Montlake Blvd. closed between E. Hamlin St. and E. Louisa St. around-the-clock Aug. 21-24 Date: 8/21/2026 to 8/24/2026 Time: 10 p.m. Friday, Aug. 21, to 6 a.m. Monday, Aug. 24 Activity details: Street and lane closureHigh-impact construction Impact type: Around-the-clockBike/pedestrianTrafficNoiseVibration Crews will close Montlake Boulevard between East Hamlin Street and East Louisa Street, as well as some surrounding streets and ramps, including: The Montlake Boulevard on-ramps to eastbound and westbound SR 520. The eastbound SR 520 off-ramp to Montlake Boulevard. A 300-foot-long section of East Roanoke Street west of Montlake Boulevard. Lake Washington Boulevard between Montlake Boulevard and 24th Avenue East. The westbound SR 520 off-ramp to northbound Montlake Boulevard will remain open. Crews will maintain a path for people walking, biking and rolling to cross SR 520 on Montlake Boulevard, with a limited detour south of SR 520. Work during this closure During the Aug. 21-24 weekend closure, crews will: Install three new mast-arm sign structures (two northbound and one southbound) Remove the large sign bridge spanning Montlake Boulevard just south of SR 520 Mount new signs on the mast-arm structures Install a new southbound sign north of SR 520 that will be mounted on an existing utility pole Looking for more information about the Montlake sign structure work? Visit our webpage here. If you have questions about this work and closure, please call 206-200-9484. Closures Eastbound SR 520 off-ramp to Montlake Boulevard closed nightly Oct. 12-15 Westbound SR 520 off-ramp to northbound I-5 and East Roanoke Street closed nightly Oct. 5-8, Oct. 19-22, & Oct. 26-29 Boyer Ave. E. between E. Roanoke St. and Everett Ave. E. closed nightly Oct. 12-15 Montlake Boulevard on-ramp to westbound SR 520 closed nightly Oct. 13-14 Southbound I-5 off-ramp to eastbound SR 520 closed overnight Oct. 14 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 – Oct. 23 (excluding weekends) Activities Portage Bay piledriving schedule: Week of Oct. 12-18 Contact Info Email: sr520bridge@wsdot.wa.gov 24-hour construction hotline: 206-319-4520
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 Eastbound SR 520 off-ramp to Montlake Boulevard closed nightly Oct. 12-15 Westbound SR 520 off-ramp to northbound I-5 and East Roanoke Street closed nightly Oct. 5-8, Oct. 19-22, & Oct. 26-29 Boyer Ave. E. between E. Roanoke St. and Everett Ave. E. closed nightly Oct. 12-15 Montlake Boulevard on-ramp to westbound SR 520 closed nightly Oct. 13-14 Southbound I-5 off-ramp to eastbound SR 520 closed overnight Oct. 14 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 – Oct. 23 (excluding weekends) Activities Portage Bay piledriving schedule: Week of Oct. 12-18 Contact Info Email: sr520bridge@wsdot.wa.gov 24-hour construction hotline: 206-319-4520
Montlake Blvd. closed between E. Hamlin St. and E. Louisa St. around-the-clock July 17-20 Date: 7/17/2026 to 7/20/2026 Time: 10 p.m. Friday, July 17, to 6 a.m. Monday, July 20 Activity details: Street and lane closure Impact type: Around-the-clockBike/pedestrianTrafficNoiseVibration Crews will close Montlake Boulevard between East Hamlin Street and East Louisa Street, as well as some surrounding streets and ramps, including: The Montlake Boulevard on-ramps to eastbound and westbound SR 520. The eastbound SR 520 off-ramp to Montlake Boulevard. A 300-foot-long section of East Roanoke Street west of Montlake Boulevard. Lake Washington Boulevard between Montlake Boulevard and 24th Avenue East. The westbound SR 520 off-ramp to northbound Montlake Boulevard will remain open. Crews will maintain a path for people walking, biking and rolling to cross SR 520 on Montlake Boulevard, with a limited detour south of SR 520. Work during this closure During the July 17-20 weekend closure, crews will: Dig, form and pour concrete foundations for three new mast arm structures on Montlake Boulevard. Remove the foundations of the third, uninstalled sign bridge that was planned to be installed on Montlake Boulevard south of East Hamlin Street. Replace roadway panels on Montlake Boulevard and East Roanoke Street. This work requires a temporary noise variance from the city of Seattle, and nearby neighbors will be offered a hotel. Nearby neighbors can expect to hear construction noise and potentially feel vibration from concrete sawing, excavation, digging, hauling, vacuum truck operations and concrete pours. Looking for more information about the Montlake sign structure work? Visit our webpage here. Closures Eastbound SR 520 off-ramp to Montlake Boulevard closed nightly Oct. 12-15 Westbound SR 520 off-ramp to northbound I-5 and East Roanoke Street closed nightly Oct. 5-8, Oct. 19-22, & Oct. 26-29 Boyer Ave. E. between E. Roanoke St. and Everett Ave. E. closed nightly Oct. 12-15 Montlake Boulevard on-ramp to westbound SR 520 closed nightly Oct. 13-14 Southbound I-5 off-ramp to eastbound SR 520 closed overnight Oct. 14 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 – Oct. 23 (excluding weekends) Activities Portage Bay piledriving schedule: Week of Oct. 12-18 Contact Info Email: sr520bridge@wsdot.wa.gov 24-hour construction hotline: 206-319-4520
Boyer Ave. E. between E. Roanoke St. and Everett Ave. E. reduced to a single lane daily Feb. 18 – June 18 Date: Feb 18, 2026 to June 18, 2026 Time: 9:30 a.m. to 3:30 p.m. daily (includes some Saturday shifts as noted) Activity details: Street and lane closureHigh-impact construction Impact type: DaytimeBike/pedestrianParking RestrictionsTrafficNoise Traffic: Boyer Avenue East between East Roanoke Street and Everett Avenue East will reduce to a single lane for both directions from 9:30 a.m. to 3:30 p.m. beginning Wednesday, Feb. 18 through at least Thursday, June 18 Please note there are 24-hour and daytime parking restrictions through the work area as well as sidewalk closures with detours during active work hours. Flaggers will be on-site to guide drivers and pedestrians through the work area. Travelers should plan for potential delays and neighbors should expect to hear noise from increased truck traffic and construction equipment in the area. Closures Eastbound SR 520 off-ramp to Montlake Boulevard closed nightly Oct. 12-15 Westbound SR 520 off-ramp to northbound I-5 and East Roanoke Street closed nightly Oct. 5-8, Oct. 19-22, & Oct. 26-29 Boyer Ave. E. between E. Roanoke St. and Everett Ave. E. closed nightly Oct. 12-15 Montlake Boulevard on-ramp to westbound SR 520 closed nightly Oct. 13-14 Southbound I-5 off-ramp to eastbound SR 520 closed overnight Oct. 14 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 – Oct. 23 (excluding weekends) Activities Portage Bay piledriving schedule: Week of Oct. 12-18 Contact Info Email: sr520bridge@wsdot.wa.gov 24-hour construction hotline: 206-319-4520
