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In this update:
Crews will fully close westbound SR 520 (between Montlake Boulevard and I-5) around the clock from 11 p.m. Friday, Nov. 13, to 5 a.m. Monday, Nov. 16.
During the closure, crews will repair expansion joints on westbound SR 520 and shift the alignment of the westbound SR 520 off-ramp to northbound I-5.
 If you have questions or concerns about this work, call our 24-hour hotline at 206-319-4520 or email SR520bridge@wsdot.wa.gov.
Crews have been hard at work installing drilled shaft casings and rebar cages for another lid foundation just south of SR 520, similar to the one in the SR 520 median. So far, crews have used an oscillator to twist nine temporary steel casings into the ground.
Crews then dig out the soil from each casing, place a rebar cage inside it and fill it with concrete. Once the concrete hardens, we’ll use the oscillator to remove the temporary casings, leaving the concrete foundation in place.
Exposed steel casings and rebar cages for the future Roanoke lid foundation.
You can find more construction photos on WSDOT's Flickr Page.
Crews will continue to close the westbound SR 520 off-ramps to northbound I-5 and East Roanoke Street most weeknights through November to dig out soil near the ramps.
The closures start at 10 p.m. each night and ramps reopen by 6 a.m. the next morning. The schedule may change as work progresses. Check our Construction Corner for the latest updates.
Currently scheduled closure nights:
- Wednesday, Nov. 11, and Thursday, Nov. 12
- Monday, Nov. 16, through Thursday, Nov. 19
- Monday, Nov. 23, and Tuesday, Nov. 24
- Monday, Nov. 30, through Thursday, Dec. 3
Westbound SR 520 traffic continuing past the Montlake Boulevard and Lake Washington Boulevard exits will detour to southbound I-5. A single lane of westbound SR 520 between Montlake Boulevard and I-5 will also close.
Neighbors near the work zone will hear noise from trucks and construction equipment. If you have questions or concerns about this work, please call our 24-hour hotline at 206-319-4520, or email us at SR520bridge@wsdot.wa.gov.
Next online construction meeting is Thursday, Nov. 19
Join us for our next monthly construction meeting held virtually at noon on Thursday, Nov. 19. At the meeting, you'll hear an overview of construction progress and learn about upcoming construction activities, including street closures and piledriving updates. Register below to attend and email SR520bridge@wsdot.wa.gov with any questions.
Missed the last Portage Bay Project monthly meeting? You can view the presentation online (PDF, 2.7 MB) or watch the meeting recording on YouTube.
In-person pop-up event on Friday, Nov. 20
Join us for our last in-person event of the year! Our outreach team will be at the Montlake Community Center from 2 to 4 p.m. Friday, Nov. 20, to share what’s coming up in construction for the rest of the year. We're excited to see you there!
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July 20 – Nov. 24: Boyer Avenue East reduced to a single lane between East Roanoke Street and Everett Avenue East (excludes Sundays)
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Nov. 2 – Dec. 3: Westbound SR 520 off-ramps to northbound I-5 and East Roanoke Street closed (most weeknights)
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Nov. 13-16: Westbound SR 520 between Montlake Boulevard and I-5 closed around the clock
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Nov. 13-16: East Roanoke Street between 20th Avenue East and Montlake Boulevard closed around the clock
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 (24-hour hotline)
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Montlake Project: 206-200-9484, M-F 8 a.m. - 5 p.m.
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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.
- Be sure to check out the Document Library for FAQ's and other resources including information for neighbors who believe their homes have been damaged by construction vibration.
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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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Share the ROTW listserv with your friends and neighbors.
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View construction photos taken 'round the clock by our four mounted construction cameras.
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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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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