A tanker overturned on the Richmond Parkway overpass above Interstate Highway 80 Thursday morning, causing the spilling of liquid asphalt and prompting a hazardous materials response, Richmond city officials said.
The crash was initially reported shortly before 5:15 a.m.
The California Highway Patrol also responded and has closed the Richmond Parkway off-ramp from eastbound Highway 80. The ramp could be closed into the afternoon hours, CHP and city officials said.
Richmond Parkway is also closed between Blume Drive and the Pinole Vista Crossing shopping center, according to the city.