Montlake Blvd. between E. Louisa St. and E. Roanoke St. reduced to one lane in each direction July 22-24 Date: July 22, 2025 to July 24, 2025 Time: Wed. 8 p.m.–Thurs. 6 a.m.; Thurs. & Fri. 9:30 a.m.–2:30 p.m. Activity details: Street and lane closure Impact type: NighttimeDaytimeOvernight Description: Crews will use this closure to build a foundation for a future mast-arm sign for the Montlake sign structures work. Traffic: Neighbors and drivers should prepare for Montlake Boulevard to be reduced to one lane in each direction between East Louisa Street and East Roanoke Street. Expect additional congestion and delays. Allow extra travel time. Lane reduction dates and times: 8 p.m. Wednesday, July 22, to 6 a.m. Thursday, July 23 (overnight) 9:30 a.m. to 2:30 p.m. Thursday, July 23 (daytime) 9:30 a.m. to 2:30 p.m. Friday, July 24 (daytime) Crews will build a foundation for a future mast-arm sign, including excavation, concrete placement and site prep. 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
