2026-07-06 19:34:35 Sinkhole causes highway closure in Anne Arundel Co. – NEW WTOP Skip to main content

Sinkhole causes highway closure in Anne Arundel Co.

WASHINGTON — A section of Maryland Route 450 in Anne Arundel County will be closed for up to two weeks as crews repair a sinkhole.

The Maryland Department of Transportation State Highway Administration closed the section of Maryland 450 (Defense Highway) between A and Eagle Boulevard and Windermere Court Tuesday morning. It will remain closed until two 5-foot diameter pipes can be excavated and replaced.

“Crews will work throughout the day and night to expedite repairs,” the department’s District 5 Engineer Corren Johnson said in a release. “The road will be closed for up to two weeks. Both lanes will be closed 24 hours a day, allowing contractors to complete these emergency road repairs.”

Westbound Maryland 450 drivers will be directed to a detour route which includes Housley Road to Maryland 178 to Crownsville Road and back to Maryland 450. Eastbound Maryland 450 drivers will use Crownsville Road to Maryland 178 to Housley Road and back to Maryland 450.

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