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Villa St. Retaining Wall FinalCITY OF DUBUQUE, IOWA MEMORANDUM June 11, 2001 TO: FROM: SUBJECT: The Honorable Mayor and City Council Members Michael C. Van Milligen, City Manager Villa Street Retaining Wall Reconstruction Project Public Works Director Mike Koch is recommending acceptance of the construction contract for the Villa Street Retaining Wall Reconstruction Project as completed by Portzen Construction in the final contract amount of $116,890.24. I concur with the recommendation and respectfully request Mayor and City Council approval. MCVM/jh Attach merit cc: Barry Lindahl, Corporation Counsel Cindy Steinhauser, Assistant City Manager Michael A. Koch, Public Works Director TO: FROM: SUBJECT: CITY OF DUBUQUE, IOWA MEMORANDUM June 8, 2001 Michael C. Van Milligen, City Manager Michael A. Koch, Public Works Director Villa Street Retaining Wall Reconstruction Project INTRODUCTION The enclosed resolutions provide for the acceptance of the construction contract for the Villa Street Retaining Wall Reconstruction Project. BACKGROUND Over the past several years, staff had monitored the deteriorating condition of the limestone retaining wall adjacent to Villa Street. In June of 2000, staff noticed an accelerated deterioration in the condition of the wall. As a result of significant movement at the top of the wall and in the interest of public safety, staff made the decision to knock down the retaining wall before it overturned and collapsed. The Villa Street retaining wall was then reconstructed with limestone block to match the remaining wall sections to the north and south and in conformance with the City's native historic bluffs and character of the neighborhood. The project also included storm sewer drainage improvements, constructing new curb and gutter and reconstruction of the intersection with asphalt pavement. The existing wall has limestone piers with cable guardrail, which extends the entire length of the wall top, excluding the wall reconstruction section. During the wall demolition, the pier caps could not be salvaged. Under a separate contract to be bid later this year, staff will prepare plans to reconstruct and replicate the pier caps and the installation of ornamental wall top railing which will extend the entire length of the wall top. DISCUSSION The Villa Street Retaining Wall Reconstruction Project has been completed by Portzen Construction of Dubuque, Iowa, in the final contract amount of $116,890.24, which is a 1.5% decrease from the original contract in the amount of $118,670.45. RECOMMENDATION I would recommend that the City Council accept the improvement and recommend that the final contract amount be established at $116,890.24. BUDGET IMPACT The project cost summary for the Villa Street Retaining Wall Reconstruction Project is as follows: Estimate Bid Final Construction Contract $ 82,500.00 $118,670.45 $116,890.24 Contingency 12,500.00 12,500.00 Engineering 9,500.00 9,500.00 5,308.56 Total Project Cost $104,500.00 $140,670.45 $122,198.80 There are sufficient funds available for the project in the Fiscal Year 2001 General Retaining Wall Repair budget in the amount of $233,690, leaving a balance of approximately $110,690 for future wall repair and reconstruction projects. ACTION TO BE TAKEN The City Council is requested to adopt the final resolutions accepting the improvement and establishing the final construction contract amount. Prepared by Robert D. Schiesl, Civil Engineer cc: Pauline Joyce, Administrative Services Manager Prepared by: Michael A. Koch, Enqineednq Division Address: 50 W. 13th Street. Dubuque, IA 52001-4864 RESOLUTION NO. 262-01 ACCEPTING IMPROVEMENT Whereas, the contract for the Villa Street Retaining Wail Reconstruction Project has been completed and the City Manager has examined the work and flied his certificate stating that the same has been completed according to the terms of the contract, plans an(: specifications and recommends its acceptance. NOW THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF DUBUQUE, IOWA: Section 1. That the recommendation of the City Manager be approved and that said improvement be and the same is hereby accepted. BE IT FURTHER RESOLVED that the City Treasurer be and he is hereby directed to pay to the contractor from the Fiscal Yea~ 2001 General Retaining Wall Repair Budget in amount equal to the amount of this contract, less any retained percentage provided for therein. Passed, approved and adopted this 18th day of June , 2001. Terrance M. Duggan, Mayor Attest: Jeanne F. Schneider, City Clerk Prepared by: Michael A. Koch, Enqineerin~_Division Address: 50 W. 13th Street; Dubuque, IA 52001-4884 RESOLUTION NO. 263-01 FINAL ESTIMATE Whereas, the contract for the Villa Street Retaining Wait Reconstruction Project has been completed and the City Engineer has submitted his final estimate showing the cost thereof including the cost of estimates, notices and inspection and all miscellaneous costs; NOW THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF DUBUQUE, IOWA: Section 1. That the cost of said improvement is hereby determined to be $122,198.80 and the said amount shall be paid from the Fiscal Year 2001 General Retaining Wall Repair Budget of the City of Dubuque, Iowa. Passed, approved and adopted this 18th day of June, 2001. Terrance M. Duggan, Mayor Attest: Jeanne F. Schneider, City Clerk ~/Jeanne F. Schneider, City Clerk City of Dubuque - Engineering Division Final Payment Form PAYMENT NO: COUNC1]. FINAL PROJECT NAME: VILLA STREET RETAINI2NG WALL RECONSTRUCTION PROJECT COI~FRACTOR: PORTZEN CONSTRUCTION BID ITEM U~WIT DATE: 14-May-01 CONTRACT AMOLrNT: $118,670.45 UNIT COST QUANTITY AMOUNT EARNED TO DATE TO DATE Mobilization & Demobilization LUMP SUM $750.00 1 $750.00 Excavation Wall, Unclassified HOUR $140.00 $0.00 Excavation WalI, Quarry Stone HOUR $195.00 6.5 $1,267.50 4 Back5II, Wall, 1" Clean Stone TONS $12.00 528.84 $6,346.08 Removal of Asphalt Pavement S.F. $2.00 3000 S6,000.00 Asphalt Sawcut L.F. $2.00 143 $286.00 Graded Stone Base TONS $8.75 288.88 $2,527.70 8 ACC B~nder Course - 2" Course TONS $78.50 55.38 $4,347.33 9 ACC Surface Course - 2" Course TONS $78.50 55.38 $4,347.33 10 Adjustment of Fixture ~n Asphalt Pavement EACH $250.00 2 S500.00 11 PCC Curb & Gutter, New Placement L.F. $10.00 245 $2.450.00 12 Remove and Replace PCC Curb &Cmtter L.F. $12.00 73.00 S876.00 13 StormSewer CatchBas~n, I01-B, Complete EACH $1,150.00 2 $2,300.00 14 Storm Sewer Pipe, 15" RCP L.F. $25.00 66:00 $I,650.00 15 Storm Sewer, Backfill, LLmestone TONS $7.75 27.24 $211.11 16 Storm Sewer, Bedding Stone, 1" Clean TONS $11.00 84.34 $927.74 17 Storm Sewer, PCC Manhole Side~val148", Complete L.F. $87.50 15.50 $1,356.25 18 Storm Sewer, PCC Manhole Base 48", Complete EACH $350.00 1 $350.00 19 Stma~ Sewer Manhole, Ring (Frame) and Cover, Complete EACH $250.00 1 $250.00 Neenah Frame No. R1642, Neenah Concave Grate No. P.2571C 20 Storm Sewer, PC Concrete Pad, Manhole Base C.Y. $325.00 1 $328.00 21 Sto~rnSewm'Pipe, I6"DIP, hastallationOnly LUMPSUM $250.00 1 $250.00 16" DIP, Materials To Be Provided By City 22 Mega Lug Retainer Glands, 16", Installation Only LUMP SUM $150.00 1 $150.00 16" Mega Lug, Materials To Be Provided By City 24 Seeding, FertiIfzkng & Mulching, Wail Toe S.F. $0.60 $0.00 25 SoddL~g, Wall Top S.F. $1.36 1485.00 $2,004.75 26 Filter Fabric S.F. $0.35 1419.00 $496.65 27 PC Concrete, Fili C.Y. $80.00 22.0 $1;760.00 28 Retaining WalI, L~mestone, Complete S.F. $42.00 1660.60 $69,745.20 29 Rip-Rap, Two-Man TON $25.00 4.99 $124.75 30 Traffic/Safety Control LUMP SUM $1,500.00 1 $1,500.00 ADD CHANGE ORDER ITEMS UNIT UNIT COST QUANTITY AMOUNT EARNED TO DATE TO DATE 31 Stone, Breaker Roclq 3" TON $8.75 55.93 $489.39 32 Storm Sewer, Rock Excavation 33 PCC Curb & Gun,r, M4 Concrete C.Y. $50.00 9.60 $480.00 LUMP SUM $150.00 1 S150.00 34 Backfill, Clay, Wall Bottom 35 Excavation, Street, Unclassified 36 Corrugated Pipe, 24", Utility Pole Sleeve, Complete C.Y. $9,00 45.00 S405.00 C.Y. $8,80 t08.00 $864.00 LUMP SUM $227.00 1 $227.00 37 Rip-Rap, Bedding Stone, 1" Clean TONS $11.00 5.86 $64.46 38 Temporary WalI Top Fence, Furnish &InstalI, Complete LUMP SUM $618.00 1 $616.00 TOTAL DUE CONTRACTOR: ] $116,890.24 TOTAL DUE CONTRACTOR: ENGINEERING: TOTAL CONSTRUCTION COST: $116,890.24 ] $5,308.56 ] $122,198.80 ] CERTIFICATE OF THE CITY MANAGER: con-est mount of I or equh-ed t plete the I hereby certify that the above statement shows in detail the ~t/~?F~ ~r. _ ~/~e t~c~plet~ Michael Van Milligen, City Manager City of Dubuque, Iowa Michael A. Koch, Public Works Director City of Dubuque, Iowa above improvement. CERTIFICATE OF ~ CONTRACTOR: The undersigned, contractor for the above improvement, does hereby accept the above "Total Due Contractor", as full settlement for all claims for said improvement.