Update: traffic has reopened to one lane as of 4:50 pm.
SAN RAMON – A HAZMAT incident closed westbound Bollinger Canyon Road for about two hours as crews attempted to plug a broken gas line Friday.
At around 3:00 pm Friday afternoon, firefighters with the San Ramon Valley Fire Protection District were dispatched to a report of a broken gas line in front of Brookdale San Ramon on the 18800 block of Bollinger Canyon Road.
Crews arrived and found that a 4-inch gas line had been ruptured. PG&E and county health officials were immediately notified of the incident.
Police closed westbound Bollinger Canyon Road at Crow Canyon Road into the Bollinger Canyon, adjacent to Las Trampas.
In a tweet, the City of San Ramon said the break was caused by crews from Independent Construction doing grading near the road.
According to one parent, hundreds of kids were stuck at the Little Hills day camp on Bollinger Canyon Road. Brookdale San Ramon, a senior living facility, is located directly next to the incident site.
Independent Construction was grading near Bollinger and hit a PG&E gas line.
May need evacuation in the area. SRV Fire is onsite. pic.twitter.com/7pHvZxANSZ
— City of San Ramon (@CityofSanRamon) June 23, 2017
— San Ramon Police (@sanramonpolice) June 23, 2017