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Southwest Region Projects

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WSDOT works to deliver projects that improve motorist safety and relieve congestion on state roadways. 

The Salmon Creek Interchange Project is one of the largest projects currently under construction in southwest Washington. The project will help reduce congestion and improve safety in the busy Salmon Creek area - but not without a few growing pains. Stay tuned to project information and avoid traffic delays this summer!
I-5 Closed June 7-10   
I-5 will be closed at the I-205 junction for a full weekend, June 7-10. Construction crews will install a 165-foot section of the new Salmon Creek Interchange. Drivers should start planning now to avoid traffic headaches in June. More...

Use the list below to follow the progress of WSDOT highway construction,
ferry and rail projects in your area.

Stay informed on scope, schedule, and budget
Find out about traffic impacts and public meetings
Learn about WSDOT's environmental and tribal consultation practices
Get in touch if you have questions or comments



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