Update: Eastbound SR-24 Lane and Ramp Closures for Bridge Repairs in Lafayette Has Been Delayed Due to Weather Conditions

Cancelled for Saturday, April 11,2026 7:30 AM to 4:30 PM

Contra Costa Counties – Caltrans will be repairing the bridge deck near eastbound SR-24 in Lafayette, which means one lane will be closed and the Acalanes Road on-ramp to eastbound SR-24 will not be accessible for a period. The closure extends from the Acalanes Road off-ramp past the El Nido Ranch Undercrossing. The work is tentatively set for Saturday, April 11, 2026, from 7:30 AM until 4:30 PM and may be adjusted depending on weather conditions. Drivers should anticipate delays and consider alternate routes, as there will be no freeway access from Acalanes Road during these repairs.

Closure Details

• Location: Eastbound SR-24 from Acalanes Road off-ramp to just east of El Nido Ranch Undercrossing
• Date: Saturday, April 11, 2026 (weather permitting)
• Time: 7:30 AM to 4:00 PM

Traffic Impacts

• Lane #4 eastbound SR-24 from Acalanes Road off-ramp to just east of El Nido Ranch closed
• Acalanes Road on-ramp to eastbound SR-24 will be closed
• Three lanes will remain open to traffic

Detour Information

• Continue on Acalanes Road
• Turn left on Mount Diablo Boulevard
• continue through Downtown Lafayette
• Merge onto eastbound SR-24 via the First Street on-ramp

Traffic Control Measures:

Changeable message signs will be in place to assist motorists traveling in the area. Motorists are advised to expect delays and allow extra time. Please drive with caution through the construction zone. Slow for the Cone Zone.

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.