Construction on ID-55 Smiths Ferry project pauses for winter season

Both lanes of Idaho Highway 55 are now back open to traffic, as the Idaho Transportation Department’s Smiths Ferry project pauses for the winter.

This fall crews made steady progress, working to widen shoulders, add guard rail, and straighten ID-55 between Smiths Ferry and the Rainbow Bridge. The project team safely removed 39,500 cubic yards of rock from the canyon through 17 controlled blasts.

Work will resume in mid-March 2021, weather permitting. For more information on the project and to sign up for updates, visit