SR 520 Construction Corner

The go-to source for information on SR 520 construction


SR 520 fully closed across Lake Washington 1/21 - 1/23

1/21/2023 to 1/23/2023
11:00 p.m. to 5:00am

Crews will be placing girders for the Montlake lid and pouring concrete for the new eastbound SR 520 bridge. Work will occur from 11 p.m. Saturday, Jan. 21, until 5 a.m. Monday, Jan. 23. During these work hours, SR 520 will be closed in both directions between Montlake Boulevard and 92nd Ave NE. During this closure, SR 520 between I-5 and Montlake will be open in both directions. The SR 520 Trail and Foster Island Trail will also remain open.

Traffic: From 11 p.m. Saturday, Jan. 21 until 5 a.m. Monday, Jan. 23, SR 520 will be closed in both directions between Montlake Boulevard and 92nd Avenue NE. During this closure, SR 520 between I-5 and Montlake will be open in both directions. The SR 520 Trail and Foster Island Trail will also remain open.

Activity Type Highway Closures

Learn more about how we're managing certain types of construction activities.

Note: This tool is presented for planning purposes only. Construction is inherently dependent on weather and other factors, and activities are subject to change.