Teton Pass remains closed, interim detour is under construction

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Posted at 3:56 PM, Jun 07, 2024

UPDATE: Crews with Evans Construction and WYDOT Teton County are working around the clock on a temporary detour along the Teton Pass.

Wydot continues work on detour
WYDOT and Evans Construction continue to work on a detour route along the Teton Pass. Photo: WYDOT

WYDOT says the detour is being built along the inside curve of the highway. In the meantime, geologists have continued drilling and studying the slide area.

WYDOT reminds that Yellowstone National Park, Grand Teton National Park, and the Teton Valley are still open to tourists. The department urges you plan ahead if your route is impacted by the closure.

The Wyoming Department of Transportation is working with Evans Construction to build a detour along the Teton Pass. Photo: WYDOT

UPDATE: WYDOT Teton County crews continue to work on a detour to open Teton Pass up to traffic.

The crews are hopeful that the interim detour will be in place within two weeks, weather permitting.

Teton Pass is a vital highway for commuters as the busiest two-lane highway in Wyoming.

WYDOT is continuing to work closely with the US Forest Service and other agencies to secure the area and determine a long term solution to the collapsed roadway.

WYDOT geologists and engineers have confirmed that they are confident in their ability to build a safe temporary detour around the landslide, which they expect to open in a few weeks.

According to WYDOT, law enforcement and maintenance crews began investigating the roadway after a motorcycle accident on June 6, the driver was not seriously injured.

The road was temporarily repaired with a dura patch and was reopened, but on June 7, maintenance crews responding to a nearby mudslide realized that the ground had continued to move at milepost 12.8.

Later that night, the roadway collapsed.

Wyoming Governor Mark Gordon released an emergency declaration following the collapse at milepost 12.8.

“We are closely monitoring this ongoing situation, and Wyoming Department of Transportation personnel are working diligently to develop a long-term solution to rebuild this critical roadway,” Governor Gordon said. “I recognize the significant impacts this closure has to Teton County residents, regional commuters and the local economy.”

Teton Pass is a vital highway for commuters as the busiest two-lane highway in Wyoming.

Teton Pass Road Collapse

Jackson Hole has announced that they will continue to welcome visitors through alternative paths during the closure. To get to the area, they suggest taking HWY 26 and HWY 89 via the Snake River Canyon.

Travelers are encouraged to stay up to date with the latest road information and obey all roadside signs and traffic control devices in the area.

The roadway through Teton Pass is still closed following a catastrophic landslide that only escalated over the weekend. Now, WYDOT staff are working to develop a long-term solution to rebuild the roadway.

Wyoming Governor Mark Gordon shared a video of the road as it continues to collapse via Facebook. He recently met with WYDOT and the Wyoming Office of Homeland Security to develop a response.

If you're planning to drive through Teton Pass anytime soon, make sure to check the road conditions and watch for closures and detours.

The roadway at milepost 12.8 was damaged due to a landslide on June 6 and on June 8, the road catastrophically failed. No crews were hurt in the process and no equipment was damaged, but a long-term closure is expected, according to the Wyoming Department of Transportation.

”We understand this highway is a lifeline for commuters, deliveries, medical care access and tourism, especially with limited alternatives and the summer season upon us," WYDOT Director Darin Westby said. "WYDOT engineers, surveyors and geologists mobilized quickly to try to maintain highway viability as long as possible, but catastrophic failure could not be avoided. WYDOT remains on site decisively engaged on fixing the road and restoring connectivity to the Teton Valley."

WYDOT, with help from the Idaho Transportation Department, is working to repair the pass, but drivers and tourists currently must detour 30 to 75 minutes to access Jackson Hole through US-89 toward Hoback Junction.

UPDATE: Oftedal Construction has provided another large piece of equipment to the site at milepost 12.8 on WYO 22. The piece of equipment is called a "sheepsfoot" and is one of the most common types of compaction equipment. This is to help compact roads and foundations for the site. The crew has currently been using a smaller version of this sheepsfoot, but now having this larger one will help cover more ground.