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Home My WebLink AboutContract 2301~resun in6ertec Carparafiian ~~ ,, ; ,, ~ June 11, 2010 Kevin Hansen City of Columbia Heights 637 38th Ave NE Columbia Heights, MN 55421-3897 Re: Proposal for Construction Materials Testing 2010 Street Rehabilitation Columbia Heights, MN Dear Mr. Hansen: Proposal BL-10-06870 2301 We appreciate the opportunity to submit this proposal to provide construction materials testing services during the 2010 Street Rehabilitation Project for the City of Columbia Heights. Our Understanding of Project This project will include work on many streets within the City of Columbia Heights. These streets include 4th Street, Washington Street, 46th Avenue, Monroe Street, and 45th Avenue. This project will also include the City of Columbia Heights Library Parking Lot, and the Hart Boulevard Trail. This project is broken down into two main types of rehabilitation, the first being partial three city blocks of partial street reconstruction which will include full depth reclaim of the existing materials, minor utility improvements, and bituminous paving. The second main type of rehabilitation will include a full width mill and overlay of 13 blocks of city street with bituminous paving. Work on the library parking lot will consist of bituminous paving and general concrete placement. The construction of the Hart Boulevard Trail portion of this project will consist of some concrete curb and gutter and new aggregate base and bituminous paving. Available Project Information This proposal is based on our review of the documents described below. We will submit a revised scope of services and cast if the project changes. ^ Project plans prepared by the City of Columbia Heights and dated April 26, 2010. ^ Request for Proposal Letter. ^ Discussions with Kathy Young. - -. r. ~~, ~ p~- ~: 1'r~,vidir~~ c~i.,,1~~~,~rin; ~i~~d c:r~tir„nn~ental s~~l~ifriuns siT~~r L~~~i City of Columbia Heights Proposal BL-10-06870 June 11, 2010 Page 2 Scope of Services We will provide technicians or engineers -working under the direction of a Professional Engineer -to perform our observation and testing services. Observation and testing services will be performed on an on-call, as-needed basis as requested and scheduled by you or the project contractors. We have reviewed the available project information and propose to: Measure the in-place dry density, moisture content and relative compaction of fill placed for utility backfill for compliance with the project documents -this task includes performing laboratory Proctor tests to provide maximum dry densities from which the relative compaction of fill can be determined. Sandcone density testing will be performed on utility trench backfill. ^ Sample and test aggregate base, full depth reclaim and bituminous pavement materials for compliance with the project documents -this task includes laboratory gradation of the aggregate base material and Rice specific gravity, Marshall density, asphalt content and extracted aggregate gradation tests of the bituminous. ^ Measure the in-place density, of aggregate base and full depth reclaim material placed for pavement support, for compliance with the project documents -this task includes performing Mn/DOT's Modified DCP. ^ Measure the thickness and density of the compacted bituminous pavement by the core method for compliance with the project documents -this task includes coring equipment rental. ^ Sample and test fresh concrete associated with pavement and/orcurb-and-gutter for compliance with the project documents, and cast test cylinders for laboratory compressive strength testing. We assume that we will be able to appropriately dispose of excess concrete (and associated wash water) on site at no additional cost to us. • Measure and report the compressive strength of the concrete test cylinders for compliance with the project documents. ^ Provide project management for the quality control observation and testing services described above -this task includes scheduling field personnel, reviewing observation and test reports, and communicating 4vith you, the project contractor(s), other project team members and the building official, as needed. Scheduling Assumptions Based on our understanding of the project and the available project information, we assume the work for this phase of the project will proceed according to the follawing schedules: • Compaction testing will be performed using sand cone methods on the utility trench backfill, a minimum of two tests will be performed each trip with two trips assumed. City of Columbia Heights Proposal BL-10-06870 June 11, 2010 Page 3 • Compaction testing will be performed using Mn/DOT Modified DCP on the aggregate base and full depth reclaimed material. A minimum of four tests will be performed each trip with four trips assumed. We estimated that three sets of concrete tests will be required to complete the project. One for sidewalk/median concrete, one for curb and gutter, and one for driveway aprons. We do understand the requirement to test three consecutive trucks to establish quality control and we feel our hours reflect this requirement per the testing specifications. • Based off the total bituminous tonnage for the project we assume eight samples being tested for this material. If the pace of construction is different than described above, this proposal should be revised. COSt We will furnish the services described herein far an estimated fee of $ 9,205. A tabulation showing hourly and/or unit rates associated with our proposed scope of services is attached. Additional Services and Overtime It is difficult to estimate all of the services, and the quantity of each service, that will be required for any project. Our services are also directly controlled by the schedule and performance of others. For these reasons, our actual hourly or unit quantities and associated fees may vary from those reported herein. If the number of hours or units ultimately required exceed those assumed for purposes of this proposal, they will be invoiced at the hourly or unit rates shown in the attached tabulation. If services are ultimately required that have not been identified or described herein, they will be invoiced in accordance with our current Schedule of Charges. Prior to exceeding our estimated fees, we will update you regarding the progress of our work. Fees associated with additional services will be summarized in a Change Order and submitted to you for review and authorization. This proposal was developed with the understanding that the scope of services defined herein will be required and requested during our normal work hours of 7:00 am to 4:00 pm, Monday through Friday. Services that we are asked to provide to meet the project requirements or a contractor's construction schedule outside our normal work hours will be invoiced using an overtime rate factor. The factor for services provided outside our normal work hours or on Saturday will be 1.25 times the normal hourly rate for the service provided. The factor for services provided on Sunday or legal holidays will be 1.5 times the normal hourly rate far the service provided. General Remarks We will be happy to meet with you to discuss our proposed scope of services further and clarify the various scope components. City of Columbia Heights Proposal BL-10-06870 June 11, 2010 Page 4 We appreciate the opportunity to present this proposal to you. It is provided in duplicate so the original can be retained for your records and the copy can be signed and returned to us. Please return the signed copy in its entirety. The proposed fee is based on the scope of services described and the assumptions that our services will be authorized within 30 days and that others will not delay us beyond our proposed schedule. We include the Braun Intertec General Conditions, which provide additional terms and are a part of our agreement. To have questions answered or schedule a time to meet and discuss our approach to this project further, please call Andrew Valerius at 952-995-2242. Sincerely, BRAUN INTERTEC CORPORATION .~ ~~ Andrew M. Valerius Transportation Project Manger Cam// " _ ~`,.~-i~ r'' __-'=-%:~ ~„ ~/-v---_~ '~ Matthew P. Ruble, PE Principal Engineer Attachments: Table 1. Estimated Costs General Conditions - CMT (6/15J06} The proposal is accepted, and you are authorized to proceed. City of Columbia Heights AuthorizeF' ~ p .. 6.w...... P Authorizer's Signature Walt Fehst Authorizer's Name (please print or type) City Manager Authorizer's Title ~,.~ 15 ~ a~ , a IJate Braun lntertec Corporation Clie„t: City of Columbia Heights Project: 2010 Street I~~zprove~nents, Coleu~iiha Heights, MN Braun Intertec Proposal #: BL-10-06870 Prepm~ed: 6/11/2010 Phase Total Construction Materials Testing Soil Observations & Testing 2,047.00 Concrete Observations & Testing $84.00 Pavement Observations & Testing 5,434.00 Engineering & Project Management 840.00 Phase Total: 9,205.00 Estimated Project Total: 9,205.00 Braun Intertec Corporation Cliexxt: City of Columbia Heights Project : 2010 Street In~p~rovenaents, Cvlzsmiba Heights, MN Braun Intertec Proposal No.; BL-1 D-06870 Quantity: Units: Prepared: Unit Price: 6/11/2010 Extension: Construction Materials Testing Soil Observations & Testing Compaction "Testing, Sand Cones 21.00 1-lours 57.00 1,197.00 6.00 Trips at 3. SO Hoan~s per Trip Sieve analysis through No. 200 Sieve (ASTM C 136, D 1 140 or C 117) 4.00 'Pests 1 10.00 440.00 Proctor Test (ASTM D 698 or ASTM D 1557) 2.00 'tests 130.00 260.00 Trip charge 6.00 Trips 25.00 150.00 Soil Observations & Testing Total: 2,047.00 Concrete Observations & Testing Concrete Testing 8.00 1.lours 57.00 456.00 Sidewalks & Medr"an 1. t10 Trip al 3.00 Hu2n-s per Trip Driveway Aprrons 1.00 Trip at 2.00 Hours per Trip Cz~n^b & Gutter /.00 Trip at 3.00 Ifozn"sl~~er Trip Concrete Cylinder Pick up 2.00 Hours 57.00 1 14.00 2.110 Trips at l.00 /~/our per Trip Compressive strength of 4 x 8" concrete cylinders (ASTM C 39), per unit 9.00 "hosts 21.00 189.00 Sidewalh~s & Median 1.00 Set of 3.00 Cvlinder-s/5'et Driverovay.4pravs 1.(10 Set of 3.00 Cylinders/Set Cure & Gnttei° L0(1 Set qJ 3.00 Cylinders/Set Trip charge 5.00 'T'rips 25.00 125.00 Concrete Observations & Testing Total: 884.00 Pavement Observations & Testing Sample pick-up 8.00 Hours 57.00 456.00 Bituminous Coring 8.00 Hour 158.00 1,264.00 2.00 Trips at 4.00 Koui"s per Trip Rice specific gravity (ASTM D 2041) 8.00 Tests 68.00 544.00 Asphalt Content (ASTTM D 2172/6307) 8.00 'tests 129.00 1,032.00 Extracted aggregate gradation (ASTM D 5444} 8.00 Tests 89.00 712.00 Marshall density testing, triple specimen (AAS23 T0 T245} 8.00 Tests 104.00 832.00 Bit wear and patch material, per core 8.00 Cores 43.00 344.00 `T'rip charge 10.00 `T'rips 25.00 250.00 Paven~cnt Observations ~ Testing `Total: 5,434.00 Engineering & Project Management Project Manager 7.00 Hours 90.00 630.00 Senior Project Mar7ager I.OU Hour 120.00 120.00 Project Assistant 1.50 Hours 60.00 90.00 Engineering & Project Management Total: 840.00 Construction Materials Testing Total: 9,205.00 Estimated Project Total: 9,205.00