SR 520 Westbound will close Thursday, Aug. 29. The closures will allow construction crews to build foundations for the west-end of the bridge.         

SR 520 will close between 92nd Avenue Northeast and Montlake Boulevard. The highway will stay closed from 11 p.m. until 5 a.m. on Friday, Aug. 30. One of the lanes will be closed from 9 p.m. to 6 a.m. 

There are additional closures planned for Septmeber, including: from 11 p.m. on Sept. 6 to 5 p.m. on Sept. 7 and from 9 p.m. on Sept. 14 to 9 a.m. on Sept. 15.