R2017-88 Agreement with AECOM to Provide Design Services to Improve Mound Road - Spring Creek Bridge CP 2017-06

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Item Coversheet Page 1 of 2 Public Works DATE: 6/14/2017 MEMO: 2017-39 TO: Honorable Mayor Julie Moore Wolfe and City Council Members FROM: Tim Gleason,City Manager Richard G.Marley,P.E.,Public Works Director SUBJECT: Resolution Authorizing an Agreement with AECOM Technical Services,Inc.to Perform Bridge Design Services for Mound Road/Spring Creek West and Middle Bridges,City Project 2017-06 SUMMARY RECOMMENDATION: It is recommended that the City Council approve the attached Resolutions authorizing the Mayor to sign and the City Clerk to attest to the following items: 1. Resolution authorizing a professional engineering services agreement between the City of Decatur and AECOM Technical Services,Inc.,(AECOM)to perform bridge design services for the Mound Road/Spring Creek West and Middle bridges for a fee of$339,100. 2. Resolution appropriating$339,100 in State Motor Fuel Tax(MFT)funds to pay for the agreement with AECOM to perform bridge design services for the subject bridges. BACKGROUND: At the request of the City in early 2016,the Illinois Department of Transportation(IDOT)performed a rating inspection of the Mound Road/Spring Creek West Bridge. On March 24,2016,the Department issued a letter to the City lowering the rating of the bridge deck and superstructure to a"3"(Serious Condition)on a scale from 0-9(O=Required Closed,9=New). Acting on an additional request from the City,IDOT performed a rating inspection of the Mound Road/Spring Creek Middle Bridge earlier this year. On February 7,2017,IDOT issued a letter to the City lowering the rating of the bridge deck and superstructure to a "2"(Critical Condition)and ordered that the bridge be inspected every 12 months to ensure its continued safe condition. IDOT recommended that the City look to replace the decks and superstructures on both bridges in the near future. The bridge superstructures include the entire bridge structure above the pier tops,generally the driving service(deck)and the beams or girders supporting the driving surface. The City has secured$1.9 million in Federal Surface Transportation funding to cover 80%of the estimated$2/3 million construction cost to replace the deck and superstructure of both bridges in 2019. On March 8,2017,the Public Works Department issued a request for proposals and qualifications from area engineering firms to provide design services to replace the deck and superstructures for the Mound Road/Spring Creek(West)Bridge and Mound Road/Spring Creek(Middle)Bridge as shown on the attached location map. Proposals were received March 29,2017. Eight firms responded to the City's request and submitted formal statements of qualifications. Public Works Department staff conducted in-person interviews with three of the proposing firms and recommends AECOM Technical Services,Inc.as the firm best able to serve the City in performing the requested design services. Engineering Services Agreement The Design services are to prepare design drawings and IDOT and FHWA approvals to perform the bridge construction work in 2019 and will include the following services: 1. Perform topographic surveys of the two bridges. This work will also include gathering information on Spring Creek. 2. Prepare hydraulic reports for each bridge to identify any affect the structures may have on Spring Creek and determine if there are scour concerns with the structure footings. 3. Perform the National Bridge Inventory System(NBIS)inspections of each bridge during the construction and design period as required by IDOT. https:Hdecatur.novusagenda.com/AgendaWeb/CoverSheet.aspx?ItemID=1190 7/3/2017