QUICK SUMMARY
Drivers in South King County will pay tolls starting Monday, Sept. 29, on a new section of SR 509 between I-5 and 24th Ave South. Tolls will range from $1.20 to $2.40 for Good To Go! pass holders, while drivers without an account will be billed with an extra fee. Revenue will support road maintenance and additional projects under the Puget Sound Gateway Program.
South King County drivers will soon face tolls on a one-mile section of the newly opened SR 509 expressway, starting Monday, Sept. 29. This tolled stretch runs between I-5 and 24th Ave South, located just south of Sea-Tac International Airport. Tolls will be charged in both directions at the I-5 ramps, with Good To Go! pass holders paying between $1.20 and $2.40, depending on the time of day. Drivers without an account will receive a bill by mail, including an additional $2 per trip. The toll revenue will cover road maintenance costs and support projects under the Puget Sound Gateway Program. This initiative aims to alleviate congestion on I-5 and enhance freight mobility to the Ports of Seattle and Tacoma, as well as SEA Airport. The expressway's first mile opened in late June, and construction on the final two-mile extension, connecting to South 188th Street, is set to finish in 2028. For more information on tolling and setting up a Good To Go! account, visit MyGoodToGo.com.