As part of its semi-annual viaduct inspection, Washington State Department of Transportation crews will be closing the Alaskan Way Viaduct this weekend, March 21 and 22.

The closure will allow the state to perform routine maintenance, such as repairing potholes, expansion joints and bridge rails, checking drainage system and traffic cameras.

Both directions of the Alaskan Way Viaduct from the Battery Street Tunnel to Spokane Street will be closed from 6 a.m. to 6 p.m. on both Saturday and Sunday.

The Battery Street Tunnel will be closed from 11 p.m. on Friday, March 20 to 5 a.m. on Monday, March 23.

The crew visually inspects the viaduct every three months and conducts full inspections every six months to measure any new damage or movement.

A viaduct walking tour during the inspection closure will also be available to the public on Saturday, March 21 between 9:30 a.m. and noon. They will last approximately 45 minutes and will begin at the Columbia Street on-ramp before continuing to the viaduct’s lower deck.

To make reservations send an email to viaduct@wsdot.wa.gov or call 1-888-AWV-LINE or for more information on the Alaskan Way Viaduct project or results of the March inspection visit www.alaskanwayviaduct.org.