A tree fell on power lines and a minivan on Highway 29 south of Robert Louis Stevenson Park on Tuesday morning, about three miles north of Tubbs Lane, according to a witness and the Calistoga Fire Department which responded to the incident at 7:35 a.m.
Live power lines fell on the roadway, which was closed for about 15 minutes before one lane reopened, Calistoga Fire Capt. Kris Breiner said. Traffic was reduced to one lane for about two hours.
The front of the minivan was crushed, its windshield damaged and its roof caved in, a witness said.
A passenger trying to move the tree suffered chest pains and was transported out of precaution to a hospital, according to the California Highway Patrol.
Fire crews left the scene at about 9:15 a.m.
This story has been modified with updated information since first posting.