Drivers can expect two weeks of daytime delays on Highway 20 at Deception Pass at the end of March.

Starting Monday, March 30, crews will close one lane alternately to clean and inspect the bridge spans along the highway, according to the state Department of Transportation.

The cleaning is part of the state’s routine maintenance that occurs every two years, according to Tom Pearce with WSDOT communications.

“It’s important that we get this maintenance done… it will help to keep it lasting longer and safer,” Pearce said.

Drivers will encounter alternating, single-lane traffic at both the Deception Pass and Canoe Pass bridges, and may experience delays of up to 20 minutes, according to a WSDOT news release.

Maintenance crews will use under-bridge inspection trucks to clean and inspect the structure. WSDOT said they will be working with the City of Oak Harbor to inspect waterlines attached to the bridges during the closures.

Crews plan to work on weekdays only, from 8 a.m. to 2 p.m. Monday, March 30 through Friday, April 10, from 8 a.m. to 2 p.m. Work is expected to wrap up by noon each Friday.

During working hours, drivers will not be allowed to park on Pass Island, between the two bridges, according to WSDOT.