A Grover Beach man is dead after a crash occurred along Highway 166 overnight in Santa Maria.
California Highway Patrol officers responded to the crash on Highway 166, west of Alamo Creek Road just before 1 a.m. on Monday.
Officers found one car partially blocking the westbound lane.
The car had sustained rollover damage and officers found a 56-year-old man from Grover Beach unresponsive inside the car. Officials say he was not wearing a seat belt.
CHP officials say physical evidence indicated that the car had traveled up an ascending embankment to the north of the roadway and overturned before coming to a stop on its wheels.
The man was pronounced dead at the scene and his impairment is being investigated.