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SR 520 Bridge Replacement and HOV Program


Eastbound SR 520 is now open with an extended eastbound HOV lane. Crews reopened eastbound SR 520 from I-5 to 84th Avenue Northeast around 1 a.m. Monday, Oct. 16, after a weekend closure to extend the highway's eastbound HOV lane closer to Montlake.

For the most up-to-date information about SR 520 construction activities and planned closures, check our SR 520 Orange Page .

Current News

SR 520's shared-use path to reach Seattle later this fall

You don't have to wait much longer. The new bicycle and pedestrian path along SR 520 is scheduled to extend from the floating bridge to Montlake by late fall. Get ready to NOT start your engine! 

Meet our new SR 520 ombudsman

We have a new ombudsman for the SR 520 Program. His job is to look into community concerns or suggestions about our construction work and its effects on neighborhoods in the corridor. Watch this video to hear our ombudsman, David Goldberg, discuss his new role or read his October report to the community.

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