SR 520 Construction Corner

The go-to source for information on SR 520 construction


Westbound SR 520 closed overnight 9/22 and 9/23

9/22/2021 to 9/24/2021
9:00 p.m. to 5:00 a.m.

Crews will be working on the underside of the Montlake lid. This work will occur from 9 p.m. until 5 a.m. Wednesday, Sept. 15, Thursday, Sept. 16, Wednesday, Sept. 22 and Thursday, Sept. 23. During these work hours westbound SR 520 across Lake Washington will be closed between 92nd Avenue NE and Montlake Boulevard. Westbound SR 520 will reopen at 5 a.m. on Friday morning, Sept. 24.

Traffic: From 9 p.m. to 5 a.m. on Wednesday, Sept. 22 and Thursday, Sept. 23, westbound SR 520 across Lake Washington will be closed between 92nd Avenue NE and Montlake Boulevard.

Activity Type Lane and Ramp Closures
Activity Type Highway Closures
Activity Type Nighttime Activities

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.