The crash was at about 6:15 am Tuesday on the Highway 41 transition to Highway 99.
The California Highway Patrol says a 22-year-old man was driving south just after midnight when he went off the road and ended up slamming into a bridge pillar.
Because of the crash location, officials say the car and victim inside remained out of sight.
The driver died at the scene.
Investigators believe the driver may have fallen asleep at the wheel.
There is no suspicion of alcohol or drugs.
Investigators say the vehicle went off the road and crashed into a bridge pillar.