In undertaking three rehabilitation projects on I-43, the Rock Freeway, in Waukesha County, WisDOT leaned on Kapur to prepare preliminary and final construction documents for a total of 10 bridge rehabilitations, one multi-span prestressed concrete girder bridge reconstruction, and two bridge replacement studies.
The first pair of bridge rehabilitations – the 124th Street and 116th Street bridges over I-43 – involved the design of thin polymer overlays and the repair and rehabilitation of concrete and steel elements, as well as developing a list of structural deficiencies, an estimate quantile of the deficiencies, and a construction cost estimate for each bridge.
The following six bridge rehabilitations included prestressed concrete girder bridges with mechanically stabilized earth (MSE) walls and steel plate girders, while the last two were three-span steel bridge rehabilitations that involved repairs to the concrete and steel elements, a thin polymer overlay, minor rehabilitations like girder painting, preliminary plans for an MSE-type wall retaining structure, and all the necessary environmental documents and construction staging.
As for the studies, both involved developing a cost feasibility comparison between the rehabilitation and replacement of the I-43 overpass at CTH U using a three-span steel plate girder bridge.
