Stabilizing Highway 151/61 Bridge Approach in Dubuque, IA

Project Background

Noah with Jasper Construction reached out to Concrete PolyFix to address a void fill issue on Highway 151/61 in Dubuque, Iowa. The problem involved a significant void beneath a bridge approach slab that posed a risk to long-term stability.

Scope of Work

Our task was to stabilize the affected slab by filling the voids underneath and preventing further settlement or structural compromise.

Challenges

While this project did not present major technical challenges, it stands out as a great example of how a simple, efficient solution can deliver lasting results.

Solutions

The fix was straightforward — drill through the slab and inject polyurethane foam beneath it to fill the void and stabilize the structure. Considering the heavy traffic volume on this highway, addressing the issue early prevented future failure and avoided the costly and time-consuming alternative of full slab replacement and highway closure.

Results

Our team drilled strategic injection points and used our IDOT-approved four lb foam mix, which expands with a two-foot radius coverage. The foam successfully filled the void and stabilized the slab. The process was quick, efficient, and minimally disruptive to traffic.

Conclusion

Sometimes, the simplest solutions are the most effective. In this case, a precise polyurethane foam injection was all it took to restore stability and prevent future issues on a heavily traveled stretch of road.

Facing voids beneath critical infrastructure? Concrete PolyFix delivers fast, non-invasive stabilization solutions that keep traffic flowing and budgets intact. Reach out today to schedule a site evaluation or learn more about our IDOT-approved foam injection services.