ITD making changes to ensure detour routes for the Teton Pass stay open

Cars traveling along Idaho State Highway 31, part of the detour route while Wyoming Highway 22 over Teton Pass is closed.

Idaho Transportation Department maintenance workers from St. Anthony, Driggs, and Ashton have switched schedules to provide around-the-clock coverage for detours established after the closure of Wyoming State Highway 22 over Teton Pass on June 8.

Drivers are being routed to Idaho State Highway 31 over Pine Creek Pass to Swan Valley, U.S. Highway 26 to Alpine, and US-89 toward Hoback Junction. Crews start the day at 3 a.m. ahead of most commuter traffic. Already these efforts have taken care of roadkill, found and moved an overturned car, and alerted farmers of escaped livestock on the road.

“We’re trying to keep the road and the public safe as best we can with increased traffic,” Operations Foreman Lucas Richins said. “We need people to be on their toes, watching for all the signs, driving patiently and planning extra time to travel due to the congestion.”

Digital message boards are in place at all intersections and areas needed in advance of the detour route. All drivers should be on the lookout for these digital signs that will be updated frequently.

In addition, ITD is staying in coordination with Idaho State Police to help minimize response times to accidents. Drivers should be aware that speed trailers and increased ISP patrols will be in effect.

Guardrail repair and fiber installation efforts along SH-31 have been completed or paused to eliminate any traffic delays.

“We’re doing everything we can to try and make this situation as good as it can be,” said Bryan Young, the acting District Engineer.

Stay up to date on status of the Teton Pass detour routes by visiting, calling 5-1-1 or downloading the app. Travelers can also refer to the Wyoming Department of Transportation Media Kit for daily updates.