4-Vehicle Crash Snarls Traffic On 680 Northbound: CHP

SAN RAMON, CA — A crash involving at least four vehicles on northbound I-680 between Crow Canyon and Sycamore Valley Road closed three out of four lanes and led to heavy traffic, according to the California Highway Patrol.

At around 8:33 a.m. Wednesday, at least four cars collided, scattering debris across the freeway, according to the CHP log. Three of the lanes were blocked until 9:26 a.m.

One party refused medical aid, and other injuries are unknown, according to the log.

Heavy traffic remains on northbound I-680 near Sycamore Valley Road as of 10 a.m., according to 511.org.