Caltrans Announces Five-Day Closure of Westbound I-210 at San Gabriel River Bridge

IRWINDALE – The California Department of Transportation (Caltrans) has rescheduled a five-day closure of westbound Interstate 210 (I-210) at the San Gabriel River Bridge in Irwindale for a bridge upgrade project partially funded by Senate Bill 1 (SB 1). Crews will divert traffic from westbound I-210 to eastbound I-210, which will be converted to three-lanes in both directions between Interstate 605 (I-605) and Irwindale Ave. during the closure.

The following closures will be taking place Wednesday, July 20, at 10:00 p.m. through Tuesday, July 26, at 4 a.m.:

Westbound I-210 from Irwindale Ave. to I-605
Westbound I-210 Irwindale Ave. ramps
Westbound I-210 to southbound I-605 connector
I-605 to eastbound I-210 connector
Eastbound I-210 Mt. Olive on-ramps

A second five-day closure affecting eastbound I-210 will occur on Wednesday, August 10 at 10:00 p.m. through Tuesday, August 16 at 4:00 a.m.

Caltrans advises motorists to expect major delays, use I-10 or SR-60 as alternate routes, use public transportation on the Metro L Line (Gold) or Metrolink during the closures and if possible, work from home.

The closure schedule is subject to change due to weather, availability of equipment and materials, and construction-related issues. Motorists are encouraged to plan ahead and check the Caltrans QuickMap for up-to-the-minute traffic conditions. More information and updates on this project can be found on the District 7 website or on Twitter.

The work is part of a project to upgrade San Gabriel River Bridge on I-210 in Irwindale. The $30 million project – which includes $1.7 million from SB 1, the Road Repair and Accountability Act of 2017 – will upgrade existing bridge hinges and railings and strengthen bridge decks to improve safety.

SB 1 provides $5 billion in transportation funding annually split between the state and local agencies. Road projects progress through construction phases more quickly based on the availability of SB 1 funds, including projects that are partially funded by SB 1. For more information about other transportation projects funded by SB 1, visit