🚗 Traffic · Contra Costa, CA (CHP)

Traffic Hazard

Sr4 E / San Marco Blvd Ofr

Reported Wed, 11 Nov 2026 19:36:00 UTC (2 h ago) · EB 4 JWO SAN MARCO BLVD · NEG ASSOC VEHS

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Source: California Highway Patrol incidents. This is what the agency published; it is not confirmed by us, and the location of a dispatch is often a block or an intersection, not an exact address.