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SR 520 Bridge Replacement and HOV Program


Crews navigate the 360-foot-long Pontoon T through the Hiram M. Chittenden Locks en route to Lake Washington on May 15, 2013.

The SR 520 Bridge Replacement and HOV Program will enhance safety by replacing the aging floating bridge and keep the region moving with vital transit and roadway improvements throughout the corridor.

The 12.8-mile program area begins at I-5 in Seattle and extends to SR 202 in Redmond.

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SR 520 Projects - Click a project title for more information
SR 520 Projects - Click project titles for more information

Contact information:

E-mail: SR520bridge@wsdot.wa.gov

Phone: 206-770-3500

Infoline: 1-888-520-NEWS (6397)

Mail: SR 520 Bridge Replacement and HOV Program
999 3rd Avenue, Suite 900
Seattle, WA 98104

Questions about tolling?

Call 1-866-936-8246 or visit Good to Go!


Medina to SR 202: Eastside Transit and HOV ProjectPontoon Construction Project


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