A heavily traveled highway that links Boulder and Denver caved in and likely won’t reopen until Tuesday at the earliest, Colorado Department of Transportation officials said Monday.

A large crack appeared overnight Friday on U.S. 36 near Wadsworth Parkway in Broomfield. The crack extends 200 feet down the road and likely was caused by moist soil underneath, a CDOT news release said. Crews later found a “void” in the road base 150 to 200 feet long and 10 feet wide.

“We are looking at a pretty large slope failure on U.S. 36,” the CDOT’s chief engineer, Joshua Laipply, said during a news conference Saturday, 9News reports.

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Eastbound lanes were closed to traffic Monday because the damage worsened, requiring the road to be rebuilt, crews said.

CDOT was working on an interim route for eastbound travelers, seeking to open two lanes that will shift to westbound U.S. 36, allowing for travel in each direction. Alternate routes are encouraged, such as taking the Northwest Parkway toll road to Interstate 25 and Colorado 93 to Colorado 58, linking to Interstate 70. Read more on alternate routes.

Also Friday, Colorado 325 in Rifle had to be shut down after a sinkhole destroyed part of the highway. The northbound lanes were closed at Grass Valley Road. The sinkhole stretched 200 feet long and 8 feet wide.

Click here for the transportation department’s map for current road conditions.



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