Rescue crews responded to a call of a roll-over accident with entrapment on the northbound SR-49 exit ramp off eastbound I-94 around 3:30 Friday afternoon.  The crash closed all eastbound lanes for about 40-minutes causing a five mile back-up, while crews worked on the scene.  Traffic tipsters were still reporting a residual backup at 5pm, with several drivers choosing the Indiana Toll Road and US-20 as alternates.