Contra Costa County, CA (June 30, 2021) — Caltrans has scheduled two weekends of full and partial highway closures on Northbound State Route 242 (SR-242) in Concord. During these closures, Caltrans will perform major roadway rehabilitation work on northbound SR-242.
Northbound SR-242 will close starting on Friday, July 9 at 10 PM until Monday, July 12 at 10 AM. Caltrans plans a second weekend closure starting on Friday, July 16 at 10 PM until Monday, July 19 at 10 AM. During these closures, northbound SR-242 will fully close overnight, but one lane will re-open on northbound SR-242 during the daytime.
Northbound SR-242 will close both weekends between the SR-242/I-680 separation and the Concord Avenue onramp in Concord. The Concord Avenue on ramps to northbound SR242 will remain open during these closures. The Clayton Road off ramp from northbound SR242 will close from Friday night until Sunday morning each weekend.
Northbound SR-242 Detour Route
During the Northbound SR-242 closures, motorists heading eastbound towards Pittsburg and Antioch should use Northbound I-680 to connect with Eastbound State Route 4 (SR-4).
Local traffic should use alternate routes including Monument Boulevard, Willow Pass Road and Concord Avenue. Motorists should watch for detour signs and expect weekend traffic delays on Willow Pass Road, Monument Boulevard and Concord Avenue.
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