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In this update:
Starting as early as Tuesday, Sept. 2, crews will resume installing piles in Portage Bay using an impact hammer. This kicks off Season 2 of in-water impact piledriving, which will continue through April 30, 2026.
Typical impact piledriving hours will be 8 a.m. to 5 p.m. on weekdays and 9 a.m. to 5 p.m. on weekends, though crews may work later into the evening if needed. If our schedule changes, we’ll send email updates to keep you informed.
During Season 2, crews will install approximately 50–70 piles in Portage Bay in the orange highlighted areas below.
Through Season 2, we will continue installing piles both on land and in the water on the east side of the project. We’ll eventually connect the temporary work trestle on the north side of the bridge to the haul road from Montlake Boulevard (near NOAA). We’ll also work on the west side of Portage Bay to finish installing piles for the temporary work trestle.
Reminder: Crews will continue impact piledriving on land and vibratory piledriving on land and in water year-round.
Want to stay up to date on our piledriving progress? Join our next monthly construction meeting at noon on Thursday, Sept. 18! Register now.
Thank you to neighbors who attended our in-person open house last week at Queen City Yacht Club! The WSDOT and Skanska teams appreciated the opportunity to meet with you and talk about what to expect over the next year.
Over 100 neighbors joined us to learn more about:
- Season 2 of in-water impact piledriving from Sept. 2, 2025, through April 30, 2026
- Progress on the temporary work trestles and haul road connections
- Building the permanent Portage Bay bridges and removing the existing bridge
- Upcoming traffic impacts and nighttime construction
If you were unable to attend the open house, don’t worry! You can view the informational display boards online on our SR 520 Construction Corner website.
Back in March, we shared news that we had acquired the property at 2575 West Montlake Place East. This house is located just south of the eastbound SR 520 off-ramp to Montlake Boulevard.
As we noted in our previous update, the house is a contributing property to the Montlake Historic District. That means we needed to consult with our Section 106 concurring parties and the Department of Archeology and Historic Preservation about how we could use the property and mitigate potential adverse effects.
Last week, we finalized an amendment to our Section 106 Programmatic Agreement allowing WSDOT to demolish the house and build an access road to the south work trestle. To mitigate the adverse effects, we took photos and wrote a detailed description of the home’s structures. This will preserve an accurate historic record of the property. We also hired a nonprofit to salvage and reuse some of the house’s architectural elements, such as doors, windows, moldings, etc.
You can read our FAQ to learn more about why we bought this house, what happens next and what nearby neighbors can expect during construction.
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Sept. 2-4: Westbound SR 520 off-ramp to northbound I-5 and East Roanoke Street closed nightly
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Sept. 3: Montlake Boulevard on-ramp to westbound SR 520 closed overnight
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Ongoing: Bill Dawson Trail closed until 2030
Check our Construction Corner map for the most up-to-date information on SR 520 closures and construction impacts.
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Call or text our project-specific construction hotlines with pressing questions or concerns related to the:
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Portage Bay Project: 206-319-4520
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Montlake Project: 206-775-8885
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SR 520/I-5 Connection Project: 206-316-2559
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Call the SR 520 Program information line (206-200-9484, M-F 8 a.m. - 5 p.m.) with general SR 520 inquiries.
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Email SR 520 staff with your questions about the project or construction activities.
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Visit the SR 520 Construction Corner for the most up-to-date information on closures and construction impacts.
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Visit the SR 520 Program website to find general information about the project.
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Email Regina Glenn, WSDOT Megaprograms Diversity and Inclusion Manager, for more information about contracting opportunities.
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Follow us on Twitter/X and BlueSky to get key news and updates about the SR 520 program.
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View current Montlake Project construction photos, taken continuously day and night, by mounted construction cameras
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Share the ROTW listserv with your friends and neighbors.
Note: We combined our two SR 520 Program email lists into one. This newsletter will focus on Portage Bay Project construction and closures while also sharing other SR 520 updates. You can manage your preferences or unsubscribe anytime.
If you have difficulty understanding English, you may request language assistance services free of charge by calling (360) 705-7090 or emailing TitleVI@WSDOT.WA.GOV.
Español - Spanish servicios de traducción Aviso a personas con dominio limitado del idioma inglés: Si usted tiene alguna dificultad en entender el idioma inglés, puede, sin costo alguno, solicitar asistencia lingüística con respecto a esta información llamando al (360) 705-7090, o envíe un mensaje de correo electrónico a: TitleVI@WSDOT.WA.GOV.
中文 - Chinese 翻译服务 如果您难以理解英文，则请致电：(360) 705-7090，或给我们发送电子邮件： TitleVI@WSDOT.WA.GOV，请求获取免费语言援助服务。
tiếng Việt-Vietnamese các dịch vụ dịch thuật Nếu quý vị không hiểu tiếng Anh, quý vị có thể yêu cầu dịch vụ trợ giúp ngôn ngữ, miễn phí, bằng cách gọi số (360) 705-7090 hoặc email cho chúng tôi tại: TitleVI@WSDOT.WA.GOV.
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Af-soomaaliga - Somali Adeegyada Turjumaada Haddii ay kugu adag tahay inaad fahamtid Ingiriisida, waxaad, bilaash, ku codsan kartaa adeegyada caawimada luuqada adoo wacaaya (360) 705-7090 ama iimayl noogu soo dir: TitleVI@WSDOT.WA.GOV.
русский - Russian Услуги перевода Если вам трудно понимать английский язык, вы можете запросить бесплатные языковые услуги, позвонив по телефону (360) 705-7090 или написав нам на электронную почту: TitleVI@WSDOT.WA.GOV.
ِيَّة Arabic - اَلْعَ َرب خدمات الترجمة إذا كنت تجد صعوبة في فھم اللغة الإنجلیزیة، فیمكنك مجان ا طلب خدمات المساعدة اللغویة عن طریق الاتصال بالرقم .TitleVI@WSDOT.WA.GOV: الإلكتروني البرید عبر مراسلتنا أو)، 360) 705-7090
Thank you for signing up for the SR 520 Rest of the West news email updates. WSDOT will keep the community informed of current and planned construction activities through these updates and the tools listed above.
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