Three separate traffic incidents were snarling major Bay Area highways Monday afternoon, with significant lane blockages reported on Interstate 80 in the East Bay and U.S. 101 in Marin County and San Francisco.
An overturned vehicle was blocking the two right lanes of westbound Interstate 80 just east of San Pablo Dam Road at 3:30 pm., according to Caltrans District 4. The agency said traffic was backed up to just east of El Portal Drive near Richmond and San Pablo.
The lanes reopend around 4:10 pm., but Caltrans advised motorists to expect significant delays…