Paving on US-12 in north-central Idaho to start next week

Fifty miles of US-12 will be paved this summer to improve mobility and safety in the area, with work set to start on the first section during the week of July 9.

The 27-mile section between Tumble Creek and Saddle Camp Road will be resurfaced first, followed by the 23-mile section between Warm Springs and the Idaho-Montana border, which is expected to begin in August.

The highway will be reduced to one lane during both paving projects, with flaggers and pilot cars in place to guide traffic through work zones. A daytime shuttle service will be provided to safely transport bicyclists through the longer work zones. Once a schedule is finalized, it will be published on the project website and the corridor newsletter.

Paving operations are anticipated to take place at night to minimize impacts to the traveling public, but travelers should expect flagging operations and delays during the day.

During construction, travelers on US-12 between Lowell and the border should plan for delays up to two hours, as other projects to replace Fish Creek and Maggie Creek bridges are already underway. Due to the remote location and length of the work zones, travelers are also advised to fill up their gas tanks before driving through construction.

Construction for all US-12 projects will conclude this summer, bringing nearly $17 million of much-needed infrastructure and safety improvements.

To learn more and to subscribe to updates, visit For immediate construction impacts on this and other routes, visit