Units were dispatched to I-270 @ Monocacy River for report vehicle accident with entrapment and one ejected. Ambulance 319 on scene reporting single vehicle with one patient still inside, E-311 on scene advised no entrapment. After a quick patient assignment EMS requested the patient be flown to trauma center. Trooper was requested and patient was taken to Baltimore Shock trauma. After a cleanup of the scene, Units were placed in service.