All lanes of northbound Interstate Highway 680 in Sunol are blocked by an overturned big rig this morning, according to the California Highway Patrol.
Just after 5 a.m., the CHP received a report of a big rig that had flipped onto its side on northbound I-680, just north of Andrade Road.
The condition of the driver has not been released, but an ambulance is responding to the site of the collision, according to the CHP.
The CHP issued a Sig-alert at 5:17 a.m. and advised motorists to avoid the area until at least 7:30 a.m., as the overturned tractor-trailer is blocking all lanes of traffic.
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