Traffic was briefly slowed on Interstate Highway 680 in Alamo this morning by a major-injury crash that blocked two lanes, a California Highway Patrol officer said.
The two-car crash happened at about 9:30 a.m. just north of Livorna Road, Officer Kevin Bartlett said.
The CHP issued a Sig-alert at about 9:50 a.m. because the crash blocked the two rightmost lanes. The alert was canceled at 10:17 a.m.
The CHP and the San Ramon Valley Fire District responded, he said.