Submitted by Washington State Department of Transportation
There’s good news for users of the Marvin Road overpass (State Route 510) in Lacey. Crews have successfully completed work well ahead of schedule. The overpass and associated ramps are open to travel. On Friday, July 31, the interchange and ramps were closed allowing crews to rebuild the Interstate 5 overpass into a diverging diamond interchange.
The Washington State Department of Transportation would like to thank travelers for their patience and cooperation during the extended closure.
While WSDOT will keep people moving in the new configuration, travelers can expect continued congestion on the overpass. Added congestion could continue into mid-September.
Travelers are encouraged to go early or late in the day, consolidate trips, or use alternative routes.
About a diverging diamond interchange
Travelers follow traffic signals, signs, and lines through the interchange. Carefully designed roadway striping, arrows, and signs direct travelers through the overpass.
Advance information about this project and other roadwork on state highways in Thurston County is available online. Travelers can get real-time information on the WSDOT app and by following the WSDOT regional Twitter feed.