CTH D Bridge Replacement

Trempealeau County, WI | Transportation

Overview

ISG is working with Trempealeau County to replace its aging and structurally deficient bridge with a new bridge that reduces maintenance while providing a long-term solution.


Opportunity

With a bridge that was no longer structurally sound, Trempealeau County needed a design partner that could navigate through local and state regulations while delivering a safe and long-lasting bridge design.

Solution

The County needed to replace this structurally deficient steel deck, girder bridge on timber abutments. ISG is currently working with the County on this project, which follows the Wisconsin Department of Transportation (WisDOT) Facilities Development Process through the Local Bridge Program, a program with the same process as the STP-Urban Development process. Through coordination and cooperation with the designer, Trempealeau County, the Wisconsin Department of Natural Resources, and WisDOT, the road will be raised and fewer piers will be used to allow for an economical design with minimal stream and environmental impact. The bridge will be replaced with a multi-span, reinforced concrete, slab bridge providing Trempealeau County with a low-maintenance bridge designed to last 75-100 years. The funding program for the bridge utilizes federal and state sources to cover 80% of the project costs. The bridge is scheduled to be completed in 2020.


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