48-hour Weekend Off-Ramp Closure on State Route 4 at Harbor Street/Railroad Avenue

Published:

Schedule: Saturday, April 12, 2025, at 5:00 AM to Monday, April 14, 2025, at 5:00 AM

Contra Costa County – Caltrans has scheduled a 48-hour full closure of the Harbor Street/Railroad Avenue (Exit 23) off-ramp on westbound State Route 4 (SR-4) in Pittsburg. The work is now scheduled to start Saturday, April 12th at 5 AM through Monday, April 14th at 5 AM. The work will include barrier repairs and safety upgrades. All work is weather dependent.

Motorists traveling Westbound SR-4 are advised to take the Loveridge Road exit.

Traffic Control Measures:

Map showing the closure of exit 23 on westbound State Route 4. Motorists traveling on westbound SR-4 are advised to take the Loveridge Road exit.

Changeable message signs will be in place to assist motorists traveling in the area.

Motorists are advised to expect delays and allow extra time.

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.

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