MORAGA -- Police are asking motorists to avoid St. Mary's Road until at least 10:30 a.m. due to an overturned big rig.
The crash took place Tuesday morning near the intersection of St. Mary's Road and Bollinger Canyon Road, according to information from Moraga Police.
The intersection will be closed to traffic in both directions between Rheem Boulevard and Rohrer Drive.
Injuries were not immediately known.
Check back for updates.