More Overnight 605 Freeway Closures Announced Between Cerritos and Irwindale

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A series of overnight lane and ramp closures on the San Gabriel River (605) Freeway between Cerritos and Irwindale are scheduled to begin on Monday night and continue through Thursday as part of an ongoing repaving project. The closures will impact multiple lanes, ramps, and freeway connectors during the overnight hours.

Why it matters

These closures will cause significant disruptions and delays for drivers traveling on the 605 Freeway through this area over the next several nights. Commuters and other travelers should plan ahead and consider alternate routes to avoid getting stuck in traffic.

The details

The closures will include the Carson Street and Rosecrans Avenue on-ramps to northbound 605, the South Street off-ramp, the right southbound lane between Del Amo Boulevard and north of Katella Avenue, and the Alondra Boulevard off-ramp from southbound 605. The connector from eastbound 105 Freeway to northbound 605 will also be closed. Additionally, up to three lanes in both directions of 605 will be closed between the 10 Freeway and 210 Freeway.

• The closures will start on Monday night, March 17, 2026 and continue through Thursday, March 20, 2026.
• Most lane and ramp closures will be in effect from 8 p.m. to 6 a.m. each night, with some lasting until 9 a.m. or 10 a.m. on weekends.

What’s next

Drivers should check traffic reports and plan alternate routes to avoid the 605 Freeway construction zone during the overnight hours this week.