There are reports of more falling concrete on the Richmond-San Rafael Bridge.
The California Highway Patrol says a woman was driving eastbound on the bridge just west of the county lines when the concrete struck her car.
RELATED: Caltrans repairs Richmond-San Rafael Bridge after more concrete falls from upper level
The bridge is open but traffic is backed up.
Emergency repairs on the bridge resumed last week after more concrete fell following a February incident.
More concrete falls from Richmond-San Rafael Bridge, strikes car
RICHMOND-SAN RAFAEL BRIDGE CONCRETE CLOSURE