Eastbound SR 520 between I-5 and Montlake Boulevard closed Oct. 2-5 Date: Oct. 2, 2026 to Oct. 5, 2026 Time: 11 p.m. Friday to 5 a.m. Monday Activity details: Partial highway closureHigh-impact construction Impact type: Around-the-clockTrafficNoise Description: Crews will use this closure to prepare sections of the existing bridge and remaining portions of the old off-ramp to Montlake Boulevard for removal. This work is part of the SR 520 Portage Bay Bridge and Roanoke Lid Project. Traffic: Eastbound SR 520 between I-5 and Montlake Boulevard in Seattle will close for construction beginning at 11 p.m. on Friday, Oct. 2, until 5 a.m. on Monday, Oct. 5. All traffic from I-5 wanting to enter eastbound SR 520 will need to use alternate routes. Please note: It is only the section of eastbound SR 520 between I-5 and Montlake Boulevard that will close. Eastbound SR 520 remains open across Lake Washington. The Montlake Boulevard on-ramp to eastbound SR 520 will also remain open during this work. Closures Eastbound SR 520 off-ramp to Montlake Boulevard closed around-the-clock Sept. 12 – 19 Eastbound SR 520 between I-5 and Montlake Boulevard closed Oct. 2-5 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 25 (excluding weekends) Activities Vibratory casing installation in Portage Bay schedule: Phase of work is complete Contact Info Email: sr520bridge@wsdot.wa.gov 24-hour construction hotline: 206-319-4520
