Both sides of Pacheco Boulevard at Highway 4 has been shut down after a major accident on Thursday afternoon.
A car hit a pole just before 4 p.m., PG&E said. The accident caused a power outage in the area.
Power has been restored to all but 16 customers. Nearly 5,000 customers were without power.
There is no estimated time of the road reopening.
Drivers are asked to use alternate routes.
PG&E will be working throughout the night to fix the issue.
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