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University Ave RCB Storm Sewer Ext Pro DU~~E ~~~ MEMORANDUM July 12, 2006 TO: The Honorable Mayor and City Council Members FROM: Michael C. Van Milligen, City Manager SUBJECT: University Avenue Reconstruction (US 20 to University Avenue) STP-U-2100 (623) -- 70-31 Reinforced Concrete Box (RCB) Culvert Extension (Twin Box) City Engineer Gus Psihoyos is recommending the acceptance of the construction contract for the reinforced concrete box culvert extension of the University Avenue Reconstruction Project in the final contract amount of $1 ,248,555.21, which is a 10.6% decrease from the original contract in the amount of $1 ,396,624.11. I concur with the recommendation and respectfully request Mayor and City Council approval. (l1t! [~/1{\ Michael C. Van Milligen -- MCVM/jh Attachment cc: Barry Lindahl, Corporation Counsel Cindy Steinhauser, Assistant City Manager Gus Psihoyos, City Engineer D~~~E ~<!k-~ MEMORANDUM July 10, 2006 TO: FROM: Michael C. Van Milligen, City M~~ Gus Psihoyos, City Engineer ~ SUBJECT: University Avenue Reconstruction (US 20 to University Avenue) STP-U-2100 (623) - 70-31 Reinforced Concrete Box (RCB) Culvert Extension (Twin Box) INTRODUCTION The enclosed resolutions provide for the acceptance of the construction contract for the reinforced concrete box (RCB) culvert extension of the University Avenue Reconstruction Project. BACKGROUND The overall University Avenue Reconstruction Project (US 20 to University Avenue) is intended to contribute to the improved flow of traffic and to decrease intersection congestion along the US Highway 20 corridor in the western portion of the City. The installation of the reinforced concrete box culvert is the first construction phase of the project through which University Avenue is extended to the south to intersect with US Highway 20 across from Theisen's driveway. This initial phase included construction of a double-barrel, 12- by 12-foot box culvert and the grading of the embankment for the future street. Upon completion of this work, a follow-up construction phase will be necessary to provide the pavement, traffic signals and other work necessary to complete the project. DISCUSSION The reinforced concrete box (RCB) culvert extension of the University Avenue Reconstruction Project was completed by Tschiggfrie Excavating Co. of Dubuque, Iowa, in the final contract amount of $1,248,555.21, which is a 10.6% decrease from the original contract in the amount of $1 ,396,624.11. I recommend that the City Council accept the improvements and establish the final contract at $1,248,555.21. BUDGET IMPACT The project cost summary for the reinforced concrete box (RCB) culvert extension of the University Avenue Reconstruction Project is as follows: Total Project Cost (Phase 1) Bid Award $1,396,624.11 74,682.00 510,065.33 ~1.981.371.44 Final $1,248,555.21 o 510,065.33 $1.758.620.54 Construction Contract Contingency Construction Engineering & Inspection In April, 2005, the City Council approved a request for seeking additional funding from the Dubuque Metropolitan Area Transportation Study (DMATS) for the completion of Phase 3 of the University Avenue Extension of the US 20 Improvements Projects. This request was made because of increased project costs associated with environmental mitigation, property acquisition, wetland mitigation, and engineering fees. The request from DMATS for the STP funds was $904,127.65, with an additional $226,031.91 from City funds. The 20% City match of $226,031.91 would be funded by the postponement of the Center Grove/Cedar Cross Intersection Improvements (CIP 3001632) of $93,000 and Stoneman Road Storm Sewer Extension Project (CIP 7201664) of $97,500, with the balance of $35,531.91 from the annual appropriation for the Street Program (CIP 3001626). Therefore, the project will be funded from the Capital Improvement Project 3001254, University Avenue Extension to US 20, as follows: Surface Transportation Funds (STP) Street Construction Funds - City of Dubuque $ 3,372,127.65 843,031.91 Total Project Funding (All Phases) ~4.215.159.56 ACTION TO BE TAKEN The City Council is requested to adopt the attached resolutions accepting the improvement and establishing the final construction cost for the reinforced concrete box (RCB) culvert extension of the University Avenue Reconstruction Project. cc: Roger Walton, PE - Iowa DOT Dawn Lang, Budget Director Deron Muehring, Civil Engineer II David Ness, PE Todd Irwin, Engineering RESOLUTION NO. 313-06 ACCEPTING THE REINFORCED CONCRETE BOX (RCB) CULVERT EXTENSION OF THE UNIVERSITY AVENUE RECONSTRUCTION PROJECT Whereas, the contract for the reinforced concrete box (RCB) culvert extension of the University Avenue Reconstruction Project (the Project) has been completed and the City Manager has examined the work and filed a certificate stating that the Project has been completed according to the terms of the contract, plans and specifications and that the City Manager recommends that the Project be accepted. NOW THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF DUBUQUE, IOWA: Section 1. The recommendation of the City Manager is approved and the Project is hereby accepted. Section 2. The City Treasurer is hereby directed to pay to the contractor from the Surface Transportation Funds (STP) and the Street Construction Fund appropriation for the contract amount of $1,248,555.21 less any retained percentage provided for therein as provided in Iowa Code chapter 573, and to pay such retainage only in accordance with the provisions of Iowa Code chapter 573. Passed, approved and adopted this 17th day of July, 2006. Roy D. Buol, Mayor Attest: Jeanne F. Schneider, CMC, City Clerk RESOLUTION NO. 314-06 FINAL ESTIMATE Whereas, the construction contract for the reinforced concrete box (RCB) culvert extension of the University Avenue 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 $1,758,620.54 and the said amount shall be paid from the Surface Transportation Funds (STP) and the Street Construction Fund of the City of Dubuque, Iowa. Passed, approved and adopted this 17th day of July, 2006. Roy D. Buol, Mayor Attest: Jeanne F. Schneider, CMC, City Clerk ItemNoJ Plan I Unit Price II Quantity I 0/. Complete Description Unit Quantity Completed Total I by Cost 1 CLEARING AND GRUBBING ACRE 2 $6,175.00 2 $12,350.00 100% 2 EXCAVATION, CLASS 10, ROADWAY AND BORROW' CY 56,293 $5.80 56,293 $326,499.40 100% 3 EXCAVATION, CLASS 10, UNSUITABLE OR UNSTABLE CY 3,220 $3.65 MATERIAL . 3,220 $11,753.00 100% 4 TOPSOIL, FURNISH AND SPREAD. CY 0 $8.65 5 GRANULAR MATERiAl FOR BLANKET AND SUBDRAIN CY 280 $16.35 461 $7,537.35 165% 6 ADJUSTMENT OF FIXTURES. EACH 0 $490.00 7 GRANULAR SURFACING ON ROAD, CLASS A CRUSHED TON 2,700 $10.00 STONE 2,115.11 $21,15-1.10 78% 8 REMOVAL OF EXISTING STRUCTURES LUMP 1 $12,730.00 1 $12,730.00 100% 9 REMOVAlS, AS PER PlAN LUMP 1 $6,600.00 1 $6,600.00 100% 10 GRANUlAR BACKFILL TON 3,795 $9.70 3,795.00 $36,811.50 100% 11 EXCAVATION, CLASS 20 CY 1,100 $6.00 1,100 $6,600.00 100% 12 EXCAVATION, ClASS 22 CY 835 $18.50 835 $15,447.50 100% 13 STRUCTURAL CONCRETE (RCB CULVERT) . CY 1,230.8 $260.95 1,230.8 $321,177.26 100% 14 REINFORCING STEEL' LB 166,729 $0.65 166,729 $108,373.85 100% 15 APRONS, CONCRETE, 24 IN. DIA. EACH 1 $830.00 1 $830.00 100% 16 STORM SEWER UTILITY ACCESS, RA-50 EACH 2 $1,950.00 2 $3,900.00 100% 17 REMOVE STORM SEWER PIPE LESS THAN OR EQUAl LF 40 $11.60 TO 36 IN. 40 $464.00 100% 18 SEWER PIPE, DUCTILE IRON STORM, 24 IN DIA. LF 94 $74.00 94 $6,956.00 100% 19 SEWER PIPE, 20000 STORM, 24 IN. DIA LF 19 $38.70 19 $735.30 100% 20 ENGINEERING FABRIC .. SY 2,834 $2.55 2,833.90 $7,226.45 100% 21 REVETMENT, CLASS E TON 188 $16.00 199.1 $3,185.60 106% 22 REMOVAL OF SIDEWALK SY 7 $6.55 7 $45.85 100% 23 REMOVAl OF PAVED DRIVEWAY SY 78 $4.55 78 $354.90 100% 2. SAFETY CLOSURE EACH 1 $2,500.00 1 $2,500.00 100% 25 FIELD OFFICE EACH 1 $3,500.00 1 $3,SOO.00 100% 26 TRAFFIC SIGNALIZATION LUMP 1 $22,740.00 1 $22,740.00 100% 27 MOBILIZATION LUMP 1 $60,000.00 1 $60,000.00 100% 28 EXCAVATION, SOIL WITH ELEVATED LEAD CY 0 $58.35 CONCENTRATIONS . 29 INTAKE, CASTING AND GRATE ONLY EACH 1 $448.00 1 $448.00 100% 30 MULCHING ACRE 0.84 $350.00 1.6 $560.00 190% 31 SEEDING AND FERTILIZING (URBAN) ACRE 1.34 $1,500.00 1.68 $2,520.00 125% 32 SLOPE PROTECTION, WOOD EXCELSIOR MAT (RC-14) sa 581 $8.00 378.34 $3,026.72 65% 33 STABILIZING CROP - SEEDING AND FERTILIZING ACRE 0.84 $750.00 (URBAN) 0.71 $532.50 85% 34 WATERING FOR SOD, SPECIAL DITCH CONTROL, OR MGAL 233 $25.00 SLOPE PROTECTION 11.3 $282.50 5% 35 SILT FENCE LF 1,235 $1.70 2,495 $4,241.50 202% 36 REMOVAL OF SILT FENCE LF 1,235 $O.SO 37 CLEAN-OUT OF SILT FENCE LF 1,235 $O.SO City of Dubuque University Avenue Extension R.C.B. Culvert and Grading STP-U-2100(623)-70-31 Pay Estimate #: 8 Ending Date: 21-Apr-Q6 Final Payment HRG # 176290J02 Total Completed of Original Contract "ems $1,011,080.28 . Item eliminated from contract or original contract quantity reduced through Change Order. .. Completed quantity reduced from previOUS Pay Request due to error in measurement. Contract quantity reduced through Change Order. City of Dubuque University Avenue Extension R.C.B. Culvert and Grading STP-U-21 00(623)-70-31 Pay Estimate #: 8 Ending Date: 21-Apr-06 Final Payment Total Completed of Original Contract Items (from page 1) $1,011,080.28 8001 CERTIFIED PLANT INSPECTION CY 1,230.8 $3.60 1,230.8 $4,430,88 100% REMOVE SANITARY SEWER PIPE LESS THAN OR 8002 EQUAL TO 36 INCHES LF 184.0 $14.80 184 $2,723.20 100% 8003 TOPSOIL STRIP, SALVAGE, AND SPREAD CY 2,584.0 $6.75 2,584 $17,442.00 100% EXCAVATION AND PLACEMENT, SOIL WITH ELEVATED 8004 LEAD CONCENTRA lIONS CY 4,972.0 $47.28 4,972 $235,076.16 100% 8005 SUBDRAIN, LONGITUDINAL, 4 IN. DIA. LF 29.0 $8.50 29 $246.50 100% 8006 FLOWABlE MORTAR CY 21.6 $82.50 21.6 $1,782.00 100% 8007 (PRICE ADJUSTMENT) SLUMP TEST DEVIATION EA 1.0 $4,488.34 1 -$4,488.34 100% 8008 (PRICE ADJUSTMENT) AIR CONTENT TEST DEVIATION EA 1.0 $9,916.09 1 -$9,916.09 100% 8009 (PRICE ADJUSTMENT) FUEL ADJUSTMENT EA 1.0 $404.60 1 $404.60 100% 8010 (PRICE ADJUSTMENT) SLUMP TEST DEVIATION EA 1.0 $5,871.38 1 -$5,871.38 100% 8011 (PRICE ADJUSTMENT) AIR CONTENT TEST DEVIATION EA 1.0 $4,354.60 1 -$4,354.60 100% Total Completed of Change Orders $237,474.93 Summary of Request Original Contract Price Revised Contract Price Work Completed 10 Date Retainage (3%) Total Earned Less Retainage Previously Approved Pay Requests (list each) Pay Request #1 Pay Request #2 Pay Request #3 Pay Request #4 Pay Request #5 Pay Request #6 Pay Request #7 $1,396,624.11 $1,256,845.44 $1,248,555.21 $0.00 $1,248,555.21 $23,132.08 $142,550.66 $525,693.16 $311,597.61 $161,549.77 $29,951.89 $48,679.67 Total Previously Approved Pay Request $1,243,154.84 Amount Due This Request 1- Percent Contract Complete Percent of Time Used 100.0% 90.0% Prepared By: ~ Howard R. Green S/V/06 Date Reviewed By: j-f-Cb Date Reviewed By: s--/2-06 City of Dubuque Date