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TO: Mayor Richard C. Irvin
FROM: Tim Weidner, P.E., Engineering Coordinator
DATE: November 18, 2019
SUBJECT:
A Resolution to authorize the Director of Purchasing to execute an agreement with Alfred Benesch & Company of 1230 East Diehl Road, Suite 109, Naperville, IL 60563 for the Rotary Plaza Pedestrian Bridge Removal and Walkway Reconstruction Final Plans in the amount of $60,200.00.
PURPOSE:
This Resolution will Authorize the Phase II Engineering Services Agreement to prepare Permits and Bid Documents including Plans, Specifications and Estimate of Cost for removal of the Rotary Plaza Pedestrian Bridge near Lot F and replace with a retaining wall and walkway.
BACKGROUND:
The Rotary Plaza Pedestrian Bridge consists of a single span weathering steel, symmetric ponytype truss with a timber deck carrying pedestrian traffic. The structure runs parallel to the Fox River and spans over the steep embankment of the east bank of the east channel.
Over the summer of 2019 the bridge was deteriorating to the point where it needed to be closed to pedestrian traffic.
DISCUSSION:
Alfred Benesch & Company (Benesch) is currently working on a number of projects for the City, including the 2019-2020 bridge inspection program. After the bridge was closed due to its condition, Benesch was asked to perform a bridge inspection of the Rotary Plaza Bridge while they were in town. In addition to the inspection they also provided a number of alternatives for rehabilitating the Rotary Plaza area and returning the riverwalk pedestrian walkway to a suitable state. The results were compiled in a Bridge Condition Report (BCR) which is attached as Exhibit 'A'.
Upon evaluating the project's needs, desires, constraints and per concurrence with the City, Benesch recommended that Alternative 3, constructing a retaining wall, be chosen. This alternative was presented to the Design Review Committee (DRC) on October 10, 2019 and approved.
At this time, the City is prepared to move f...
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