Richmond-San Rafael Bridge (Interstate 580) Nighttime Closure of Westbound Lane #2 and Eastbound Lane left shoulder and #2 lane for Maintenance

Scheduled Tuesday, Oct. 7-10, 2025, EB from 9:00 PM to 5:00 AM, Oct. 9, 2025,
WB 7:00 PM to 5:00 AM, and Oct.10, 2025, WB 8:00 PM – 5:00 AM

Contra Costa County & Marin County — Caltrans will be closing lanes on the Richmond-San Rafael Bridge (I-580), Nightly starting Tuesday, October 7th through Friday October 10th westbound 8PM until 5AM and eastbound 9PM until 5AM, the following morning due to maintenance. The lane closures will begin from the Toll Plaza to the west end of the bridge in Marin County. One lane will remain OPEN at all times.

Closure Details:

• Westbound I-580, Richmond-San Rafael Bridge Lane #2 will be Closed Thursday Oct. 9^th & 10^th, 8PM to 5AM
• Eastbound I-580, Richmond-San Rafael Bridge Left Shoulder and Lane #2 will be Closed Tuesday Oct. 7^th - 10^th, 9:00 PM to 5AM

Traffic Control Measures:
Changeable Message Signs (CMS) will alert drivers of closure. Motorists should expect minor delays, reduce speed, and plan extra travel time.

Please use caution and be prepared for merging traffic near work zones.
For 24/7 traffic updates, follow 511.org on Twitter. For real-time traffic, visit Caltrans QuickMap.

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