US 12 over I-5 will close one lane nightly from 7:30 p.m. Monday, Aug. 10, to 6 a.m. Thursday, Aug. 20, for bridge repairs.
Travelers must follow a signed detour using northbound I-5 to Exit 71 for SR 508, then southbound back to US 12. WSDOT warns of delays and advises drivers to slow down.
The closure ends Aug. 20, 2026, with detours in place for the duration. Local access is not affected by this closure.