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A semi truck is on its side on the ramp from southbound U.S. 23 to eastbound M-14 Monday afternoon. The crash caused a hazmat situation.

(Courtesy photo)

Southbound U.S. 23 at M-14 will be closed at least into Tuesday morning, according to a press release from the Michigan State Police.

A semitrailer rolled over on the highway Monday afternoon leading to a hazardous material spill on the site.



The release from the state police, issued at approximately 5:45 p.m. Monday, said that the highway would be closed to southbound traffic for “approximately the next 12 to 20 hours.”

The Michigan State Police provided the following information on traffic patterns that will be operational until the stretch of highway is reopened:

Traffic headed south on US-23 is being diverted onto North Territorial Road to avoid the accident. Vehicles on M-14 traveling eastbound have the option to continue east and remain on M-14 or continue south. However, traffic is not allowed to travel north from eastbound M-14 onto US-23.

Traffic traveling on northbound US-23 can continue north and traffic on M-14 westbound is able to continue west on M-14 or north on US-23.

State police representatives in Lansing said they were unable to comment on what the substance was that had spilled on the roadway.

Huron Valley Ambulance spokeswoman Joyce Williams said in an email that the ambulance service had evaluated two patients at the scene of the accident but did not transport anyone to area hospitals. HVA is remaining on the scene for medical support to the hazmat team, Williams said.

Ben Freed is a general assignments reporter for The Ann Arbor News. Email him at benfreed@mlive.com and follow him on twitter at @BFreedinA2. He also answers the phone at 734-623-2528.