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Spring 2022 – SR 509 Completion Project Online Open House – What’s Next?

What’s next?

In summer 2022, WSDOT will begin the proposal development process, seeking qualified contractor teams,for the SR 509, 24th Avenue South to South 188th Street – New Expressway Project.  In 2023, WSDOT will select a design-build contractor who will complete final design in early 2024 and begin construction in late 2024.