ALERT: SR 520 closed between Montlake Blvd. and I-5 in Seattle overnight April 25 and 26

Temporary SR 520 ramp and lane closures for Opening Day of Boating Season May 2

Date: May 2, 2026 to May 2, 2026

Time: 10 a.m. to 4 p.m.

Activity details:

Street and lane closureRamp closure

Impact type:

Traffic

Description: To accommodate the 2026 Opening Day of Boating Season, the westbound SR 520 off-ramp to Montlake and a single lane on the eastbound SR 520 off-ramp to Montlake will temporarily close.

Traffic: The westbound SR 520 off-ramp to Montlake Boulevard, and the left lane of the eastbound SR 520 off-ramp to Montlake Blvd. will close between 10 a.m. and 4 p.m. on Saturday, May 2, due to the 2026 Opening Day of Boating Season.

What to expect: During this time, westbound SR 520 travelers coming from across Lake Washington will not be able to exit at Montlake Boulevard and will need to either continue westbound toward the off-ramps to I-5 or East Roanoke Street or take the Lake Washington Boulevard exit.

The eastbound SR 520 off-ramp to Montlake Blvd. will remain open, however travelers will not be able to turn left (northbound) towards the Montlake Bridge and will either need to travel south on Montlake Boulevard or continue east onto Lake Washington Boulevard.

Please note the Montlake Bridge will also be closed during these hours.

SR 520 remains open across Lake Washington for both directions.

Contact Info

Email:  sr520bridge@wsdot.wa.gov 24-hour construction hotline: 206-319-4520