25-Foot Sinkhole Closes Part of I-270 

A 25-foot wide sinkhole has closed part of southbound I-270 in Montgomery County.

The right shoulder and two right lanes of southbound 270 before I-370 will be shut down at least until Monday, the Montgomery County Police Department (MCPD) wrote Wednesday evening. 

There is currently no estimated time for lanes to reopen, the State Highway Administration (SHA) wrote in a release Thursday. The “large sinkhole” was in the right lane before Exit 9, according to a release from Maryland State Police. It was caused by a broken six-foot drainage pipe. 

Crews are assessing the failed corrugated drainage pipe and will begin work as soon as possible, SHA said.

“Drivers should seek alternate routes and expect delays,” MCPD wrote on Twitter. 

SHA advises drivers to use MD 355 as an alternative route until further notice.

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