The Idaho Transportation Department planned to construct a 6.5 mile new and improved road alignment of U.S. Route 95 from Thorn Creek in Moscow, Idaho. This would shift the highway less than a mile to the east and expand it from two lanes to four, enhancing safety for all users. The new route improves safety by utilizing flatter grades, fewer approaches, and less severe curves.
McCallum Rock Drilling was subcontracted to provide drilling and blasting services of over one million yards of rock excavation in cuts upwards of 80 feet in depth. Side slopes in the rock excavation area were laid back on a 1:1 slope.