The woman was involved in a crash on Highway 180 near Cornelia in Fresno County at about six o'clock Tuesday morning.
The California Highway Patrol said she was injured when the driver of a pickup truck didn't see her car and made a left turn against on-coming traffic. The two cars collided, causing the SUV to flip.
Barrett Metheny said he was heading to work when passed by the collision seconds after it happened.
"I was coming down Cornelia Street and I heard a crash and I saw a car flipped over on its side," he said.
That's when he said he pulled over to help.
"There was a lot of people standing around, but not too many people actually doing too much so I got out of my car, ran across the Whitesbridge Freeway and I heard a girl kind of crying and screaming and the car was smoking a little bit," he said.
When he got to the car, he said the woman was frantic, in shock and unable to get out so he and another man worked together to pull her free.
"Once I saw one guy pick something up to try and break the window and I could tell he wasn't able to break it so I was looking in my pockets and trying to find something to break the window with and then I remembered I had my skateboard in my trunk."
Metheny said he grabbed the skateboard from his car and used the wheels to shatter the rear window.
"I had to clear out a few things before she could get out and then I grabbed her and made sure she got over the glass safely and we kind of escorted her away from the car crash," he said.
At this point, more than a dozen people stopped their cars to help so Metheny said he left the woman in their care until help arrived.
"I wish I could've stayed longer, but I was running late," he said.
His boss at solar city said the whole ordeal caused him to be about thirty minutes tardy to work.
"I was going to write him up this morning until I found out why he was late. You know?" said David Smoljan.
He later commended him for a job well done.
"Pretty amazing actually. He's a good guy so I could see him doing something like that," he added.
The CHP said the woman complained of back pain, but suffered minor to moderate injuries. The driver of the pickup was not injured.