A snow plow crashed Thursday afternoon on Wyoming Highway 220, leading to the closure of a 40-mile stretch of road between Alcova and Muddy Gap.
The Wyoming Department of Transportation plow rolled onto its side near milepost 53, according to a department spokesman. Afterward, two semitrailers also crashed while attempting to stop at the scene.
The WYDOT spokesman said a large amount of brine and sand spilled from the plow. No injuries were reported.
Traffic was halted in both directions until crews could clear the scene. WYDOT estimated the highway would remain closed until 8 p.m.