Road Work to Close I-405 in Seal Beach

Northbound lanes will be closed for a week or more. After those lanes are re-opened, southbound lanes will be closed until late January.

The northbound lanes of the San Diego Freeway in Seal Beach will be closed at night for the next week or more, as crews work to connect carpool lanes on three different highways.

The lanes, near Bolsa Chica Road, will close nightly at 11 p.m., the California Department of Transportation said on its website. It will re-open at 5 a.m. on weekdays and 7 a.m. on weekends.

The work is meant to connect carpool lanes carpool lanes on I-405, I-605 and S.R. 22. After the work on the northbound side is completed, CalTrans plans to close the southbound lanes in the same area, to connect the carpool lanes in the other direction.

Altogether, the project is expected to take about seven weeks to complete.

Orange County Transportation Authority advises drivers to use the following detours to avoid the closures:

- From the northbound I-405, exit Seal Beach Blvd., turn right and continue north on Seal Beach Blvd. / Los Alamitos Blvd., turn left on Katella to access the northbound I-605 on-ramp

- From the northbound I-405, exit Seal Beach Blvd., turn left and go south on Seal Beach Blvd., turn right on Westminster Avenue, turn right on Studebaker Rd. to access the northbound I-405 on-ramp

- 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 on-ramp

- From the northbound I-405, exit Westminster Ave., turn left on Westminster Ave. and continue west, turn right on Seal Beach Blvd., keep going north on Seal Beach Blvd. / Los Alamitos Blvd., turn left on Katella to access the northbound I-605 on-ramp

The $277 million project is expected to be completed by the end of the January, according to the Orange County Register.

It is meant to improve traffic flow on one of the most congested freeways in Orange County, according to the Orange County Transportation Authority. Some sections of the 405 sees 300,000 vehicles a day.

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