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SR 520 - Latest WABN Construction Update

West Approach Bridge North construction email updates are the best way to stay informed about construction progress.

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  • Sign up for the alert called “SR 520 West Approach Bridge North Project” from the subscription list (under the “Construction Reports”)

Latest email update, distributed May 25, 2017


Emerald City Bike Ride closures on Sunday, May 28

If the long holiday weekend and sunny weather forecast find you driving Sunday morning in Seattle or on the Eastside, make sure to leave yourself extra time to reach your destination. Staggered highway closures will take place on Sunday, May 28, for the Emerald City Bike Ride.

Here are the details of Sunday’s lane and ramp closures:

I-5 express lanes:

  • I-5 express lanes will close at 8 a.m. The lanes will open southbound by 10:30 a.m.

SR 520:

  • All lanes of eastbound SR 520 between Montlake Boulevard and 84th Avenue Northeast will be closed from 5:15 to 10:45 a.m.
  • The Montlake Boulevard on-ramps to westbound and eastbound SR 520 both will be closed from 5:15 to 10 a.m.


  • I-90 express lanes will close at 3 a.m. The lanes will open westbound by 1 p.m.
  • The left lane of westbound I-90 between Bellevue Way Southeast and I-5 will be closed from 5 to 11:45 a.m.

Montlake Boulevard:

  • The right lane of southbound Montlake Boulevard between the University of Washington and SR 520 will be closed from 5:15 to 10 a.m.

Paving ramping up in the MOHAI staging area

Paving of the future westbound SR 520 off-ramps in Montlake is expected to begin as early as Tuesday, May 30. The permanent off-ramps to Montlake Boulevard and Lake Washington Boulevard are currently scheduled to open in July. Nearby neighbors can expect:

  • Initial paving activities in the MOHAI staging area for a few days, between 8 a.m. and 5 p.m. daily.
  • To potentially feel vibrations during the daytime paving work as vibratory rollers (pictured to the right) compact the new pavement.

If you have any questions or concerns, please feel free to call the 24-hour SR 520 construction hotline at 206-708-4657. 

Neighborhood Traffic Management Plan Comment Summary posted online 

Thank you to everyone who shared feedback on the SR 520 Montlake Phase Neighborhood Traffic Management Plan (NTMP) as part of the March 21 to April 4 public comment period. WSDOT and the City of Seattle have developed a public comment summary that is now available to view on our website. The draft Montlake Phase NTMP is also available online. The final Montlake Phase NTMP report will be available this fall and will include the list of traffic management commitments and timeline for implementation.

Public comment overview
During the two-week public comment period, we received 539 comments, shared via an online survey, the March 22 public meeting, emails, and community petitions.

What we heard

  • Minimizing construction effects: The feedback we received stated that the top priority in the Montlake area is to minimize impacts during construction.
  • Enhancing safety: Another top priority for the neighborhood was improving safety for pedestrians and bicyclists, and implementing safety enhancements such as crossing beacons and traffic-calming measures.
  • Reducing cut-through traffic: Respondents also shared a strong preference for reducing cut-through traffic in the neighborhoods using measures such as traffic circles and speed humps.

Next steps

Summer 2017:

  • Evaluate public feedback and continue technical discussions between WSDOT and the City of Seattle.
  • Based on public comments, identify a specific list of traffic management measures and timeline for implementation.

Fall 2017:

  • Complete a WSDOT/City of Seattle agreement to fund and build these traffic management measures in the Montlake area.
  • Publish the final Montlake Phase NTMP, including the commitments and timeline for implementation.

We will complete additional updates to the NTMP for future phases of the SR 520 program, such as the Portage Bay Phase.

How to reach us and stay informed during WABN construction:

  • Call the 24-hour construction hotline (206-708-4657) with pressing questions or concerns.
  • Email WABN staff with your questions about the project or construction activities.
  • Join us for our monthly meetings on the first Wednesday of each month from 5:30 to 6:30 p.m. at the Graham Visitors Center.
  • Visit the SR 520 Orange Page for the most up-to-date information on closures and construction impacts.
  • Visit the WABN project website to find general information about the project.
  • Follow us on Twitter @wsdot_520 to get key news and updates about the SR 520 program.

Thank you for signing up for the West Approach Bridge North project construction email updates. WSDOT will keep the community informed of current and planned construction activities through these updates and the other tools listed above.

The West Approach Bridge North project is the next funded construction phase of the SR 520 Bridge Replacement and HOV Program.