R2021-50 Resolution Concurring with the Illinois Department of Transportation in the Award of a Contract to Improve the Center Street Bridge over Stevens Creek, Structure Number: 058-3061 Section Number 19-00904-00-BR City Project 2019-04

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4/1/2021 Item Coversheet in Public Works DATE: 3/24/2021 MEMO: 2021-31 TO: Honorable Mayor Julie Moore Wolfe and City Council Members FROM: Scot Wrighton,City Manager Matthew C.Newell,P.E.,Public Works Director SUBJECT: Resolution Concurring with the Illinois Department of Transportation in the Award of a Contract to Improve the Center Street Bridge over Stevens Creek, Section Number 19-00904-00-BR City Project 2019-04 SUMMARY RECOMMENDATION: It is recommended that the City Council authorize the Mayor to sign,and the City Clerk to attest,to a resolution authorizing the City to concur with the Illinois Department of Transportation in awarding a contract to Sangamo Construction Company to improve the Center Street Bridge over Stevens Creek at their low bid of$1,595,148.92. BACKGROUND: On February 1,2021,the City Council authorized a City-State Joint Agreement to replace the Center Street bridge over Stevens Creek for a total estimated cost of$1.3 million. Because the project is utilizing Federal funds,the work will be completed under a State contract with the City providing the daily project inspection under IDOT supervision. IDOT recently opened bids for the project at their March 5 statewide bid letting. The City has secured Federal funding of up to$1,280,000 as an 80/20 split for a total$1.6 million project to replace the Center Street bridge. The Current City budget anticipated a cost of$1.6 million and allocated$320,000 in Rebuild Illinois funds for the project. Letting Results The project scope and specifications were prepared by WHKS&Co. Engineering. The project was advertised under State letting on January 29,2021,and bids were opened by the Illinois Department of Transportation on March 5,2021. The results of the letting are as follows: Bidder Total Bid Price Compared to Engineer's Est. Over(Under) Sangamo Construction Company $1,595,148.92 18.79% Plocher Construction Company $1,674,000.00 24.66% White Construction LLC $1,691,689.41 25.98% Stark Excavating,Inc. $1,766,605.04 31.55% [Engineer's Estimate $1,342,868.50 ------ The bids all exceeded the Engineer's Estimate by a significant margin.When bids exceed 10%of the estimate,IDOT reviews the bids received along with the estimate to determine if there were bid items that were estimated too low compared to recent bid prices. While IDOT will not allow a review of the specific bid items,they have discussed the project with City staff and the City's design engineer,WHKS. WHKS has held discussions with IDOT and provided their recommendation on the attached Bid Analysis and Recommendations letter. They note that according to IDOT,there were bid items that have shown sharp increases in recent bids that cannot be easily forecast by reviewing past bids. For this reason,IDOT has determined that the bids received, although higher than anticipated,are reasonable and that it is not likely that better prices will be secured by rejecting them and rebidding the project. Rather it is more likely that bid prices will only increase and cause the bridge to be closed over the next https://decatur.novusagenda.com/AgendaWeb/CoverSheet.aspx?ItemID=3331 1/3