TRAVEL ADVISORY: 405 Freeway Closures Underway

A series of significant nightly freeway closures has begun, with the complete closure of the northbound San Diego 405 Freeway between Seal Beach Boulevard and the San Gabriel 605 Freeway.

Expect complete freeway closures every night for weeks to come.

On Saturdays and Sundays, the northbound lanes will close from 11 p.m. to 7 a.m. and from 11 p.m. to 5 a.m. on weekdays. Once work on the northbound side of the freeway is complete, the work and closures will transfer to the southbound side.

The West County Connector Project is the three-and-a-half-year aimed at creating seamless carpool-lane transitions between the 22, 405 and the 605 freeways, along with additional carpool lanes on the 405.

Suggested detours are:

• From the northbound I-405, exit Seal Beach Blvd., turn right and proceed north on Seal Beach Blvd. / Los Alamitos Blvd., turn left on Katella to access the northbound I-605 onramp
• From the northbound I-405, exit Seal Beach Blvd., turn left and proceed south on Seal Beach Blvd., turn right on Westminster Avenue, turn right on Studebaker Rd. to access the northbound I-405 onramp
• From the northbound I-405, exit Westminster Ave., turn left on Westminster Ave and proceed west, turn right on Studebaker Rd. to access the northbound   I-405 onramp
• From the northbound I-405, exit Westminster Ave., turn left on Westminster Ave. and proceed west, turn right on Seal Beach Blvd., continue north on Seal Beach Blvd. / Los Alamitos Blvd., turn left on Katella to access the northbound I-605 onramp