The travel portion of I-91 Southbound was closed for six hours after a single tractor-trailer truck rolled over near mile marker 48 in Weatherfield VT just before 10:30 am.on Monday. Police say the driver, Benjamin Hayes, 58 of Claremont NC was driving south on I-91 when he went into a coughing fit. Although Haynes attempted to pull into the breakdown lane to stop, he traveled off the road and Freightliner tractor-trailer went down an embankment before rolling on its side. No injuries were reported. The Springfield Fire Dept., Ascutney Fire Department, Golden Cross Ambulance, and Reed Towing also responded to the scene.