Traffic & Transportation

‘Catastrophic failure’ on Teton Pass road near Idaho border. No timeline for reopening

After a colossal landslide, Wyoming State Highway 22 has closed and will not be reopening for the foreseeable future.
After a colossal landslide, Wyoming State Highway 22 has closed and will not be reopening for the foreseeable future. Wyoming Department of Transportation

After two days with a mudslide and landslide, Wyoming State Highway 22 over Teton Pass has “catastrophically failed” and is expected to be closed for the long-term, according to the Wyoming Department of Transportation.

On Thursday, the road was temporarily closed after eight-inch cracks developed in the roadway at milepost 12.8.

Department crews and a contracted team from Evans Construction started working in the region to “construct a detour around the damage, but the landslide continued to move, taking out the whole road,” the department reports.

A driver’s view shows the Wyoming State Highway 22 failure at milepost 12.8 where the highway drops into an abyss.
A driver’s view shows the Wyoming State Highway 22 failure at milepost 12.8 where the highway drops into an abyss. Wyoming Department of Transportation

On Friday, due to “continued movement, the crews had been working to remove asphalt from the roadway in an effort to minimize the weight on the unstable ground and reduce the driving force pushing the movement,” according to the department.

They intended to reconfigure the road closer to the mountain “in shoe fly detour configuration,” prior to the roadway’s total failure.

No crew members were injured or equipment damaged in the landslide.

The Wyoming Department of Transportation also reported Saturday morning that Friday’s “mudslide at milepost 15 on Teton Pass, has breached the roadway with mud and debris, overwhelming the channeled drainage ditch and culvert.”

Dispatched crews, with assistance from the Idaho Department of Transportation, continued to remove mud and debris Saturday morning at that location, the department reported.

A massive landslide has taken out Wyoming Highway 22 at mile marker 12.8, leading to a long-term closure.
A massive landslide has taken out Wyoming Highway 22 at mile marker 12.8, leading to a long-term closure. Wyoming Department of Transportation

This story was originally published June 8, 2024 at 4:59 PM.

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