Reso 2021-3217 - Laserfiche WebLink

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ark `�yx f`4, 4�r `'rP uFF Lot, sW�+ hap City of Sunny Isles Beach 18070 Collins Avenue Sunny Isles Beach, Florida 33160 (305) 947-0606 City Hall (305) 949-3113 Fax MEMORANDUM TO: Honorable Mayor and City Commissioners VIA: Christopher J. Russo, City Manager FROM: Richard Labinsky, City Engineer DATE: July 15, 2021 RE: Agreement with Perkins & Will Architects, Inc. for the Pedestrian Overpas Bridge at 18080 Collins Avenue RECOMMENDATION: Staff recommends approval of this Resolution. REASONS: Staff is seeking approval of the Agreement with Perkins & Will Architects, Inc. ("Consultant") fo additional architectural and engineering design services for the overpass bridge located at 18080 Collins Avenue ('Government Center Pedestrian Bridge"). The City entered into an Agreement on August 21, 2015, with the Consultant which was amendec seven (7) times, but which has subsequently expired. The City is requesting that the Consultant provide additional services for the Government Centei Pedestrian Bridge Project thru the use of their sub -consultants, Thornton Tomasetti and Kimley Horn, During the Florida Department of Transportation ('FDOT') review process, the reviewers expresses concern that without a specific drainage system for the roof, there is a chance of concentrations of rainwater draining onto the roadway underneath. The team agreed to study this through constructing a physical mock-up of a portion of the bridge and testing it for drainage. This proposal proved too cost prohibitive. As an alternative approach, we are proposing using a computer model to simulate the drainage process. Thornton Tomasetti proposes the use of Computational Fluid Dynamics to model a section of the bridge to investigate the impingement of rain on the surface of the pedestrian bridge, and the Item Number: 10.1 105