Montlake Boulevard, Lake Washington Boulevard and associated ramps closed overnight tonight, Dec. 10; Portage Bay Project updates and Bike the Bridge event this Saturday

There is a horizontal green band that reads Rest of the West News. Above it is the letters W S D O T. An oval on the right reads state route 520.

In this update:


Montlake Boulevard, Lake Washington Boulevard and associated SR 520 ramps closed overnight, Dec. 10

Heads up! Crews will close several streets in Montlake tonight for striping, landscaping and utility work. The closures are listed below and will start at 10 p.m. tonight, Dec. 10, until 5 a.m. tomorrow morning.

Here's what's closed:

  • Montlake Boulevard between East Hamlin Street and East Louisa Street
  • Lake Washington Boulevard between Montlake Boulevard and East Foster Island Road
  • All associated SR 520 on- and off-ramps to and from Montlake and Lake Washington Boulevards

Note: Drivers heading east on SR 520 from I-5 will need to pay a toll to cross the bridge since there’s no exit before the toll when the Montlake Boulevard ramp is closed.

A signed detour for pedestrians and bicyclists will be in place through the work area. The SR 520 Trail will be open. Local access on Lake Washington Boulevard will be maintained.

This work is weather dependent. For the latest updates, visit our Construction Corner webpage and follow us on X/Twitter.


Reminder: Celebrate Montlake’s new bike and pedestrian bridge opening this Saturday, Dec. 14!

As the Montlake Project wraps up, we’re excited to invite you to celebrate the grand opening of the new bike and pedestrian bridge over SR 520. Be among the first to bike (or walk or roll) across the bridge at 11:30 a.m. this Saturday, Dec. 14, and enjoy festivities starting at 11 a.m.!

Additional event details below and on our event webpage:

  • Schedule: The event will begin at 11:00 a.m. At 11:30 a.m., we’ll gather at the north end of the bridge for welcoming remarks followed by the inaugural first ride/walk.
  • Location: We will begin the event on the north side of the bridge, closer to the University of Washington. You will not be able to access the south side until after we open the bridge. The site map outlines potential routes to reach the start line and other event facilities. Please note street parking in the area is limited; we encourage participants to use transit and/or bike and walking paths. Check out King County Metro’s Trip Planner to map your route.
  • Tours: At 12:30 p.m., we’ll kick off guided tours of the new Montlake Lid and the Washington Park Arboretum (hosted by The Arboretum Foundation and UW Botanic Gardens).
  • Bike repairs: We want to thank Gary from Montlake Bicycle Shop for offering free bike repairs following the ride. The bike repairs will be located on the Montlake Lid, next to the starting point of lid tours.

Don’t forget to dress for the weather or bring an umbrella just in case. Bring your family, friends and furry friends too – all are welcome. We can’t wait to see you there!

Have any questions? Reply to this email or contact us at sr520bridge@wsdot.wa.gov.

Graphic shows bike the bridge flyer with info about the Dec 14 event

Portage Bay Project update: Upcoming tree and vegetation removal

During November’s monthly construction meeting, our contractor Skanska shared plans for upcoming tree removals beginning this month in the Boyer hillside area. Skanska is shifting the order and timeline of these removals to better align with upcoming utility work in the area.

Here is the updated tree and vegetation removal schedule:

  • February to March 2025: Bill Dawson Trail area
  • April 2025: Boyer Hillside area
  • May 2024: SR 520 near 10th Avenue East and Delmar Drive East

These dates are subject to change. Want to get the latest information on this work? Sign up for our next construction meeting this Thursday, Dec. 12, or check out the updated Tree and Vegetation Removal FAQ on the Construction Corner.

If you have questions, send us an email at sr520bridge@wsdot.wa.gov or call the Portage Bay Project’s 24-hour construction hotline at 206-319-4520. 

photo looking west shows foundations of a bridge an dbarge in the background of portage bay

A look at Portage bay construction progress, looking west


December online construction meetings

Montlake Project online construction meeting on Dec. 11

Join us for our next Montlake Project monthly construction meeting held virtually at 12:30 p.m. on Wednesday, Dec. 11. You’ll learn about current and upcoming construction activities, including planned street and highway closures. Register below to attend and participate in a Q&A.

Missed the last Montlake Project monthly meeting? You can view the presentation online (PDF 5.6MB) or watch the meeting recording on YouTube.

Portage Bay Project online construction meeting on Dec. 12

Join us for our next Portage Bay Project monthly construction meeting held virtually at noon on Thursday, Dec. 12. You’ll learn about current and upcoming construction activities, including updates on piledriving progress, tree and vegetation removal, upcoming utility work and more. A Q&A session will follow. Submit questions in advance to sr520bridge@wsdot.wa.gov.

Missed the last Portage Bay Project monthly meeting? You can view the presentation online (PDF 3.4MB) or watch the meeting recording on YouTube.


Construction Corner roundup

  • Dec. 10: Montlake Boulevard, Lake Washington Boulevard and associated SR 520 ramps closed overnight
  • Dec. 12: SR 520 closed in both directions across Lake Washington (eastbound access to Montlake only) overnight
  • Dec. 14: SR 520 closed in both directions across Lake Washington (eastbound access to Montlake only) overnight
  • Ongoing: Montlake Boulevard on-ramp to eastbound SR 520 closed weeknights

Check out the SR 520 Construction Corner map for the most up-to-date information on closures and construction impacts


How to reach us and stay informed about SR 520 construction:

  • Call or text our project-specific construction hotlines with pressing questions or concerns related to the:
    • Montlake Project: 206-775-8885
    • SR 520/I-5 Connection Project: 206-316-2559 
    • Portage Bay Project: 206-319-4520
  • Call the SR 520 Program information line (206-200-9484, M-F 8 a.m. - 5 p.m.) with general SR 520 inquiries.
  • Email SR 520 staff with your questions about the project or construction activities.
  • Visit the SR 520 Construction Corner for the most up-to-date information on closures and construction impacts.
  • Visit the SR 520 Program website to find general information about the project.
  • Email Regina Glenn, WSDOT Megaprograms Diversity and Inclusion Manager, for more information about contracting opportunities.
  • Follow us on Twitter @wsdot_520 to get key news and updates about the SR 520 program.
  • View current Montlake Project construction photos, taken continuously day and night, by mounted construction cameras
  • Share the ROTW listserv with your friends and neighbors

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.

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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。

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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.