CONTRA COSTA COUNTY – Caltrans has scheduled full overnight closures of all lanes Eastbound on State Route 4 (SR-4) between the Cummings Skyway on-ramp and the Alhambra Avenue exit the city of Martinez.
Closures Schedule:
- Friday, October 17th - 7 PM to 6 AM
- Monday, October 20th - 7 PM to 6 AM
- Tuesday, October 21st - 7 PM to 6 AM
- Wednesday, October 22nd - 7 PM to 6 AM
- Thursday, October 23rd - 7 PM to 6 AM
- Friday, October 24th - 7 PM to 6 AM
- Saturday October 25th - 7 PM to 6 AM
**All work is weather dependent and subject to change.**
Detour Plan for EB traffic from Cummings Skyway to Alhambra:
- Exit Cummings Skyway Offramp.
- Left on Cummings Skyway
- Right on Franklin Canyon Rd.
- Left on Alhambra Ave.
- Right on EB 4 Onramp
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, follow 511.org on Twitter. For real-time traffic, visit Caltrans QuickMap.
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