Client: Michigan Department of Transportation (MDOT)

As part of a major infrastructure upgrade along I-75, this project involved the removal and replacement of four aging structures—two bridges over Goddard Road and two over the Sexton-Kilfoil Drain. The new structures (now designated B08, B09, S27-1 & S27-2 of 82191) were installed alongside the construction of a lightweight fill embankment and retaining walls connecting the spans.

Construction on a bridge

Clark Dietz played a critical role by leading the bridge design for the southbound I-75 bridge over the Sexton-Kilfoil Drain, conducting Bridge QC reviews on all structure plans, and completing the bridge load rating for the B09 bridge.

A highlight of this project was the use of carbon fiber composite cables (CFCC) as longitudinal prestressing strands in the massive 72-inch deep concrete bulb-tee beams. At 138 feet and 4 inches long, these were the largest and longest CFCC-utilizing beams to be implemented on a Michigan Department of Transportation (MDOT) project to date, marking a notable advancement in materials use and bridge design innovation.