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Home My WebLink AboutFebruary 2, 2004 Work SessionCITY OF COLUMBIA HEIGHTS 590 40th Avenue N.E., Columbia Heights, MN 55421-3878 (763) 706-3600 TDD (763) 706-3692 Visit Our Website at: www. ci. columbia-heights, mn.us ADMINISTRATION NOTICE OF CITY COUNCIL MEETING to be hem in the CI~ OF COLUMBIA HEIGHTS as follows: Mayor Julienne Wyckoff Councilmembers Robert A. Williams Bruce Nawrocki Tammera Ericson Bruce Kelzenberg City Manaoer Walt Fehst Meeting of: Date of Meeting: Time of Meeting: Location of Meeting: Purpose of Meeting: COLUMBIA HEIGHTS CITY COUNCIL FEBRUARY 2, 2004 7:00 P.M. CONFERENCE ROOM 1 WORK SESSION AGENDA 1. County Hazard Mitigation Resolution 2. North Suburban Mutual Aid agreement 3. Discussion: Ambulance PSA 4. SAC/WAC fees 5. Receive engineering report for 43 ½ and Tyler Place 6. Feasibility Reports for the Street Rehabilitation Program - Zone 6 Seal Coating - Zone 7A 7. Discussion: Damage to private property resulting from water main breaks and sewage backups The City of Columbia Heights does not discriminate on the basis of disability in the admission or access to, or treatment or employment in, its services, programs, or activities. Upon request, accommodation will be provided to allow individuals with disabilities to participate in all City of Columbia Heights' services, programs, and activities. Auxiliary aids for handicapped persons are available upon request when the request is made at least 96 hours in advance. Please call the City Council Secretary at 706-3611, to make arrangements. (TDD/706-3692 for deaf or hearing impaired only) THE CITY OF COLUMBIA HEIGHTS DOES NOT DISCRIMINATE ON THE BASIS OF DISABILITY IN EMPLOYMENT OR THE PROVISION Of SERVICES EQUAL OPPORTUNITY EMPLOYER CITY COUNCIL LETTER Meeting of: February 9. 2004 AGENDA SECTION: ORIGINATING DEPARTMENT: CITY MANAGER APPROVAL NO: Fire All-Hazard Mitigatioll pinnning Process DATE: Snnunty 2g, 2004 DATE: NO: BACKGROUND: Anoka County is in the process of applying for an All-H,*-ard Mitigation Planning Grant. They will be creating a multi-jurisdictional plan coverin8 the cities and townships within Anoka County. Mitigation efforts are needed to reduce the impacts ~om future disasters by takin~ steps in advance to reduce potential damage. The advantases for our city are that our ex)mmtm~ty will be eligible for future HMPG funds; along with support and coordination ~om state and federal resources; a plan that will help assure the health, life and safety of our residents through risk assessment and mitigation strategies; a plan that identifies and preserves unique building types, development patterns and diversity of a community; and the ability to speed the recovery process niter a disaster. Starting November 1 2004, FEIMA will require that ali communities and counties have mitigation plans in place prior to receiving funds under the Hazard Mitigation Grant Program (HMPG). RECOMMENDED MOTION: Move to Waive the Reading of Resolution 2004-05, there being Ample Copies Available to the Public. RECOMMIiNDED MOTION: Move to Adopt Resolution 2004-05, being a Resolution to Participate in an All Ha_~rd Mitigation plnnning Process as Established Under the H_a~rd Mitigation Act of 2000. 04-14 Attachment COUNCIL ACTION: P.~OLUTIO~q NO, 2004-o~ BEING A RESOLUTION TO PARTICIPATE IN AN ALL HAZARD MtTIOATION PLANNIN(~ PRO~ES$ AS ESTABLISHED UNDER THE HAZARD MITIGATION ACT, OF 2000 WHEREAS, tho County of ANOKA is participating in a h*~l mitigatioa planning process as established under the Hazard Mitigation Act of 2000; and WHEREAS, the Act establishes a framework for the development of a co~y hazard mitigatimi plan; and WHEREAS, tho Act as part of the planning process requires public involVement and local coordination among neighboring local units of government and businesses; and WHERE.. the plan must include a risk assessment including past hazards, h*~rds that threaten the county maps ofb*.~rds, an estimate of stmcttwes at risk. estimate of potential dollar losses for each hazard, a general description of land uses and development trends; and Vfdlfl?~EAS, the plan must include a miti~p~tion stratesy including goals and objectives and an action plan identifying specific mitigation projects and casts; and WHEREAS, the plan must include a maintenance or implemm~stion process including plan updates, integration of plan into other planning documen~ and how the county will maintain public participation ~nd coordination; and Vg'l-]]~, the dra~ plum ~ be shared with ~inn~sota Pbmn~n8 for coordinafi(m of state agency review and comment on the draft; and WHEREAS, approval of the all hazard mitigatim plan will make the county elisible to receive MitiSatim Giant 1~ (HlVlPG) project grouts; and WHE~, this resolutimi does not preclude the participating cities and townships fiom preparing its own plan sometime in the future should it desire to do so. NOW THEREFORE, BE IT RESOLVED BY THE COUNCIL OF THE CITY OF COLUMBIA HEIGHTS, MINNESOTA: The City of Columbia Heights supports the county h,_~rd mitigation planning effort, wishes to join with the co~_~ _n~y in preparing the plan and recognizes ~ the plan will apply within the City. Adopted this 9"' day of February, 2004. Offered by. Seconded b~. Roll Call: CITY OF COLUMBIA HEIGHTS Patricia Muscovitz, Deputy City Clerk Mayor, Julienne Wyckoff Columbia Height Fire Department To: From: Subject: Date: Mayor and City Council Members Charles Thompson, Fire Chief North Suburban Mutual Aid Association Mutual Aid Agreement January 29, 2004 In 1980, the City of Columbia Heights signed an agreement with the North Suburban Mutual Aid Association. This Association was established to offer resources to neighboring departments should large or small events occur. In 1980, the North Suburban Mutual Aid Association had 17 Departments within its membership. As of last Tuesday, the New Brighton Fire Department became the 33rd Department to join the North Suburban. Two years ago, the Executive Board directed a designated group to evaluate the mutual aid agreement and to pay specific attention to the charging clause. After several months of research this committee presented the membership with the new document at which time the organization adopted the new agreement. This language is taken from model League of Minnesota Cities language. The City of Columbia Heights Attorney, Jim Hoet~, reviewed this agreement and concurred that this agreement is sound. C~T'cf 04-15 North Suburban Regional Mutual Aid Association Mutual Aid Agreement Purpose This agreement is made pursuant to Minnesota Statutes 471.59 which authorize the joint and cooperative exercise of powers common to contracting parties. The intent of this agreement is to make equipment, personnel and other resources available to political subdivisions from other political subdivisions. Definitions 1. "Party" means a political subdivision. 2. "Requesting Official" means the person designated by a Party who is responsible for requesting Assistance from other Parties. 3. "Requesting Party" means a party that requests assistance from other parties. "Responding Official" means the person designated by a party who is responsible to determine whether and to what extent that party should provide assistance to a Requesting Party. 5. "Responding Party" means a party that provides assistance to a Requesting Party. 6. "Assistance" means fire and/or emergency medical services personnel and equipment. Procedures Request for assistance. Whenever, in the opinion of a Requesting Official, there is a need for assistance from other parties, the Requesting Official may call upon the Responding Official of any other party to furnish assistance. Response to request. Upon the request for assistance from a Requesting Party, the Responding Official may authorize and direct his/her party's personnel to provide assistance to the Requesting Party. This decision will be made after considering the needs of the responding party and the availability of resources. Recall of Assistance. The Responding Official may at any time recall such assistance when in his or her best judgment or by an order from the governing body of the Responding Party, it is considered to be in the best interests of the Responding Party to do so. Command of Scene. The Requesting Party shall be in command of the mutual aid scene. The personnel and equipment of the Responding Party shall be under the direction and control of the Requesting Party until the Responding Official withdraws assistance. Workers' compensation Each party shall be responsible for injuries or death of its own personnel. Each party will maintain workers' compensation insurance or self-insurance coverage, covering its own personnel while they are providing assistance pursuant to this agreement. Each party waives the right to sue any other party for any workers' compensation benefits paid to its own employee or volunteer of their dependants, even if the injuries were caused wholly or partially by the negligence of any other party or its officers, employees, or volunteers. Damage to equipment Each party shall be responsible for damages to or loss of its own equipment. Each party waives the right to use any other party for any damages to or loss of its equipment, even if the damages or losses were caused wholly or partially by the negligence of any other party or its officers, employees, or volunteers. Liability For the purposes of the Minnesota Municipal Tort Liability Act (Minn. Stat. 466) the employees and officers of the Responding Party are deemed to be employees (as defined in Minn. Stat. 466.01, subdivision 6) of the Requesting Party. The Requesting Party agrees to defend and indemnify the Responding Party against any claims brought or actions filed against the Responding Party or any officer, employee, or volunteer of the Responding Party for injury to, death of, or damage to the property of any third person or persons, arising from the performance and provision of assistance in responding to a request for assistance by the Requesting Party pursuant to this agreement. Under no circumstances, however, shall a party be required to pay on behalf of itself and other parties, any amounts in excess of the limits on liability established in Minnesota Statutes Chapter 466 applicable to any one party. The limits of liability for some or all of the parties may not be added together to determine the maximum amount of liability for any party. The-intent of this subdivision is to impose on each Requesting Party a limited duty to defend and indemnify a Responding Party for claims arising within the Requesting Party's jurisdiction subject to the limits of liability under Minnesota Statutes Chapter 466. The purpose of creating this duty to defend and indemnify is to simplify the defense of claims by eliminating conflicts among defendants, and to permit liability claims against multiple defendants from a single occurrence to be defended by a single attorney. No party to this agreement nor any officer of any Party shall be liable to any other Party or to any other person for failure of any party to furnish assistance to any other party, or for recalling assistance, both as described in this agreement. Charges to the Requesting Party Subd. 1. No charges will be levied by a Responding Party to this agreement for assistance rendered to a Requesting Party under the terms of this agreement unless that assistance continues for a period of more than ten (10) hours, or as provided in Subd. 2. If assistance provided under this agreement continues for more than ten (10) hours, the Responding Party will submit to the Requesting Party an itemized bill for the actual cost of any assistance provided after the initial ten (10) hour period, except as provided in Subd. 2, including wages for personnel, materials and supplies, and other necessary expenses; and the Requesting Party will reimburse the party providing the assistance for that amount. Subd. 2. The Responding Party shall submit to the Requesting Party an itemized bill for expendable materials which shall include, but shall not be limited to foam concentrate; hazardous materials supplies such as absorbent booms and pads, hazmat suits, etc.; and misc. expenses such as cellular phone air time, and any other extraordinary expense for incidents where assistance is not more than ten (10) hours and the Requesting Party will reimburse the party providing the assistance for that amount. Subd. 3. Such charges are not contingent upon the availability of federal or state government reimbursement funds. Duration Any party may withdraw from this agreement upon thirty (30) days written notice to the other party or parties to the agreement. Execution Each party hereto has read, agreed to and executed this Mutual Aid Agreement on the date indicated. Fee schedule will be consistent with the most recent Minnesota Department of Natural Resources Fire Department Equipment Rate Schedule, and the most recent Federal Emergency Management Agency rate schedule for equipment and apparatus. Where there is a conflict in the rate schedules for similar equipment, it shall be decided in favor of the higher rate. The cost of wages for personnel shall be actual costs including hourly wage or salary and benefits. The cost of expendable supplies shall be the cost for replacement to the Responding Party. The cost of misc. expenses shall actual costs to the Responding Party. Date Entity By. Fire Chief Date Entity By Governing Authority. City of Columbia Heights Public Works Department Work Session Discussion Item Work Session Date: February 2nd, 2004 Prepared by: Kevin Hansen, Public Works Director/City Engine Item: SAC / WAC Fees Background: As part of the recent utility rate study accepted by the City in December of 2004, the Council directed staffto evaluate City SAC and City WAC charges as an additional source of revenue. The City of Columbia Heights does not currently have in place a Sewer Availability Charges (City SAC) and Water Availability Charges (City WAC). The City does have a Metro SAC charge that is a pass-through cost to the MCES from the City. Typically, SAC/WAC fees are one-time charges that are applied to new development or redevelopment at the time of building permit. MCES uses the definition of a SAC as a user's 'portion of reserve capacity in the Metropolitan Disposal Sewer System.' A detailed explanation of SAC charges is included on the attached sheet from MCES. Analysis/Conclusions: The theory supporting establishing a SAC or WAC fee is to pay for capacity in the infrastructure due to development or redevelopment in the service area. Columbia Heights is generally considered fully developed with small areas of infill development, typically by lot splits or small areas of empty property. The capacity of our infrastructure system has therefore been previously defined, calculated and sized based upon past and present uses. The definition of SAC by MCES has been upheld by the Minnesota Supreme Court, and will be used herein. Applying that definition to potential areas of redevelopment in the City of Columbia Heights requires analysis on a case-by-case basis, since our system is fully developed. This requires evaluating development proposals and calculating the additional demand on existing infrastructure. Improvements identified based upon capacity needs could then be supported by SAC or WAC charges. An alternative to this would be to have Developers pay directly for any system improvements associated with their Development proposals, as was done with the K-Mart Redevelopment. Based upon a conversation with our City Attorney, it would not be supportable to apply or require both. The City of Columbia Heights does not have a City WAC and applies only $35 for a surcharge on the MCES SAC. The City does incur expenses in administering the connections to the City infrastructure system that are not recovered by permit fees. Examples of these are Public Works time for record drawings, inspections, locates, administrative and overhead. On this basis, a proposed range for City Connection Fees in the range of $200 - 400, each, could be considered. Based upon an estimated number of new units in the range of 850 to 900 units Item: SAC / WAC Fees Page 2 over the next 5-10 years, potential revenue could be in the range of $18,000 to 36,000, annually. Based upon the definition of SAC and WAC by MCES, it is recommended by staff to review developments and conduct capacity analysis on a case-by-case basis. Any improvements to the infrastructure system would then be borne by the developer based upon the capacity analysis. Implementing large (some cities are as large as $3,000 to $4,00(~City SAC and WAC fees need to be supported by unused system capacity, which is difficult if not impossible to define in a fully developed community. Staff recommends reviewing City Sewer Connection and Water Connection Fees based upon staff costs not currently covered by other fees. Requested Action: Consider implementing new City Sewer Connection Fee and Water Connection Fee in the range of $200 to $400, each. Attachment: MCES Definition 3. DESCRIPTION OF TIE SAC SYSTEM The Service Availability Charge ("SAC") is similar to fees used by many wastewater utilities, typically known as "impact" fees. SAC has been levied since 1973 by Metropolitan Council Environmental Services (MCES) for new demand at the time of new connections or increased volume use to the Metropolitan Disposal System (MDS). SAC is assessed based upon the maximum potential daily wastewater flow, which is in mm based upon the usage of individual properties. Single family houses, townhouses, duplex units and most apartments each equal one SAC per Dwelling Unit. One SAC unit is defined as 274 gallons of daily wastewater flow volume. Commercial Properties are assessed SAC units based on maximum potential daily wastewater flow. Industrial Properties are assessed SAC units based on maximum normal daily wastewater flow volume separately for process areas and maximum potential daily wastewater flow volume for commercial areas. 3.1 History of the SAC Program While SAC has been levied by MCES since 1973, it was not part of the original rate structure. MCES, then called the "Metropolitan Sewer Board," was created in 1969 by Minnesota Statutes §473.517 subd. (3), with mandates to provide service for the rapidly growing population in the Twin Cities metropolitan area and to clean up the area's rivers and lakes. At the time the law was passed, local communities in the area, straggling to keep up with rapid growth, were operating more than 40 treatment plants. Many treatment plants served limited local areas, and they often caused serious water quality problems in the lakes and rivers which received their effluent. Heavy capital costs were inevitable as the Sewer Board needed to expand and improve treatment and collection capacity for the area, to serve a population that grew 20 percent in the 1950s and 23 percent in the 1960s. The question facing the agency in the early days was how to pay for the share of capital projects reserved for future users. Then as now, the "reserved" share represents excess capacity built into the current capital projects, so that treatment plants and interceptors provide capacity not only for today's population but for the population growth expected over the next 20 to 50 years. The practice of building in reserve capacity is based upon experience and economy. With prudent maintenance, interceptors more than a century old continue to provide service. The physical sites of sewer pipes and treatment plants seldom change; so that major land acquisition occurs only once per site. Further economies of scale in construction make it more cost effective to provide some reserve capacity in these facilities at the time the facility is first built, rather than to make small, frequent expansions in capacity. In 1971 and 1972, its first two years of operation, the then-Metropolitan Sewer Board allocated the cost of reserve capacity to individual communities based on each community's projected demand. However, many communities, particularly those in the early stages of development, Description of the SAC System, Continued found it difficult, if not impossible, to pay lump-sum charges for reserve capacity. These young communities often had neither the population nor the tax base to finance the cost of capacity they would need in years to come. It quickly became apparent that an alternative method of paying for reserve capacity had to be developed. Following intensive study and discussion with customer communities, MCES developed the Sewer Accessibility Charge system of paying for reserved capacity. The SAC system was instituted in 1973. While the SAC system proved acceptable to communities in the early stages of development, other communities challenged the SAC system in court. These communities characteristically were mature and akeady developed. In a District court ruling, later upheld by the Minnesota Supreme Court, the SAC system was found consistent with state law. 3.2 SAC Determinations MCES is a wholesaler of wastewater services for the MDS. MCES collects SAC from, and grants SAC Credit to, Local Governments. In turn, the Local Governments are responsible for SAC collection from property owners. Generally, municipalities issue the permits (building permits or plumbing permits) indicating that development or redevelopment is occurring and that the demand for sewage service is likely to change. The change in demand triggers a SAC Determination. MCES makes all Determinations for Industrial Properties, while Local Government may make Commercial decisions based on MCES criteria and guidance. MCES will assist communities in SAC Determinations, conduct them upon request, and will make the final decisions regarding the correct number of SAC units to assess. 3.3 SAC Revenue SAC revenue collected by MCES is used to f'mance the reserved capacity portion of the capital costs of the MDS, either directly ("pay-as-you-go" funding) or as debt service payments. The remaining portion, representing used capacity, is paid by the communities through monthly municipal wastewater charges. IMDS Capital Costs = SAC + Monthly Sewer Charges The per-unit Service Availability Charge is determined and approved by the Metropolitan Council ("Council"). The rate is dependent on various factors, including the annual SAC requirement, the amount of the pay-as-you-go funding anticipated, the SAC reserve balance, and the number of SAC units forecast to be collected within that period. 3.4 SAC Credits MCES gives Local Government "Credits" for a permanent reduction in the wastewater capacity needs of individual properties within the Local Government. These Credits reflect the amount of capacity either used by the Local Government at the inception of the SAC program or the amount of capacity for which SAC has been paid but that is currently unused. This is the amount the Local Government can grow (measured by SAC units) without paying additional MCES SAC. MCES SAC Credits do not have a monetary value and may not be traded between Local Govermnents. City of Columbia Heights Public Works Department Work Session Discussion Item Work Session Date: February 2nd, 2004 Prepared by: Kevin Hansen, Public Works Director/City Enginee~2~3 Item: Tyler Place NE and 43-1/2 Surface Water Report Background: From the June 24 and 25th storm events of 2003, the property owners of the apartments on Tyler Place NE, between 44th and 43-1/2 Avenues came before the City Council with issues of surface water flooding. Staff was directed to review the existing conditions and report to the Council of any possible changes in operation or physical improvements that would improve or alleviate the flooding in this area. Analysis/Conclusions: This was an area that was investigated in 1998/99, as a result of the 1997 storms that caused flooding in localized areas of the City. The recommendation at that time was to replace a 48 inch CMP pipe that runs in the rear yards, identified on the attached map between MH's 3 to 6. Due to the existing conditions in the rear yards and encroachments in the easement area, the replacement option of this pipe was not pursued with other projects in 2000. The pipe capacity was restored to close to original by removing debris and sediment in the bottom of the pipe throughout this segment. Other alternatives would then be reviewed when this area came up again in the Street Rehabilitation Zone work. Much of the background data was already assembled into a computer program and for this analysis an updated surface water model was created. The attached report by the City of Columbia Heights consultant of Bonestroo describes the existing conditions and the map depicts the area reviewed for this analysis. For the area in question, the updated analysis identified that the existing level of service is between the 2 and 5-year storm event. Various storm sewer improvements were considered and a summary of those is as follows: 1. Manipulation of the Outlet control of Labelle Pond: Labelle Pond discharges through this system at a control structure in the parking lot off of 42nd Avenue. Shutting off this outlet has no impact on flooding conditions downstream and is not recommended. 2. Replace the 48-inch Storm Sewer from MH's 3-6: Replacing this pipe with a pipe material that has better hydraulic characteristics would result in a 0.2 foot drop in the high water mark at the low point just east of MH 3. This is considered insignificant and is not recommended due to the cost, difficulty of access, and encroachment into the easement area in the rear yards. 3. Long Radius Bends: The direction of flow in a gravity piping network is most commonly Item: Tyler Place NE and 43-1/2 Surface Water Report Page 2 o changed through a manhole. This also provides access for cleaning and inspection, but decreases the efficiency of the overall system by increasing the head loss. An alternative to this, but not common, is using long radius bends to turn the flow direction in pipe. This provides an approximate 0.4 foot drop in the high water mark at the low point just east of MH 3. Rerouting Pipe on 43-1/2 Avenue: This option looks at placing a new 48-inch pipe in 43-1/2 from MH 7 and routing the upstream drainage west to Tyler Place and north on Tyler Place to the existing MH 3. This actually did not result in any change in the conditions at the low point east of MH 3 due to pipe backflow in the system. Property_ Acquisition and Creation of a Pond: This scenario would remove the properties that flood and the creation of an overflow area or pond to accommodate the backflow from the piping system. A total of 4-7 properties would need to be removed in this area. The analysis concludes that there is no single piping solution that will alleviate the flooding at the low point for the 100-storm event. Staff recommends the installation of long radius bends and 800 feet of new storm sewer pipe from MH 3 to Central Avenue during the Street Rehabilitation Zone work, in Zone 1. Requested Action: Consider accepting the Tyler Place NE and 43-1/2 Surface Water Report. Attachment: BRA Report Bonestroo Rosene Anderlik & Associates Engineers & Architects Bonestroo, Rosene, Anderlik and Associates, Inc. is an Affirmative Action/Equal Opportunity Employer and Employee Owned Principals: Otto G. Bonestroo, RE. · Marvin L. Sorvala, RE. · Glenn R. Cook, RE. · Robert G. Schunicht, PrE. · Jerry A. 8ourdon. RE. · Mark A. Hanson, RE. Senior Consultants: Robert ~ Rosene, RE. · Joseph C. Anderlik, RE. · Richard E. Turner, RE. · Susan/VI. Eberlin, C.RA. Associate Principals: Keith A. Gordon. RE. · Robert R. Pfefferle, RE. · Richard g/. Foster, RE. · David O. Loskota, RE. · Michael T. Rautmann, PE. · Ted K. Field, RE. · Kenneth R Anderson, RE. · Mark R. Rolfs, RE. · David A. Bonestroo. M.B.A. · Sidney R ~/illiamson, RE., L.S. · Agnes M. Ring, M.B.A. · Allan Rick Schmidt, RE. · Thomas W. Peterson, RE. · James R. Maland, RE. · Miles 8. Jensen, RE. · L. Phillip Gravel III, RE. · Daniel J. Edgerton, RE. · Ismael Martinez, RE. · Thomas A. Syfko, RE. · Sheldon J. Johnson · Dale A. Grove, RE. · Thomas A. Roushar, RE. · Robert J, Devery, RE. Offices: St. Paul, St. Cloud, Rochester and ~Villmar, MN - Milwaukee, VK/I · Chicago, IL ~Z/ebsit e; www. bonestroo.com October 28, 2003 Kevin Hansen Director of Public Works City of Columbia Heights 637 38t~ Avenue NE Columbia Heights, MN 55421-3878 Re: Results for Tyler Place NE hydraulic modeling Our file no. 332-03-113 Kevin: This letter report summarizes our hydraulic analysis for Tyler Place NE. · BACKGROUND AND EXISTING CONDITIONS In conjunction with the City's 1998 Stormwater Improvements, an XP-SWMM model was created for this area. The current analysis utilizes additional software features developed since 1998 to quantify inlet capacity, overland flow, and street flow. Using the updated model, we considered a number of storm sewer improvements to alleviate flooding in the area bounded by Tyler Place NE, 44t~ Avenue NE and 43'a Va Avenue NE. The improvements evaluated include: · Manipulation of the Labelle Pond outlet · New storm sewer under Tyler Place NE and in the backyards north of 43~a ~ Ave · Long radius bends on the existing pipe between manhole 3 and manhole 1 (see attached figure) · New storm sewer under 43~a ~ Ave · Creation of a pond where the apartments currently sit Referring to the attached figure, the flooding occurs above a 48-inch CMP between manholes labeled CB-Rose and MH 3. Flood damage occurs to apartment buildings in this location. Historically, flooding has also occurred in backyards and near one home in the single family residential area immediately east of the apartments. Existing Conditions The primary revision to the 1998 modeling is to account for flooding, and surchargingin the system. In instances where pipes are over capacity, excess runoff is routed via street flow. This leads to a more accurate description of what occurs in the stormwater system. The following table shows the modeling results for existing conditions, 100-year event. The flows include those in the storm sewer and those running overland. 2335 ~./est Highway 36 · St. Paul, MN 55113 · 651-636-4600 · Fax: 651-636-1311 Letter to Kevin Hansen Tyler Place NE Hydraulic Modeling October 28, 2003 Page 2 of 5 Table 1 Existing Conditiong Modeling Results Manhole Pipe Flow Overland Flow HWL at Node Rim Elevation From From To (cfs) (cf s) Mit 6 MH 5 49.9 918.7 923.3 Mit 5 CB-Rose 47.7 23.7 918.0 917.3 CB-Rose MH 3 55.6 48 917.9 914.5 Mit 3 MH 1 70.9 917.8 917.3 MH 1 Ex Mit 77.4 917.2 917.2 Ex Mit MH 4a 229.3 916.3 916.1 MH 4a MH 2a 248.0 910.4 911.1 MH 2a MH 10 204.9 80 898.0 897.5 MH 10 Jackson Pond 158.9 0.2 895.1 895.0 Jackson Pond 175 - 894.4 - CB-Rose is located in the low spot of the parking lot adjacent to the apartments. The catchbasin rim is at roughly 914.5'. The 100-year HWL is 917.9' which causes water to crest into Tyler Place at a 48-cfs peak. The 917.9' elevation indicates significant flooding of the property, verifying the flood hazard. In fact, the existing level of service for storm sewer in this area is the · 5-year event (3.5 inches in 24 hours) with surcharge but no overland flow · 2-year event (2.7 inches in 24 hours) with gravity flow STORM SEWER IMPROVEMENTS Manipulation of Labdle Pond outlet Disconnecting the Labelle Pond outlet by either manually or automatically shutting it off results in no change in HWLs downstream at Tyler Place NE. New Storm Sewer, Tyler Place NE and Baekyards Another option to alleviate flooding is to replace the existing 48-inch CMP with 48-inch RCP from CB-Rose perhaps as far as the manhole at the intersection of Central Avenue NE and 44t~ Avenue NE. An RCP has slightly more capacity than CMP due to its lower roughness coefficient. Up to 800-feet of pipe would be replaced under this scenario. The following table presents the results of replacing the pipe with RCP. Letter to Kevin Hansen Tyler Place NE Hydraulic Modeling October 28, 2003 Page 3 of 5 Table 2 New Storm Sewer, Tyler Place NE and Backyards . Modeling Results Manhole Pipe Flow Overland Flow HWL at Node Rim Elevation From From To (cf s) (cf s) MH 6 MH 5 50 918.6 923.3 MH 5 CB-Rose 48.4 18.8 917.9 917.3 CB-Rose MH 3 73.7 47.9 917.7 914.5 MH 3 MH 1 83.8 917.6 917.3 MH 1 Ex MH 90 917.1 917,2 Ex MH lVlYI 4a 229.3 916.5 916.1 MH 4a MYI 2a 248.4 910.4 911.1 MH 2a MH 10 206.4 81 898.0 897.5 MH 10 Jackson Pond 159.4 0.3 895.1 895.0 Jackson Pond 173.9 894.4 - There isa 0.2 foot drop in the HWL at CB-Rose and downstream at MH 3 in Tyler Place. This decrease in HWL at Tyler Place does not lead to increases in HWLs downstream of Central. The decrease in overland fl0w onto Tyler Place is not significant. Long Radius Bends The third scenario involves installing long radius bends in two locations. Eight 7.5° RCP bends would replace MH 3, mid-block in Tyler Place, and MH 1, in Tyler Place and 44~. The long radius bends decrease overall head loss since they replace poorly configured manholes. Under this scenario, the CMl:' from CB-Rose to the existing manhole in Central Avenue is replaced with RCP. Table 3 notes the pipe flow and HWLs resulting from adding long radius bends and replacing the CMP. Table 3 Long Radius Bends Modeling Results Manhole Pipe Flow Overland Flow HWL at Node Rim Elevation From From To (cf s) (cf s) MH 6 MH 5 50 918.6 923.3 MH 5 CB-Rose 48.9 14.7 917.9 917.3 CB-Rose MH 3 92.3 58.2 917.5 914.5 MH 3 Mt-I 1 103.1 917.4 917.3 Mil 1 Ex MH 109.6 917.0 917.2 Ex MYI MH 4a 233.2 4.4 916.8 916.1 MH 4a MI-I 2a 248.9 - 910.5 911.1 MH 2a MH 10 207.3 82 898.0 897.5 MH 10 Jackson Pond 159.6 0.3 895.2 895.0 Jackson Pond - 174.7 - 894.4 - Under this scenario the HWL at CB-Rose decreases 0.4' from what is modeled for existing conditions - from 917.9' to 917.5'. To accomplish this reduction the HWL at the existing manhole on Central Avenue does increase from 916.3' existing conditions to 916.8' under this scenario. This increased HWL disappears by the time MH4a, downstream' of Central, is reached. Letter to Kevin Hansen Tyler Place NE Hydraulic Modeling October 28, 2003 Page 4 of 5 New Storm Sewer under 43rd V2 Avenue Since the backyard storm sewer is over capacity, we evaluated re-routing the upstream drainage from MH 7, mid- block on 43~ ½ Ave., to MH 18, at the intersection of 434 V2 Ave. and Tyler. This involved installing 930-feet of 48-inch RCP in 434 ~ Ave. and increasing the existing 15-inch in Tyler (from MH 18 to MH 3) to a 48-inch pipe. Under this scenario the backyard pipe is only taking its direct drainage. Two options were modeled: · Existing CMP pipe in backyaxd · New RCP pipe from CB-Rose to Tyler Place Table 4 New Storm Sewer under 434 ~ Avenue Modeling Results Existing CMP Manhole Pipe Flow Overland Flow HWL at Node Rim Elevation From From To (cf s) (cfs) MH 6 MH 5 923.3 MH 5 CB-Rose 917.3 CB-Rose MH 3 48.7 17.9 917.9 914.5 MYI 3 MH 1 88.0 6.3 917.9 917.3 MH ! Ex MH 94.2 0.3 917.4 917.2 Ex MH MH 4a 231.1 0.8 916.6 916.1 MH 4a MH 2a 248.9 910.5 911.1 MH 2a MH 10 207.3 82 898.0 897.5 Mit 10 Jackson Pond 159.6 0.3 895.2 895.0 Jackson Pond 174.7 894.4 Table 5 New Storm Sewer under 43~a ~ Avenue Modeling Results New RCP Manhole Pipe Flow Overland Flow HWL at Node Rim Elevation From From To (cfs) (cfs) MH 6 MH 5 - - - 923.3 MH 5 CB-Rose - - - 917.3 CB-Rose MH 3 33.8 20 918 914.5 MH 3 MH 1 74.4 8.7 918 917.3 MH 1 Ex MH 82.7 1.1 917.5 917.2 Ex MH Mit 4a 229A - 916.5 916.1 MH 4a MH 2a 248.9 - 910.5 911.1 MH 2a IvlH 10 207.3 82 898.0 897.5 MH 10 Jackson Pond 159.6 0.3 895.2 895.0 Jackson Pond - 174.7 - 894.4 - Both options slightly increased the HWL in the CB-Rose. This increase is not considered significant and is due to the backflow entering the backyard storm sewer from MH 3 in Tyler Place as well as overland flow from surcharging at MH 3. Letter to Kevin Hansen Page 5 of 5 Tyler Place NE Hydraulic Modeling October 28, 2003 This scenario does not stand alone as even a partial solution to the flood problems at Tyler Place NE. It is clear that the backyard storm sewer is in poor condition and is not in a desirable location for a main storm sewer line. For this reason the City should, upon reconstructing 43~d ½ Ave., build the 48-inch parallel RCP and route water away from 'the backyard pipe. Creation of a Pond One scenario is simply to remove those buildings that flood. This has been a strategy pursued by the City in other areas where no other option was available. We have not modeled how such a pond would perform because it is clear that any storage could reduce discharge rates into the downstream system while providing better flood protection to properties that remain in the Tyler Place NE area. The size of the pond would simply be what could fit into the area made available by removing all the buildings that flood. Conclusions and Recommendations There is nostorm sewer solution to the flooding at Tyler Place NE that would not significantly increase flood risk downstream. We have evaluated several alternatives that do not increase flows or HWLs downstream of Central Avenue. The best of these alternatives is the 800 feet of new RCP to Central Avenue plus the long radius bends. This option reduces the Tyler Place NE HWL by approximately 0.4'. This option's 917.5' HWL still represents a significant flood hazard for the area. Given that the benefit provided by the new storm sewer is modest, it would make sense to only install new storm sewer as part of a regularly scheduled street reconstruction project. We also recommend that upon reconstruction of 43ra ~ new storm sewer be installed under the street so that flow can be routed away from the backyard pipe. This has more to do with the backyard pipe's poor condition and limited access than with any flood benefit. If you have any questions regarding the content of this letter report, please call me at 651-604-4740. Sincerely, BonesJxoo~'~osene, Anderlik, and Associates Robert Barth Ld tH.,C' t ~ 'nd d ~o. ~ 30XOld 1303' gL£1. ~ '~ 9L£L ~ ~ OOrt 3~JOFq9913 -z CITY COUNCIL LETTER Meeting off 2/2/04 AGENDA SECTION: WORK SESSION ORIGINATING DEPARTMENT: CITY MANAGER PUBLIC WORKS ,~0~~ ITEM: RESOLUTION 2004-06 ACCEPTING THE BY: K. Hansen ~ BY: FEASIBILITY REPORT FOR ZONE 6 STREET SEAL DATE: 1/29/04-- D COATING AND ORDERING THE PUBLIC IMPROVEMENT HEARING Background: Staffhas developed preliminary plans and prepared a Feasibility Report for Zone 6 of the Seal Coat Program. The Zone 6 area is bounded by Central Avenue on the east, 40t~ Avenue on the south, University Avenue Service Drive on the west and 44th Avenue on the north. Zone 6 streets not included in the recent rehabilitation program will be seal coated, except University Avenue Service Drive. Also included in the program is 45th Avenue from University Avenue Service Drive to 5th Street. Analysis/Conclusions: The seal coat program helps preserve and maintain existing bituminous streets in good driving condition. Particular issues are summarized below: 1. Assessment Methodology: The Seal Coating project will be assessed on a Street and Avenue parcel basis. Avenue assessments are 1/3 of the street rate extending ½ block in either direction of the Avenue. This assumes that all parcels benefit equally for the strategy in front of their property or abutting it, in the case of the Avenue. The estimated unit cost assessment is $ 207.00 per Street parcel and $ 69.00 per Avenue parcel. 2. Financing: The estimated construction cost is $132,480. Seal coating is 100% assessed. 3. Meeting dates: Staff is recommending the public improvement hearing be scheduled before the hearing for Zone 7A, on March 9, 2004. By agreement previously approved by City Council, the bidding process will be handled by the City of Coon Rapids as part of a seven (7) City JPA for various street maintenance activities. Recommended Motion: Move to waive the reading of Resolution 2004-06, there being ample copies available for the public. Recommended Motion: Move Jo adopt Resolution No. 2004-06 being a Resolution calling for an Improvement Hearing for Zone 6 Street Seal Coating, City Project 0302, on March 9, 2004. KH:jb Attachment: Resolution Feasibility Report COUNCIL ACTION: City of Columbia Heights FEASIBILITY FOR REPORT 2004 STREET REHABILITATION SEAL COAT IMPROVEMENTS CITY PROJECT 0301 JANUARY, 2004 ENGINEERING DEPARTMENT 63 7 38th Avenue NE, Columbia Heights, MN 55421 763- 706-3 700 o;o 763- 706-3 701 (Fax) BITUMINOUS SEAL COAT IMPROVEMENTS ZONE 6 COLUMBIA HEIGHTS, MINNESOTA LOCATION: PROJECT NUMBER 0301 All local bituminous streets in Zone 6 are included, except University Avenue Service Road and those streets that have been improved as part of the street rehabilitation program. Zone 6 is the area between University Avenue Service Drive and Central Avenue, from 40th Avenue to 44th Avenue. Also included is 45th Avenue from University Avenue Service Drive to 5th Street. This feasibility study includes an analysis of proposed bituminous street patching and repair, and seal coat. IMPROVEMENTS: Repair of Concrete Curb and Gutter, Patching and Seal Coat of Street Surface. INITIATION: City Council, as part of an ongoing bituminous street preservation strategy. OWNERS ABUTTING The location of each street is described below and shown on the attached map. The total number of parcels is 1,112. This is comprised of 1,109 privately-owned parcels and 3 City-owned parcels. OWNERS IMPACTED: 1. 4th Street 2. 5th Street 3. 6th Street 4. 41 st Avenue 5. 42nd Avenue 6. 43rd Avenue 7. 45th Avenue 40th Avenue to 44th Avenue (86) 40th Avenue to 44th Avenue (106) 40th Avenue to 44th Avenue (107) 4th Street to Central Avenue (242) University Ave Service Dr to Central Avenue (275) 4th Street to Central Avenue (249) University Ave Service Dr to 5th Street (47) ISSUES: The City Council identified the need to preserve and maintain the existing bituminous streets and extends the life of the pavement in good driving condition. FEASIBILITY: The improvement as proposed is necessary, cost-effective, and technically feasible. The project is recommended as proposed in the study. The improvements, once completed, will be a benefit to the properties served. SCHEDULE: Construction is scheduled to begin in the spring of 2004, with substantial completion occurring in late summer. This year the seal coat contract is being administered by the City of Coon Rapids under a joint powers agreement with several north-metro cities. Council receives draft Feasibility Report Council accepts Feasibility Report and orders Public Improvement Hearing Bid Opening for Seal Coating (City of Coon Rapids) Columbia Heights Council Approves Bids Public Improvement Hearing and Council orders Public Improvement Project Coon Rapids' Council Awards Contract Begin Construction - Bituminous Repairs (Force Account) Begin Construction - Seal Coat (Project-wide) Construction Completed (Project-wide) February 2 February 9 February 13 February 23 March 9 March 16 May 15 June 15 September 3 FINANCING: The estimated cost for the Seal Coating portion of the project is $132,480. ASSESSMENT: The Seal Coating project will be 100% assessed on a Street and Avenue parcel basis. Avenue assessments are 1/3 of the street rate extending ½ block in either direction of the Avenue. This assumes that all parcels benefit equally for the strategy in front of their property or abutting it, in the case of the Avenue. The estimated unit cost assessment is $ 207.00 per Street parcel and $ 69.00 per Avenue parcel. DESCRIPTION OF WORK INVOLVED: · Public Works Staff- provides bituminous street repairs and patching throughout the Seal Coat project zone. Includes cutting and removal of deficient segments of street section, milling of larger areas of deficient bituminous areas, and patching or paving with new bituminous. · Concrete curb and gutter repairs - provide repairs to short segments of curb & gutter due to damage or joint separation which impedes gutter flow. · Application of Seal Coat (emulsion and cover aggregate) - Application of emulsion by computer controlled mechanical sprayers immediately followed by spreading FA-3 modified trap rock as a cover aggregate. The road surface is finished by rolling with a tire-based roller for proper aggregate penetration and distribution. 2004 IMPROVEMENT PROGRAM COLUMBIA HEIGHTS, MINNESOTA ESTIMATED ASSESSMENTS - PROJECT 0301 ZONE 6 STREET SEAL COATING PROGRAM (Section 35, T30N, R24W) Seal Coatinl~: Estimated Cost $132,480. Assessable Frontage Street: 16,077 LF Avenue: 51,678 LF Estimated Cost per Parcel Street: $ 207.00 Avenue: $ 69.00 3/~¥ 'lV~IJ. N30 CITY COUNCIL LETTER Meeting off 2/2/04 AGENDA SECTION: WORK SESSION ORIGINATING DEPARTMENT: CITY MANAGER PUBLIC WORKS~~~; ~ J ITEM: RESOLUTION 2004-07 ACCEPTING THE BY: K. Hanse BY: I- FEASIBILITY REPORT FOR ZONE 7A STREET DATE: 1/29/04-- DATE~L/~ REHABILITATION AND ORDERING THE PUBLIC IMPROVEMENT HEARING Background: Staff has developed preliminary plans and prepared the Feasibility Report for Zone 7A of the Annual Street Rehabilitation Program. The Zone 7 area is bounded by California Street to University Avenue, from 37th Avenue to 45th Avenue and University Avenue Service Road to Central Avenue from 37th Avenue to 40th Avenue. Council amended this area in January of 2004 to Zones 7A and 7B. Zone 7A is bounded by Central Avenue on the east, 37th Avenue on the south, University Avenue Service Road on the west, and 40th Avenue on the north and 7th Street, from 40th Avenue to 42nd Avenue. Analysis/Conclusions: Attached is the Feasibility Report that details the scope of work for Street Rehabilitation in Zone 7A. Particular issues are summarized below: 1. Rehabilitation Strategies: Three treatment strategies are utilized in the street rehabilitation program: mill and overlay, partial reconstruction, and full reconstruction. In Zone 7A, full reconstruction is proposed for each street. A fourth strategy, seal coating, is addressed under separate engineering reports when seal coating work is proposed. Staff utilizes three methods in evaluating the condition of the street and determining appropriate treatment: Present physical structure (cross-section): Each street within Zone 7A has been excavated down to their sub-base material and the individual street segment cross-sections are catalogued. Non-destructive strength determination and condition rating: Braun Intertec, a geo-technical engineering consultant, conducted tests on all streets at 50-foot intervals with a dropping weight deflection test. From this, the strength of the road segment is determined. Braun also develops their own pavement conditions index. Overall Condition Index (OCI): Staff also reviews each street segment by measuring the type and quantity of each type of cracking in the pavement. This information along with other factors such as drainage and physical structure is used to determine an "overall condition index". The results are then used to determine the appropriate treatment to maximize the life of the street. 2. Utilities Replacement: Utilities have been reviewed in Zone 7A and the attached map represents where staff is recommending replacement. Staff utilized televising, history of water main breaks, age of water main and services, leakage testing (independent testing), and previous engineering reports in determining utility replacements. Many of the water mains were installed in the early 1900's in this area and are unlined which contributes to water quality problems. COUNCIL ACTION: CITY COUNCIL LETTER Meeting of: 2/2/04 AGENDA SECTION: WORK SESSION ORIGINATING DEPARTMENT: CITY MANAGER PUBLIC WORKS ITEM: RESOLUTION 2004-07 ACCEPTING THE BY: K. Hanson BY: FEASIBILITY REPORT FOR ZONE 7A STREET DATE: 1/29/04 DATE: REHABILITATION AND ORDERING THE PUBLIC IMPROVEMENT HEARING Continued - Page 2 3. Assessment Methodology: Street Rehabilitation Zones 1, 2 and 3 all followed the existing assessment policies for each area. Under the 1999 Alley Construction Program and in Zones 4, 5, 6A and 6B, a "unit" assessment methodology was employed rather than using a "front foot" rate basis. The area of Columbia Heights west of Central Avenue is essentially a block type development pattern with streets and avenues. The existing assessment policy for this area would involve "street" assessments and "avenue" assessments. The "street" frontage (typical front of property or where driveway access is) would pay a particular rate for the full frontage for that type of treatment (mill & overlay or full reconstruction, for example) used on that street. That same parcel would pay a reduced rate for the avenue for the full frontage. I am a proponent ofumt basis assessment methodology in reconstruction areas as it has been my experience that the court system has accepted this rationale from an appeal basis. Going to a unit basis methodology would still create different rates for street and avenue dependent upon the type of treatment the adjacent avenues receive. 4. Scope of Work: At the January 20th, 2004 work session, staff discussed amending the Zone 7 area. Staff proposed breaking the Zone into two areas, with the construction completed in successive years (2004 & 2005). The current policy provides a 50/50 cost share for full reconstruction streets. Construction on 7th Street from 40t~ Avenue to 42nd Avenue is also included. This construction was delayed fi:om 2003 to 2004 for financial considerations. 5. Financing: Street Rehabilitation Zone 7A: The estimated construction costs are as follows: 1. Full street reconstruction: 2. Utilities: $1,341,300. $ ** Project funding is proposed as follows: Assessments $ 785,400. Infrastructure Fund: $ 555,900. Sanitary Sewer Fund: $ ** Water Construction Fund: $ ** Storm Sewer Fund $ ** The costs and associated funding for utility work (**) will be further developed during the final design. COUNCIL ACTION: CITY COUNCIL LETTER Meeting off 2/2/04 AGENDA SECTION: WORK SESSION ORIGINATING DEPARTMENT: CITY MANAGER PUBLIC WORKS ITEM: RESOLUTION 2004-07 ACCEPTING THE BY: K. Hansen BY: FEASIBILITY REPORT FOR ZONE 7A STREET DATE: 1/29/04 DATE: REHABILITATION AND ORDERING THE PUBLIC IMPROVEMENT HEARING Continued - Page 3 6. Past Assessments: Zone 7A does not have areas that have had improvements assessed in the last 10 years. 7. Concurrent Projects: None. 8. Utility Issues: Staff has evaluated both the sanitary sewer system and the storm sewer system for maintenance needs or improvements. The sanitary sewer main system has been cleaned and televised by staff and the reports indicate that overall the condition of the piping is acceptable with minor corrective recommendations by staff. At some locations, the private sanitary sewer service pipe has settled away from the connection to the sanitary sewer main. (This connection is commonly referred to as a "wye".) Staffis estimating approximately 20 service connections will need to be replaced. In accordance with the City ordinance this is owned by the homeowner and will be assessed similar to the water service. The report does provide deficiencies several catch basins in Zone 7A. Staff is recommending replacement of structures due to deteriorated block or brick construction. Storm sewer construction is proposed to help alleviate the flooding on Van Buren Street properties. A relief line will be extended to Huset Park from this with matching grant funding coming from the DNR. Staffhas also conducted an age survey of water service lines in areas where the water main will be replaced and recommends that sub-standard water service lines be replaced and assessed to the benefiting properties for the actual construction cost. 9. Meeting Dates: Staff has established the following meeting dates: Resident Informational: March 3, 2004 Public Hearing: March 9, 2004 Recommended Motion: Move to waive the reading of Resolution 2004-07, there being ample copies available for the public. Recommended Motion: Move to adopt Resolution No. 2003-07, which accept the Feasibility Report for Zone 7A Street Rehabilitation and establishes the Public Improvement Hearing for March 9, 2004. rd-I:jb Attachments: Resolution, Feasibility Report COUNCIL ACTION: City of Columbia Heights FEASIBILITY FOR REPORT 2004 STREET REHABILITATION IMPROVEMENTS: Zone 7A CITY PROJECT 0402 FEBRUARY, 2004 ENGINEERING DEPARTMENT 63 7 38th Avenue NE, Columbia Heights, MN 55421 763- 706-3 700 ~ 763- 706-3 701 (Fax) STREET REHABILITATION IMPROVEMENTS COLUMBIA HEIGHTS, MINNESOTA ZONE 7A PROJECT NUMBER 0402 LOCATION: ZONE 7 (Original Zone) - AREA BOUNDED BY CALIFORNIA STREET TO UNIVERSITY AVENUE, FROM 37TM AVENUE TO 45TM AVENUE, AND UNIVERSITY AVENUE TO CENTRAL AVENUE, FROM 37TM AVENUE TO 40TM AVENUE. ZONE 7A (Amended) - AREA BOUNDED BY UNIVERSITY AVENUE TO CENTRAL AVENUE, FROM 37TM AVENUE TO 40TM AVENUE This feasibility study includes an analysis of proposed street rehabilitation within Zone 7A and 7th Street from 40th Avenue to 42nd Avenue. IMPROVEMENTS: Full Street Reconstruction - Concrete curb and gutter, granular sub-base if needed, new aggregate base and new bituminous surfacing. Utility Construction - Water main construction and replacement as required to improve or maintain the distribution system. Sanitary sewer replacements and repairs as required to maintain the collection system. Storm sewer construction and repairs as required to improve or maintain the collection system. Hazardous Sidewalk- New aggregate base and new concrete sidewalk as required to reduce the potential of tripping hazards. INITIATION: City Council in accordance with the Street Rehabilitation Policy. OWNERS ABUTTING OR IMPACTED: Full Street Reconstruction 1. 7th Street 40th Avenue to 42nd Avenue (52) 2. Quincy Street 37th Avenue to 39th Avenue (35) 3. Quincy Street South of 40th Avenue (27) 4. Jackson Street 37th Avenue to 40th Avenue (74) 5. Van Buren Street 37th Avenue to 40th Avenue (76) ISSUES: The following is a study of the key project issues. Street Reconstruction The proposed roadway would consist of a two lane bituminous cross section with concrete curb and gutter. The roadway width would generally match the existing street width, with the exception of the north end of Jackson Street. Jackson Street will be widened from the alley to 40th Avenue to accommodate on street parking for the Library and surrounding businesses. It should be noted that some mature boulevard trees may need to be removed to accommodate the new curb and gutter. As in previous zones, this is necessary due to root and mink growth interfering with the placement of new concrete curb & gutter and where present, sidewalk. Water main replacement is proposed for Quincy Street, 37th to 39th Avenues, Jackson Street, 37th to 40th Avenues, and Van Buren Street, 37th to 39th Avenues. Staff is estimating approximately 87 water services may need to be replaced. This is based on the number of homes built before 1950. The type and size of water service is field verified during construction. Any water service other than ~" or larger copper is replaced. Storm sewer construction is proposed to help alleviate the flooding on Van Buren Street properties. In addition to the removal of the home at 3942 Van Buren Street, a relief line will be extended to Huset Park. Sanitary sewer main repairs will be more extensive than in years past. At some locations, the private sanitary sewer service pipe has settled away from the connection to the sanitary sewer main. (This connection is commonly referred to as a "wye".) Staff is estimating approximately 20 service connections will need to be replaced. In accordance with the City ordinance this is owned by the homeowner and will be assessed similar to the water service. At other locations, roadway construction will include minor modifications to existing sanitary and storm sewer and water main utility surface structures in order to meet proposed finish grades. City staff recommends hazardous sidewalk within Zone 7A be replaced as part of the project and included with the cost. Hazardous sidewalk will be assessed in accordance with the City policy. FEASIBILITY: The proposed improvement project is necessary to provide consistency with the street rehabilitation policy, cost-effective with the inclusion of partial city funding, and technically feasible as prescribed in the construction recommendations found elsewhere in this report. The project and project elements should be implemented as proposed in this study. The improvements, once completed, will provide a benefit to the properties served. SCHEDULE: Construction is scheduled to begin in late spring of 2004, with substantial completion occurring in the late summer of 2004. Council receives draft Feasibility Report and discusses issues February 2 Council receives final Feasibility Report and orders Public Improvement Hearing February 9 Public Informational meeting prior to Public Improvement Hearing Public Improvement Hearing and Council orders Public Improvement Project Council Approves Plans and Specifications, Authorizes Advertisement for Bids Bid Opening Council Awards Contract Begin Construction Construction Completed March 3 March 9 March 22 May 4 May 10 June 1 September 3 FINANCING: Financing would be a combination of assessments to benefitted properties, infrastructure fund including Municipal State Aid funds (population apportionment), and utility funds. Zone 7A The estimated construction costs for each option are as follows: Full street reconstruction $1,341,300. Type of Construction Full Reconstruction Proposed Assessments Infrastructure Fund $ 785,400. $ 555,900. Percentages proposed to be assessed for street rehabilitation are consistent with the policy followed under each of the prior street rehabilitation zones. Utility work performed as part of the Zone 7A project will be paid for from the appropriate utility fund. ASSESSMENT: Assessments will be in accordance with the City's Street Rehabilitation Ordinance and past practice. Assessments can be based on a per foot basis or a parcel basis. Following the other Zones assessment policies, assessments would be on a Street and Avenue parcel basis. A Street assessment would be at the developed rate for the particular rehab strategy while Avenue assessments would be at approximately 1/3 of the street rate extending ½ block in either direction of the Avenue. This assumes that all parcels benefit equally for the strategy in front of their property or abutting it, in the case of the Avenue. 2004 IMPROVEMENT PROGRAM COLUMBIA HEIGHTS, MINNESOTA ESTIMATED ASSESSMENTS - PROJECT NO. 0402 ZONE 7A STREET REHABILITATION PROGRAM (Section 35, T30N, R24W) I. FULL RECONSTRUCTION Estimated Cost: Assessable Cost: $1,341,300. $ 785,400. Assessable Frontage Street: Avenue: 11,274 L.F. 3,933 L.F. Estimated Assessed Cost per Parcel Residential Street: Residential Avenue: $ 2,550.00 $ 850.00 ............ ~ ~ > .... ld NOS~ 578 673 572 586 567 562 557 55O 532 ~