On January 29th, 2019, at approximately 1:05 p.m. the Merced CHP Communications Center received a call of a two-vehicle head-on collision on South State Route 49 north of Wass Road in Mariposa County.

Officers from the California Highway Patrol (Mariposa Area) were dispatched to the scene to conduct a traffic collision investigation. The initial investigation found 64-year-old Harold S. Treadway driving a 1999 Volvo 3-axle refuse compactor truck traveling northbound on SR South 49, north of Wass Road in a downhill straight-away approaching a sweeping left-hand curve approaching the curve.

The 83-year-old driver of the 2014 Subaru Forester was traveling Southbound on SR 49 North of Woodland drive through a sweeping left-hand curve approaching the Volvo truck, as the Subaru continued through the curve for unknown reasons, the driver of the Subaru allowed the vehicle to swerve to the left, crossing the double yellow center line and collided head-on with the Volvo.

The driver of the Subaru was pronounced deceased on scene. It does not appear Alcohol and /or drugs were a factor in this collision.