Single lane on eastbound SR 520 between I-5 and Montlake Blvd. closed nightly July 22 – September 1 (excluding Sundays) Date: July 22, 2026 to At least September 1, 2026 Time: As early as 8 p.m. until 6 a.m. Mondays through Saturdays Activity details: Street and lane closure Impact type: NighttimeOvernightTraffic Description: Crews will use this closure for dump truck staging in coordination with the single lane closure on Boyer Avenue East for the Boyer Hillside regrade. Traffic: A single right lane on eastbound SR 520 between I-5 and Montlake Boulevard will close for construction nightly beginning as early as 8 p.m. until 6 a.m. Monday through Saturday nights from July 22 to at least September 1. The eastbound SR 520 off-ramp will remain open during these lane closures unless otherwise noted. These lane closures will not be in effect every night and sometimes will have different starting times (e.g. 8 p.m.., 10 p.m., 11 p.m., 11:30 p.m. or 11:59 p.m.). We will do our best to call out unique starting times for proper planning. The lane closure will always end at 6 a.m. Learn more about the Boyer Hillside regrade work on our Portage Bay Major Construction Updates webpage. Closures Montlake Blvd. between E. Louisa St. and E. Roanoke St. reduced to one lane in each direction July 22-24 Westbound SR 520 between Montlake Blvd. and I-5 closed nightly Aug. 10-13 Eastbound SR 520 off-ramp to Montlake Blvd. closed nightly Aug. 11 & 12 Long-term closures Weekday parking restrictions near Fuhrman Ave. for staging site begin June 15 Boyer Avenue East reduced to a single lane between East Roanoke Street and Everett Avenue East July 20 – September 1 (excluding Sundays) Single lane on eastbound SR 520 between I-5 and Montlake Blvd. closed nightly July 22 – September 1 (excluding Sundays) Activities Vibratory casing installation in Portage Bay schedule: Week of July 20-26 Contact Info Email: sr520bridge@wsdot.wa.gov 24-hour construction hotline: 206-319-4520
