WSDOT Opens Part of New SR 509 Expressway in SeaTac
The Washington State Department of Transportation has opened the first mile of the new SR 509 Expressway in SeaTac, providing commuters with a new route between I-5 and 24th Avenue South. Atkinson Construction is working on the remaining 2 miles, with completion scheduled for 2029. Tolling will start soon to manage congestion and fund ongoing maintenance....
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The Washington State Department of Transportation has opened the first mile of the new SR 509 Expressway in SeaTac, providing commuters with a new route between I-5 and 24th Avenue South. Atkinson Construction is working on the remaining 2 miles, with completion scheduled for 2029. Tolling will start soon to manage congestion and fund ongoing maintenance....
