9-7-2011 at 13:39 McAdoo Engine 49-15 and BLS 920 dispatched to I-81 MM 138 South for a MVA. Crews arrived on scene on the on ramp south 81 and found a TT on its side. Upon investigation found to be a tanker truck hauling anhydrous ammonia. Crews keep the proper distance from the vehicle and closed the on and off ramp down. The company that owned the truck sent a team to the scene to assist. Three cranes and a rigging crew were called to the scene to upright the trailer in a safe manner. The driver of the vehicle was taken to HGH. Crews were on scene for 11 hours.