At approx 1430 hrs Squad 13 BLS 1396 and Squad 27 BLS 946 dispatched to Rt 295 SB in the area of 31.1 MM for a MVA. NjSP and DOT also dispatched. Squad 13 and 1396 reporting a MVA blocking all local lanes SB. Camden County added Medic 44 and Rescue 13. Positive entrapment.