Company 20 and 14 units where dispatched to RT340 in the area of Lander Rd for vehicle accident with entrapment MSP on scene. Company 20 units went on scene with one on its top with one patient still inside. Chief 20 went on scene shortly after and placed Co. 14 in service. Patient Was extricated through the window by RS20 and E201's crew. Patient was placed into Medic 209 and transported to Washington County Trauma Center. Units clear shortly after.