Major Seattle roadways closed during weekend construction

SEATTLE - Road construction is shutting down several major roadways around Seattle this weekend.

Crews reopened the Alaskan Way Viaduct Saturday night after an inspection closure, but all northbound traffic still must exit at Western Avenue until 5 a.m. Monday.

A portion of SR 99 north of downtown, including the Battery Street Tunnel, will stay closed while crews install a sewer line beneath Aurora Avenue North.

Find an alternate route if you were thinking of exiting I-5 at Corson Avenue. The Corson Avenue South off-ramps from north and southbound I-5 will close from 9 p.m. Friday to 6 a.m. Saturday because crews are lane striping.

The right lane of southbound I-5 will be closed in the vicinity of Northeast 130th Street from 5 to 9 a.m. Saturday for sign work.

Weather permitting, the northbound I-5 ramps to the West Seattle Bridge and lower South Spokane Street/Sixth Avenue South will be closed from 10 p.m. Saturday until 6 a.m. Sunday for permanent striping.

All lanes of westbound SR 520 between 92nd Avenue Northeast and Montlake Boulevard will close from 11 p.m. Friday to 5 a.m. Saturday and the same time Saturday night to Sunday morning for concrete work. One lane will close at 9 p.m. with all lanes closing at 11 p.m.

Also, the Montlake Bridge is closed to traffic from 5 a.m. Saturday morning until 5 a.m. Monday morning for maintenance.

Anyone leaving town should also note that Southbound SR 529 at the Snohomish River Bridge will be closed from 8 p.m. Sunday to 4 a.m. Monday for bridge mechanical work, and a detour will be in place for drivers.