The Dodge County Sheriff’s Office responded to a commercial motor vehicle crash on U.S. Highway 151, northbound at State Highway 26 in Chester Wednesday morning, January 28 at 6:15 a.m.

A 61-year-old man from Marshall was operating a tractor-trailer heading northbound on U.S. 151, when the vehicle left the roadway to the left, struck a guardrail and overturned. It blocked both northbound lanes.

U.S. 151 northbound is closed, at the time of this story, between the State Highway 26 off-ramp and on-ramp. Traffic is being detoured off the highway and immediately back on at this location. Motorists may experience minor delays and possible backups while crossing State Highway 26. This detour is expected to last for a lengthy period of time, as the vehicle will need to be offloaded before it can be removed.

The Waupun Fire Department, Waupun Police Department, Dodge County Emergency Response Team, Dodge County Highway Department, Wisconsin Department of Transportation and Wisconsin State Patrol are assisting at the scene.

The crash remains under investigation by the Dodge County Sheriff’s Office.