SR 520 Construction Corner

The go-to source for information on SR 520 construction


Lake Washington Boulevard fully closed 7/23 - 8/4

7/23/2023 to 8/4/2023
10:00 p.m. to Noon

Crews are completing drainage and the new permanent roadway. Lake Washington Boulevard will be closed in both directions from 10 p.m. Sunday, July 23, to Noon on Friday, Aug. 4 between 24th Avenue and Montlake Boulevard. The westbound SR 520 off-ramp to Lake Washington Boulevard will also be closed during this time.

Traffic:Lake Washington Boulevard will be closed in both directions from 10 p.m. Sunday, July 23, to Noon on Friday, Aug. 4 between 24th Avenue and Montlake Boulevard. The westbound SR 520 off-ramp to Lake Washington Boulevard will also be closed during this time.

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.