At 1715 Engine 9 was dispatched with the Carrollton VFD to a reported accident with injuries on Longview Dr in the area of Oliver Dr.  Carrollton 104 (Oliver) was the initial arriving unit reporting a single vehicle off the roadway.  The vehicle was reported to have rolled coming to rest in a swamp about 15 ft below the road.  The vehicles occupant was out on arrival.  Engine 9 arrived and handled pt care.  Carrollton Squad 10 arrived  and handled the transport.  E9 cleared per command.  This call followed a 3 vehicle accident on Godwin that was handled by E9 and M9a.  E29 responded to a medical assist while crews were committed on the Longview accident.