55-Hour Single Lane Closures, Barrier Work on U.S. 101 San Mateo/Santa Clara County Line to Whipple Ave

Published: Oct 31, 2024

Cancelled Due To Weather
Friday, November 1, 10:00 PM thru Monday, November 4, 5:00 AM

San Mateo County - Caltrans will continue median barrier upgrade work on U.S. 101 between the San Mateo/ Santa Clara County line to Whipple Ave. Caltrans will close a 2.5-mile section of the North and Southbound Express Lanes (#1 lane) beginning on Friday, October 25, 10:00 PM thru Monday, October 28, 5:00 AM. This is the seventh of nine 55-hour single lane closures scheduled to complete barrier upgrade and related work. Each closure work limits will be a 2.5-mile section. All work will be done outside of Express Lane operational hours. An additional lane may be closed at various times during the closures to facilitate equipment and materials.

Scheduled Closures:

• August 9 - 12completed
• August 16 - 19completed
• August 23 - 26completed
• September 6 - 9completed
• September 13 - 16completed
• September 27 - 30completed
• October 25 - 28completed
• November 1 - 4cancelled
• November 15 - 18
• November 22 - 25 (added date)

Caltrans appreciates the cooperation and understanding of the traveling public as we make progress on upgrading the median barrier along U.S. 101 in San Mateo County.

Utilizing weekend closures significantly reduces the number of nighttime closures needed and increases safety for the workers and the motoring public.

For 24/7 traffic updates, please visit 511.org: https://twitter.com/511SFBay

For real-time information, visit Caltrans QuickMap: http://quickmap.dot.ca.gov

All work is weather dependent

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