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SR 520 Bridge Replacement and HOV Program


Full SR 520 closure scheduled for March 31 – April 3 
Crews plan to close all lanes and ramps of SR 520 between 92nd Avenue Northeast and Montlake Boulevard from 11 p.m. Friday, March 31, to 5 a.m. Monday, April 3. The bicycle/pedestrian path on the new floating bridge also will be closed over that weekend. Visit the WABN What's Happening Now Page for more information.

For the most up-to-date information about other construction activities and planned highway closures, including March's double-lane closures of westbound SR 520 and full overnight closures of eastbound SR 520, check out our SR 520 Orange Page .

Current News
Draft traffic management plan for the Montlake area
If you missed our March 22 public meeting on the draft Neighborhood Traffic Management Plan for the upcoming Montlake Phase of SR 520 construction, just click on these links to view the meeting's presentation slides (pdf 1.8mb) and display boards (pdf 2.8mb). You also can read the draft plan itself (pdf 7.6mb) and provide your feedback as part of a two-week public comment period. Find additional details here

Major Public Project Construction Noise Variance
The city of Seattle will host a public meeting on April 6 regarding WSDOT’s application for a noise variance for our upcoming Montlake Phase of construction. The meeting is set for 4 to 6:30 p.m. at Saint Demetrios Hall. Public comments will be submitted to the city of Seattle. More information is available on the city of Seattle's website.

If you missed our Feb. 28 meeting on this topic, the presentation (pdf 1.5 mb), display boards (pdf 3 mb), public outreach summary (pdf 10.5 mb), meeting summary (pdf 444 kb), and a short Q&A (pdf 470 kb) are available online. Read here for more information. 

Program Overview

The SR 520 Bridge Replacement and HOV Program is enhancing public safety and mobility by replacing the highway's aging, vulnerable bridges and making significant transit and roadway improvements throughout the corridor. The construction program's planned improvements extend from I-5 in Seattle to I-405 in Bellevue.

Click a project title for more information

Project photos on Flickr

View the latest SR 520 project photos on Flickr .

Construction cameras

View archived photos taken 'round the clock by mounted construction cameras .

Contact Information:  



Good To Go!



Phone: 206-770-3500

More information on Program Contact Us


West Approach Bridge North ProjectI-5 to Lake WashingtonFloating Bridge and Landings ProjectEastside Transit and HOV ProjectPontoon Construction Project