequency range, from low-pitched sounds at approximately 20 Hertz (Hz) to high-pitched sounds at 20,000 Hz. These frequencies are commonly grouped into octave bands or 1/3 octave bands. Building mechanical systems generally produce noise in the 63 Hz to 1000 Hz octave bands, with the lower frequency noise generated by large fans. Human speech is predominantly contained in the 250 Hz to 2000 Hz octave bands. Humans do not hear equally well at all frequencies. We are especially poor at hearing low frequency sound and are best at hearing sound in the frequency range of human speech. A microphone does not have these same characteristics. Therefore, when sound is being measured to determine how well people will be able to hear it, a "weighting" is applied to the sound level measured using a microphone. The most common weighting is the "A-weighting" and the resulting sound level is expressed in A-weighted decibels (dBA). This weighting reduces the low frequency sound, slightly increases the sound at the dominant frequencies of human speech, and slightly lowers the sound level at high frequencies. The ambient noise level is the existing level of noise in a space or at a specific location in the environment. Direct Sound Level or Direct Noise Level is the result of sound that travels directly from the sound source to the listener’s ears, without reflecting off of any surfaces. Equivalent Sound Level (Leq) is the average sound level in an environment where the sound level changes. However, the Leq is not a simple arithmetic average of the sound level over time, but is a logarithmic average. Leq is the “energy” average noise level over a period of time. Leq can be measured for any time period, but is typically measured for some increment or fraction of an hour such as 15 minutes, 1 hour or 24-hours. Sound Power and Sound Pressure Levels - Sound pressure can be directly measured by a microphone. Outdoor sound pressure levels are influenced by the distance and orientation of the receiver, obstructions and ground absorption between the source and receiver, the temperature, and wind gradients. Sound power is a physical property of the source alone and is not influenced by the external environment. It is an important parameter which is used for rating and comparing sound sources. The sound power is calculated by taking sound pressure or sound intensity measurements according to strict standards and calculation procedures. Conversely, the Sound Pressure Level at a particular location can be calculated 220 Item 3. Tsunami Car Wash Columbia Heights Noise Impact Analysis 23 August 2024 Page 20 of 20 Soundscape Engineering 3711 N. Ravenswood Ave., Ste. 104 • Chicago, IL 60613 • (312) 436-0032 729 W. Ann Arbor Trl., Ste. 150 • Plymouth, MI 48170 • (734) 418-8663 www.SoundscapeEngineering.com from the Sound Power Level for a given source and the environmental factors affecting the sound propagation path between the source and receiver. The statistical sound levels, as they are most often called, quantify the sound level exceeded during a period of time. For example, the L90 sound level is the sound level exceeded during 90% of the measurement period. If the measurement period is 60 minutes long, then the L90 is the sound level exceeded during 54 minutes. The L90 is generally considered to be the “background” sound level, the baseline level that is present most of the time. Another commonly used statistical level is the L10. The L10 is the sound level exceeded during only 10% of the measurement period. If the measurement period is 60 minutes long, then L10 is the sound level exceeded during only 6 minutes of the measurement period. L10 can be used to quantify the fluctuating sound levels in an environment. L1 and L5 are also sometimes used for this purpose. 221 Item 3. CITY OF COLUMBIA HEIGHTS PLANNING COMMISSION NOTICE OF PUBLIC HEARING Notice is hereby given that the Planning Commission of the City of Columbia Heights will conduct a public hearing in the City Council Chambers of City Hall at 3989 Central Avenue NE on Tuesday, October 1, 2024, at 6:00 p.m. The order of business is as follows: A request for a Site Plan Review (under one acre) was made proposing demolition of the existing office building in preparation for a new construction car wash and a Conditional Use Permit for an over-height sound barrier at 999 50th Avenue NE. Section 9.104 (N) of the Zoning Ordinance requires the Planning Commission to hold a public hearing on the Site Plan Review and make findings before approving or denying the application. The Planning Commission will provide a recommendation on the Conditional Use Permit for the over-height sound barrier to the City Council for consideration at the October 14, 2024 Council meeting. Notice is hereby given that all persons having an interest will be given an opportunity to be heard. For questions and a full description of the proposals, please contact Andrew Boucher, City Planner, at (763) 706-3673. 222 Item 3. City of Columbia Heights | Community Development Department 3989 Central Avenue NE, Columbia Heights, MN 55421 ▪ Ph: 763-706-3670 ▪ Fax: 763-706-3671 ▪ www.columbiaheightsmn.gov NOTICE OF PUBLIC HEARING – OCTOBER 1, 2024 2015-3 IH2 BORROWER LP 1717 MAIN ST STE 2000 DALLAS, TX 75201 Date of Hearing: October 1, 2024 Subject: Public Hearing Notice – Site Plan Review proposing demolition of an existing vacant building in preparation for a new construction car wash; Conditional Use Permit for an over-height sound barrier. Subject Property: 999 50th Avenue NE Columbia Heights, MN 55421 Dear Resident/Affected Property Owner: The City of Columbia Heights has received an application for a Site Plan Review proposing demolition of the existing office building at 999 50th Avenue NE in preparation for a new construction car wash and a Conditional Use Permit for an over-height sound barrier. Section 9.104 of the Zoning Ordinance requires the Planning Commission to hold a public hearing to approve the Site Plan Review for the car wash and provide a recommendation to the City Council on the Conditional Use Permit for the over-height sound barrier. You are receiving this notice because the property that you own (Affected Property), and/or reside in, is located within 350 feet of the Subject Property. The Planning Commission of the City of Columbia Heights will hold a Public Hearing on this matter on Tuesday, October 1, 2024 at 6:00 p.m. in the City Council Chambers of Columbia Heights City Hall, located at 3989 Central Avenue NE. A map of the Subject Property is attached. A full copy of the application is on file at City Hall and is available for review upon request. You are welcomed and encouraged to participate in the Public Hearing for this matter by attending the October 1, 2024 Planning Commission meeting. If you cannot attend the meeting, but would like to provide input, you can submit correspondence via email to aboucher@columbiaheightsmn.gov or by mail at: City of Columbia Heights Attn: Community Development 3989 Central Avenue NE Columbia Heights, MN 55421 You can participate in the meeting live and online by using Microsoft Teams at the login link below or call-in: Join Microsoft Teams Meeting Online Meeting ID: 252 58 988 371 Passcode: ugquG3 Dial-in for Microsoft Teams Meeting +1-312-626-6799 223 Item 3. If you have any questions about this proposal, please do not hesitate to contact the City of Columbia Heights Community Development Division at (763) 706-3673. Sincerely, Andrew Boucher Community Development Planner, City of Columbia Heights ** Landowners (Commercial and Residential): If you do not reside on the Affected Property, located 350 feet from the Subject Property, it is your responsibility to share this notice with your tenants. This notice should be posted in a public place on your property or mailed directly to the tenants residing or leasing space on the Affected Property. -SUBJECT PROPERTY LOCATION- (Highlighted in orange) 224 Item 3. Name Address City 2015-3 IH2 BORROWER LP 1717 MAIN ST STE 2000 DALLAS, TX 75201 A AND A PROPERTIES LLP 527 PARK PL VADNAIS HEIGHTS, MN 55127 ALDI INC (MINNESOTA)PO BOX 460049 DEPT 501 HOUSTON, TX 77056 ALEXON DANA A & SHARI 1035 LINCOLN TER NE COLUMBIA HGTS, MN 55421 ALI, FADUMO MOHAMOUD 4920 TYLER ST NE COLUMBIA HEIGHTS, MN 55421 ALVARADO, JAIME R 1100 50TH AVE NE COLUMBIA HEIGHTS, MN 55421 BERG PAULA ELIZABETH 1100 PIERCE TER NE COLUMBIA HEIGHTS, MN 55421 CANTOS MARCO A ROJAS 700 N MORGAN AVE MINNEAPOLIS, MN 55411 COLOMBO TRUSTEE MARK R 1105 50TH AVE NE COLUMBIA HEIGHTS, MN 55421 CORNELIUS, CHRISTOPHER S 7890 QUEENSLAND LN N MAPLE GROVE, MN 55311 DAHL STREET PROPERTIES LP 526 HAWTHORNE WOOD DR EAGAN, MN 55123 HOLKESTAD PAIGE LORELLE 1060 POLK PL COLUMBIA HEIGHTS, MN 55421 JAY'S PROPERTIES LLC 16600 86TH AVE N MAPLE GROVE, MN 55311 KEHRWALD TRUSTEE THOMAS L 1060 50TH AVE NE MINNEAPOLIS, MN 55421 KNUDTSON MARLENE S 1070 POLK PL NE COLUMBIA HGTS, MN 55421 KOPONEN TRUSTEE, ROBERT H 1035 POLK PL NE COLUMBIA HEIGHTS, MN 55421 LEMA, MARIA ELVIA 4924 TYLER ST NE COLUMBIA HEIGHTS, MN 55421 LHAMO, SANGYAL 1020 50TH AVE NE COLUMBIA HGTS, MN 55421 OLSON DEAN M ETAL 1775 15TH AVE NW NEW BRIGHTON, MN 55112 P&L REAL ESTATE 3 LLC 3312 HIGHLAND DR BURNSVILLE, MN 55337 PATEL, ANITA M 1101 PIERCE TER NE COLUMBIA HEIGHTS, MN 55421 PETERSON R M & PODANY S R 1120 PIERCE TER NE COLUMBIA HEIGHTS, MN 55421 PRECISION PROPERTIES LLC 3800 N WASHINGTON AVE MINNEAPOLIS, MN 55412 RIFAI, SAMIHA 608 37TH AVE NE MINNEAPOLIS, MN 55421 ROGERS LINDA R 1057 POLK PL NE COLUMBIA HGTS, MN 55421 SANCHEZ LOPEZ CRISTOBAL 1051 POLK PL NE COLUMBIA HEIGHTS, MN 55421 SANCHEZ QUEVEDO LORENA 4918 TYLER ST NE COLUMBIA HEIGHTS, MN 55421 SIGCHA AYORA SANDRO NESTORIO 1085 50TH AVE NE COLUMBIA HEIGHTS, MN 55421 STOVER, MARY LOUISE 1040 50TH AVE NE COLUMBIA HGTS, MN 55421 STURDEVANT JOSEPH A 6182 HEATHER CIR NE FRIDLEY, MN 55432 THIRD STREET INDUSTRIES LLC 3429 EDWARD ST NE ST ANTHONY, MN 55418 TOBASI PROPERTIES LLC 10869 BENTWATER LN WOODBURY, MN 55129 VANGSGARD, JOEL M 1061 POLK PL NE COLUMBIA HEIGHTS, MN 55421 VUE MIHOKO KUATUKNUE 1085 PIERCE TER NE COLUMBIA HEIGHTS, MN 55421 WHITE CASTLE SYSTEM INC PO BOX 1498 COLUMBUS, OH 43216 WHITNEY, TYLER J 4922 Tyler Street NE COLUMBIA HEIGHTS, MN 55421 , 225 Item 3.