The southbound I-405 freeway will be closed (between the I-605 freeway and Valley View Street) from midnight on Tuesday night, Feb. 21 until 5 a.m. on Wednesday morning, Feb 22. This overnight full closure is necessary to allow crews to perform minor demolition activities along the southbound I-405 / eastbound SR-22 connector, as they prepare to advance construction of the new SR-22 / I-405 carpool connector.

The southbound I-405 freeway will also be closed between midnight and 5 a.m. (from the I-605 freeway to Seal Beach Boulevard) nightly, Wednesday night, Feb. 22 through Saturday night, Feb. 25. This work is necessary to allow crews to pour concrete for the stem and soffit portion of the 7th Street bridge. The soffit is the underside of the bridge and the stem is the center part of the bridge.

Please be advised this night work may be loud and disruptive to the neighboring community due to truck activity, back-up alarms and equipment noise.

Recommended Detours:

From the southbound I-405, exit Studebaker Road - stay in the right lane and proceed south on Studebaker Road, turn left on Westminster Avenue:
To access the SB I-405 freeway continue east on Westminster Avenue to access the SB I-405 on-ramp
To access the EB SR-22 freeway continue east on Westminster Avenue and turn left on Goldenwest Street to access the EB SR-22 on-ramp
From the southbound I-605 freeway, take the Spring Street exit and turn right, proceed west on Spring Street and turn left on Studebaker Road, turn left on Westminster Avenue:
To access the SB I-405 freeway continue east on Westminster Avenue to access the SB I-405 on-ramp
To access the EB SR-22 freeway continue east on Westminster Avenue and turn left on Goldenwest Street to access the EB SR-22 on-ramp