Overnight Alternating Eastbound and Westbound Lane Closures are Planned for I-580 in Contra Costa County, Including Areas Near The Richmond–San Rafael Bridge Toll Plaza and[...]

Contra Costa County - Caltrans District 4 continues construction for the I-580 Richmond-San Rafael Bridge Open Road Tolling Project. This project is designed to enhance traffic efficiency, safety, and toll operations. Work is expected to continue at the Richmond San Rafael Bridge Toll Plaza and along I-580 in both directions, with up to two lanes closed nightly between Bayview Avenue and Marina Bay Parkway, from 7:00 PM to 6:00 AM. These scheduled closures and construction activities will proceed Monday through Friday until the project's anticipated completion in Summer 2027.

Sign up for closure updates here: Richmond San Rafael Bridge Open Road Tolling Project. Or visit the Richmond - San Rafael Bridge | Caltrans.

Motorists should expect a speed limit reduction of 10 miles per hour throughout the work zone.

These activities are required for ongoing construction which includes removing existing toll booths and installing new tolling gantry. Project work also involves an updated lane configuration for westbound I-580 traffic crossing the Toll Plaza, new HOV signage in the median on I-580 between Bayview Ave and the Richmond-San Rafael Bridge as well as realigning the Stenmark Drive westbound I-580 on-ramp. and other related work. Richmond-San Rafael Bridge Temporary Gantry - Interim System produced by WSP.

Closure Details: *All work is weather dependent and subject to change.

Westbound I-580 - Richmond-San Rafael Bridge Toll Plaza

• Day Shift: Toll gantry structural concrete piers under construction on either side of WB I-580
• Occasional traffic breaks to move equipment through the toll plaza
• Reduced speed to 35 MPH from Castro Street on Ramp to the Toll Plaza prepare to merge

*Stenmark Drive will remain accessible; however, flaggers are being used to assist drivers through the area periodically.

*Daytime work will occur in Toll Plaza without lane closures.

Westbound & Eastbound I-580 - Between Bayview Avenue and Marina Bay Parkway

• Monday - Friday - 7:00 PM to 6:00 AM
• Up to 2 lanes closed at a time
• Median barrier reconstruction for HOV lane signage
• Reduced speed to 55 MPH motorists should prepare to merge

Changeable Message Signs (CMS) will provide advance notice for motorists traveling in the area.

Drivers may experience minor delays and are advised to plan ahead, prepare to merge and allow extra travel time.

Be work zone alert, drive with caution through the work zone.

To search for current District 4 lane closure information, please click here.

For 24/7 traffic updates, please visit 511.org: https://x.com/511SFBay
For real-time information, visit Caltrans QuickMap: https://quickmap.dot.ca.gov
Follow us on X: https://x.com/CaltransD4
Or call 1-800-472-7623, 1-800-427-ROAD for state highway conditions statewide.