Traffic Advisories

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January 11, 2021

UPDATE - Night closures on I-10, McClure Tunnel & PCH in Santa Monica #malibu

On Monday night, January 11, Caltrans begins construction on a project to upgrade the tunnel lighting system and install a queue warning system at the McClure Tunnel on Interstate 10/Santa Monica Freeway (I-10) and State Route 1/Pacific Coast Hwy (PCH) in Santa Monica.

Initial overnight full closures of the McClure Tunnel and nearby on- and off-ramps beginning January 8 include:

• McClure Tunnel - Eff 3/1/2021 - Fully closed in one direction from 10:00 PM to 5:00 AM
• Westbound I-10 - Lincoln Blvd/Olympic Blvd on-ramp closed from 7:00 PM to 6:00 AM
• Eastbound I-10 - 4th St on-ramp and Lincoln Blvd. off-ramp closed from 7:00 PM to 6:00 AM
• Eastbound PCH - Ocean Ave off-ramp closed from 7:00 PM to 6:00 AM

Closures are weather-permitting and subject to change. Motorists should expect delays and are advised to use alternate routes during construction hours.

Additionally, motorists can view current traffic closures before they leave for their destination by visiting the Caltrans Quickmap (

This project is anticipated to be completed in Spring 2022. Updates will be posted when locations and/or dates and times of closures change.

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Latest Update:

February 26, 2021 4:21 PM

Effective Monday, March 1, 2021, the McClure Tunnel closure changes to full closure in one direction 10:00 PM to 5:00 AM. All other closures unchanged.