SANTA CLARA (CBS SF) — About 2,200 Santa Clara residents and several major traffic signals lost power this evening when a tree fell on wires as well as a car, Silicon Valley Power officials said.

The tree fell at Scott Boulevard and Monroe Street sometime before 5:45 p.m., causing outages at traffic signals on Scott between El Camino Real and Martin Avenue.

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Crews are working to isolate the damaged section. Silicon Valley Power spokesman Larry Owens said most customers would likely have power again by 7:30 p.m.

In San Jose, an estimated 8,252 PG&E customers lost power between 4 p.m. and 4:30 p.m., according to PG&E spokeswoman Abby Figueroa.

One outage was thought to have been caused by a tree, but the cause of the another outage was still being determined Wednesday night. Crews were on site at both locations, Figueroa said.

PG&E estimates that service will be restored for affected customers on Wednesday evening.

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As of 10:15 p.m., the entire South Bay still had about 1,840 PG&E customers without power.