Power has been fully restored to all of the approximately 26,000 PG&E customers in the San Ramon Valley who were affected by an outage that spanned nearly four hours for some Thursday morning, according to a PG&E spokeswoman.
The power went out at homes and businesses in the affected areas of San Ramon and Danville at 7:19 a.m., according to PG&E spokeswoman Tamar Sarkissian.
The outage led to San Ramon police closing Crow Canyon Road in both directions at Alcosta Boulevard until about 10:15 a.m.
It also knocked out power to 16 of the San Ramon Valley Unified School District's 36 schools, with Danville's Creekside Elementary the last to have power restored, according to the district.
Power was restored to all customers at 9:45 a.m., but crews very soon took about 6,900 customers out of service for necessary repairs associated with the outage, according to Sarkissian. Those remaining customers had their power restored by 11:04 a.m., she added.
PG&E investigators determined the outage was caused by an equipment failure on its transmission system near where Crow Canyon Road meets the Iron Horse Regional Trail, according to Sarkissian.
"We appreciate our customers' patience. We know it was an inconvenience," she said. "Providing safe and reliable service is our top priority."
Editor's note: Information from the Bay City News Service was used in this report.