New toll rates adopted for SR 520 bridge

Transportation Commission Office – PO Box 47308 – Olympia, WA 98504-7308
Contact: Reema Griffith, WSTC Executive Director, 360-705-7070 (Olympia)


The new rates will go into effect on Aug. 15

OLYMPIA – The Washington State Transportation Commission approved changes to the toll rates on the State Route 520 bridge during a public hearing on Wednesday, July 10. The new toll rates ensure the toll revenues generated will meet the financial obligations of the bridge.

Starting Thursday, Aug. 15, toll rates will increase by an average of 10 percent for the entire week, with variations by time of day and day of week. There will also be fewer rate variations throughout the week, resulting in six different prices instead of eight.

State law requires toll rates on the SR 520 bridge be set to maintain travel time, speed and reliability in the corridor. The law also requires that the tolls generate the necessary revenue to meet the bridge’s financial obligations, such as operations, ongoing maintenance costs and repaying the construction bonds used to build the bridge. In December 2023, the Office of the State Treasurer determined that current toll rates on the bridge would not be sufficient beginning in July 2025. The commission was then required to adjust toll rates this summer to raise the additional needed revenue.

For more information on the rate-setting process, visit the SR 520 bridge toll adjustment page of the commission’s website,



Americans with Disabilities Act Information: Individuals requesting reasonable accommodations may request written materials in alternate formats, sign language interpreters, physical accessibility accommodations, or other reasonable accommodations by contacting the Commission Office at 360-705-7070 or by emailing Persons who are deaf or hard of hearing may make a request
by calling the Washington State Relay at 711.

Title VI Notice to Public
It is the Washington State Transportation Commission’s policy to assure that no person shall, on the grounds of race, color, national origin, as provided by Title VI of the Civil Rights Act of 1964, be excluded from participation in, be denied the benefits of, or be otherwise discriminated against under any of its programs and activities. Any person who believes his or her Title VI protection has been violated, may file a complaint with WSDOT’s Office of Equity and Civil Rights (OECR). For additional information regarding Title VI complaint procedures and/or information regarding our non-discrimination obligations, please contact OECR’s Title VI Coordinator at (360) 705-7090.