Schedule: Tuesday, April 22, Wednesday, April 23, 8 p.m. to 5 a.m. each night
Motorists advised to use McEwen Road detour
Contra Costa County – Caltrans has scheduled a full overnight closure of all westbound lanes on State Route 4 (SR-4) between the McEwen Road exit and the Cummings Skyway on-ramp in the city of Martinez to perform safety lighting installation along the highway. The closure is scheduled Tuesday, April 22 and Wednesday, April 23 from 8 p.m. until 5 a.m. the next mornings. All work is weather dependent. The westbound McEwen Road exit will remain open to facilitate the detour.
Detour Information:
Westbound traffic will be detoured as follows:
- Exit McEwen Road
- Turn left on McEwen Road
- Continue to Franklin Canyon Road
- Re-enter Westbound SR-4 via the Cummings Skyway on-ramp
Please follow posted signs and detour routes during the closure period. Eastbound SR-4 traffic is not expected to be affected.
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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