All lanes have reopened on westbound Interstate Highway 580 in
Pleasanton after a big rig overturned earlier this morning, according to the California Highway Patrol.
The collision, located near the connector ramp with northbound
Interstate Highway 680, was reported at 1:51 a.m. and blocked traffic until about 6 a.m., according to the CHP.
According to the CHP, the big rig spilled oil and diesel fuel onto
the pavement during the collision.