WSDOT

Know before you go
The Marvin Road (SR 510) overpass has been converted into a diverging diamond interchange. Travelers are encouraged to follow the signs, lines and traffic signals as traffic is briefly directed to the left side of the overpass before taken back to the right.

While WSDOT will keep travelers moving in the new configuration, travelers can expect continued congestion on the overpass.

Crews must continue additional work before the interchange is complete. Added congestion could continue into mid-September. Travelers are encouraged to go early or late in the day, consolidate trips, or use alternative routes.

For more information about Marvin Road (SR 510) construction, check I5exit111.com . All users of the Marvin Road overpass are encouraged to sign up for email updates.