U.S. 20/Wyoming 789 is closed through Wind River Canyon Tuesday night "for the safety of the traveling public" because of falling rocks, according to Wyoming Department of Transportation District Engineer Shelby Carlson of Basin.
WYDOT crews were working Tuesday evening to clear rock fall from the highway inside Wind River Canyon until nearly dark, but due to concerns for workers' safety, crews pulled out of the canyon and the highway was closed at each end of the canyon.
"We will assess conditions in the morning. Digital-message signs will be deployed to each end of Wind River Canyon to advise motorists of the rock fall hazard when the highway reopens," Carlson said.
This week's heavy rains and snow are causing the unstable slope conditions inside Wind River Canyon. Most of the current rock fall is about 8-10 miles south of Thermopolis in an area called Big Windy. Big Windy is the area where WYDOT placed a web camera several years ago that's visible at www.wyoroad.info.