A Friday night crash on Colorado Highway 64, about four miles east of Dinosaur in Rio Blanco County, resulted in the spill of hazardous material, the Colorado State Patrol reported Sunday in a news release.
The crash occurred about 7:45 p.m., near mile post 6, a rural area of Rio Blanco County.
A 2012 Volvo tractor driven by Roy Dunker, 55, of Clifton, was traveling west on the highway when he failed to negotiate a curve to the right and his truck and trailer rolled over on the driver's side.
The truck and trailer came to a rest off the south side of the roadway in a shallow ditch, the state patrol reported.
Dunker, troopers stated, was hauling a dry box trailer with sodium hydroxide, and during the crash an unknown amount spilled into a shallow area off the south side of the highway.
Dunker was operating the truck for Knight Transportation.
The driver had minor injuries in the rollover and was treated and released from Rangely District Hospital.
Clean-up crews worked through Friday night and into Saturday morning to remove the tractor, trailer and load from the scene.
Highway 64 was closed from the time of the crash until about 2 p.m. Saturday.
Traffic was detoured through the area using Blue Mountain Road (Rio Blanco County Road 1) after road closures were put in place east of Dinosaur and west of the Blue Mountain Road turnoff.
The state patrol is investigating the crash, and excessive speed is believed to be a contributing factor.
Agencies assisting the state patrol were Rangely Fire/EMS, the Craig Hazardous Materials Team, Rio Blanco County Sheriff's Office, Moffat County Sheriff's Office, Colorado Department of Transportation and Rio Blanco Road and Bridge Department.
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