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, according to WSDOT. Travelers must follow a detour using northbound I-5 to Exit 71 for SR 508, then southbound back to US 12.
WSDOT warns travelers to slow down, stay focused, and expect delays during the nightly closures. The detour is signed and flaggers will direct traffic through the work zone.
The closure affects drivers traveling between the Skagit Valley and other areas that rely on US 12 as a key route. The repairs are expected to be completed by Aug. 20.