Ketchum-Challis Highway Scaling
Large-scale rock scaling and mesh installation along 3 miles of Highway 75 through the Sawtooth Mountains.
Project Stats
Services Used
The Problem
Highway 75 passes through steep granite terrain in the Sawtooth Mountains with numerous rockfall source zones. Historical scaling had not been performed in over 15 years, and several near-miss incidents prompted ITD to commission a comprehensive mitigation project.
Our Approach
Our rope access teams performed systematic scaling across 14 identified hazard zones, removing over 1,500 tons of loose rock. High-tensile mesh was installed on the most active zones, and catchment areas were improved with new concrete barriers.
The Outcome
Rockfall incidents on this corridor have decreased by 85% since project completion. The improved catchment areas have successfully contained all post-construction rockfall events.
Our Work in Action
Client Testimonials
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