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Home My WebLink About6.f. Payment #6 and Final - Downtown Regional Pond, City Project #420 ROSEN4OLII EXECUTIVE SUMMARY CITY COUNCIL City Council Meeting: November 17, 2009 AGENDA ITEM: Payment #6 and Final Downtown AGENDA SECTION: Regional Pond, City Project #420 Consent PREPARED BY: Andrew J. Brotzler, PE, Director of Pub i AGENDA NO. tef Works /City Engineer ATTACHMENTS: Letter; Final Pay Voucher; Map APPROVED BY: RECOMMENDED ACTION: Motion to Approve Payment 6 and Final for the Downtown Regional Pond, City Project #420, to Stocker Excavating and Accepting it for Perpetual Maintenance BACKGROUND: This item is on the agenda to request Payment #6 and Final to Stocker Excavating for the Downtown Regional Pond, City Project #420. The Downtown Regional Pond project included the construction of a stormwater treatment pond and restoration work at Erickson Pond located within Central Park. This pond, which is also a preserved wetland, is the primary receiving water body for the stormwater system from the downtown area. Downtown redevelopment triggered the need for improvements at Erickson Pond to meet current regulations. The primary regulation to be met was the treatment of surface water run -off prior to discharging to a wetland. The final construction amount of $402,216.76 is 13% above the revised contract amount of $356,095.44. Items that contributed to the increased construction cost are discussed detailed in the attached letter to the City Engineer. SUMMARY: Staff recommends that Council approve Payment #6 and final for the project, and accept the project for perpetual maintenance subject to the following conditions. 1. Satisfactorily showing that the contractor has complied with the provisions of Minnesota Statutes 290.92 requiring withholding state income tax. 2. Evidence in the form of an affidavit that all claims against the contractor by reasons of the contract have been fully paid or satisfactorily secured. 3. Consent of Surety to Final Payment certification from the contractor's surety. 4. Two -year maintenance bond. G: \ENGPROJ \420 \111709 CC Payment6- Final.doc WSB Associates, Inc Infrastructure Engineering is Planning Construction 701 Xenia Avenue South Suite 300 Minneapolis, MN 55416 Tel: 763 -541 -4800 Fax: 763 541 -1700 November 11, 2009 Mr. Andy Brotzler, PE City Engineer City of Rosemount 2875 145 Street West Rosemount, MN 55068 Re: Summary of Quantities Erickson Pond Water Quality Improvement and Habitat Enhancement Project City of Rosemount Project No. 420 WSB Project No. 1668 -37 Dear Mr. Brotzler: Please find enclosed the final Construction Pay Voucher No. 6 in the amount of $20,110.84 for the above referenced project. This voucher represents payment for the 5% retainage. All punch list items have been completed. The final contract amount is $402,216.76. This compares to the original contract amount of $356,095.44. The increased amount reflects additional work in three main areas: Item 18: Modular Block Retaining Wall during the construction of the retaining walls, it was observed that additional wall height should be adjusted in selected areas to better match the surrounding ground elevations. Based on the field modifications, the wall quantity was increased by 775 square feet. This amounted to additional costs of $15,577.50. Item 35: Random Riprap, Class III once the grading was completed at the 72 -inch RCP outfall in the south end of the pond, it was requested that the in -place riprap be supplemented with additional riprap. This riprap was grouted to provide added protection from erosion. The additional cost for this work was $34,171.61. Item 45: Clean Root Cutting during clearing and grubbing work for the project, it was determined to save significant trees rather than full clear cutting for the trail and retaining wall installation. In order to reduce the impact to trees from the original plan, additional root cutting was necessary. This amounted to additional costs of $12,985.00. These additional costs are partially offset by other contract items coming in with a final quantity less than estimated quantity. As you may know, the contract amount is based on estimated quantities that are subject to change based on changes in conditions in the field. Minneapolis St. Cloud Equal Opportunity Employer K: 01668- 37 Admi Construction Admin\Pay Vouchers \LTR FINAL VO6 CTY-a brotzla -091109 .docx Mr. Andy Brotzler November 11, 2009 Page 2 During the development of the preliminary estimates for the project, the original estimated cost was $580,000 of which $500,000 of grant funding has been awarded. While the final contract amount is higher than the original contract amount award, the final contract cost is within the previously identified project funding. We hereby recommend that the City of Rosemount approve Construction Pay Voucher No. 6 for Stocker Excavating, Inc. pending submittal of the original Consent of Surety to Final Payment and the two -year maintenance bond. If you have any questions or comments regarding the enclosed, please contact me at 763- 287 -7164. Pete Willenbring will be at the November 17, 2009 City Council meeting to answer any questions the Council may have regarding these items. Thank you. Sincerely, WSB Associates, Inc. Steven G. Gurney, PE Project Manager Enclosures cc: Cindy Dorniden, City of Rosemount Troy Stocker, Stocker Excavating, Inc. tsf K:\01668- 37\Admin \Construction Admin\Pay Vouchers \LTR FINAL VO 6 CTY-a brotxler-091109 .docx WSB Associates, Infrastructure 1 Engineering 1 Planning 1 Construction 701 Xenia Avenue South Suite 300 November 9, 2009 Minneapolis, MN 55416 Tel:763- 541 -4800 Fax: 763 -541 -1700 Honorable Mayor and City Council City of Rosemount 2875 145th Street W. Rosemount, MN 55068 ATTN: Cindy Domiden Re: Construction Pay Voucher No. 6 (Final) Erickson Pond Water Quality Improvement and Habitat Enhancement Project City of Rosemount Project No. 420 WSB Project No. 1668 -37 Dear Mayor and Council Members: Please find enclosed the final Construction Pay Voucher No. 6 (Final) for the above- referenced project in the amount of $20,110.84. We recommend final payment subject to receipt of the following items: 1. Satisfactory showing that the contractor has complied with the provisions of Minnesota Statutes 290.92 requiring withholding state income tax. 2. Evidence in the form of an affidavit that all claims against the contractor by reasons of the contract have been fully paid or satisfactorily secured. 3. Consent of Surety to Final Payment certification from the contractor's surety. 4.. Two -year maintenance bond. Please make payment in this amount to Stocker Excavating, Inc. at your earliest convenience. Sincerely, WSB Associates, Inc. G Steven G. Gurney, PE Project Manager Enclosures cc: i�+t,4City of Rosemount Troy Stocker, Stocker Excavating, Inc. tsf Minneapolis 1 St Cloud Equal Opportunity Employer K.101668-371Admin1Cawrwrion Admin1Pay VouchmILTR V06f.d CTr10276Ddoe Owner: City of Rosemount Date: 10/27/2009 2875 145th Street West (,41_, S Rosemount, MN 55068 -4941 For Period: 10/1/2009 to 10/27/2009 Request No.: 6 FINAL Contractor: Stocker Excavating, Inc. 12336 Boone Avenue Associates, Inc. Savage, MN 55378 Pay Voucher RSMT Downtown Regional Ponding Improvements Client Contract No.: 420 Project No.: 01668 -37 Client Project No.: 420 Project Summary 1 Original Contract Amount $356,095.44 2 Contract Changes Addition $0.00 3 Contract Changes Deduction $0.00 4 Revised Contract Amount $356,095.44 5 Value Completed to Date $402,216.76 6 Material on Hand $0.00 7 Amount Earned $402,216.76 8 Less Retainage $0.00 9 Subtotal $402,216.76 10 Less Amount Paid Previously $382,105.92 11 Liquidated Damages $0.00 12 AMOUNT DUE THIS PAY VOUCHER NO. 6 FINAL $20,110.84 I HEREBY CERTIFY THAT A FINAL EXAMINATION HAS BEEN MADE OF THE ABOVE NOTED CONTRACT, THAT THE CONTRACT HAS BEEN COMPLETED, THAT THE ENTIRE AMOUNT OF WORK SHOWN IN THE FINAL VOUCHER HAS BEEN PERFORMED AND THE TOTAL VALUE OF THE WORK PERFORMED IN ACCORDANCE WITH, AND PURSUANT TO, THE TERMS OF THE CONTRACT IS AS SHOWN IN THIS FINAL VOUCHER. Recommended for Approval by: Construction Observer: WSB Associates, Inc. Approved by Contractor: Approved by Owner: Stocker Excavating, Inc. City of Rosemount Specified Contract Completion Date: Date: 11/28/2008 Comment: 1 of 4 R ROSEMOU Downtown Regional Pond PUBLIC WORKS DEPARTMENT %o 00\`',"„,„, °a o f Brway jI 1 •f Park MM E Q� CONNEMARA Lte C tl 137TH ST Q Q Q J V 0 0 2 U 138TH STW VAN Schwarz Pond PI 1 38TH ST WI wP r--------- 0 S T CO SCHWARZ r 1 39TH STW Q Q W W W POND m z a a a z w A t hwarz Pond Park 00 z a g BARN 0 140TH STW G h Cr EY BELM `r�� 1- W rolls m i W )ods 142ND ST c i- m Z B L.FA ark 0 Erickson 1 Park r' J� v 47 X rci 143R STW r Q 14 RD ST V I a Q O UPPER 143RD Z Central I 45TH BEECH ST ti harlie•s Park t a R /45TH ST W gir W W R 146TH ST W Q li P r a V 146T1- T Q r L. 147TH W o H STW L. R LOWER 147TH STW t iks 4 I e BI SC a 147TH STW a w 6�- .MF�E� s Q Q BOYSENBERRY C 0- 0. z Z�� z H ST W U. 147TH ST W —J Q o f i i i 0 BOSTON BOISE 148TH ST W w 27 IR CIR x W 4 Q Q a In H ST a) l- w v 148TH ST p tii a z N i ST l a U. 1 STW c I w BR ?1 CT 49TH m H ST LI L. 150TH STW y N W +E 0 430 860 1,720 2,580 3,440 S i Feet T: /GIS/City /Maps /Departmental Maps/Engineering /Chris/Downtown Pond Locate September 2008