Highway 174 in St. Clair County was closed this afternoon as emergency personnel responds to a wreck that led to a hazardous materials spill. Pell City Fire Chief Tim Kurzejeski said the department received a call at 12:39 p.m. Monday to deal with a hazmat response related to a wreck on 174 between Wattsville and Odenville. Kurzejeski said a two-vehicle accident involving an 18-wheeler and a service truck caused the 18-wheeler to roll over an embankment and slide into a nearby creek. The 18-wheeler was transporting electrical transformers and the accident caused transformer oil and diesel fuel to leak into the creek. Kurzejeski said the spill is contained and a cleanup team has been dispatched. Both drivers were assessed on the scene and were not injured, according to Kurzejeski.