An unitentional roof fall occured on the 4C travelway at 49 crosscut station 13+30 entry #7. The fall did not affect ventilation or cause personal injury. The fall was in the secondary escapeway but their are 2 entries and the escapeway was rerouted to the other entry. The area had been bolted with 6 foot fully grouted roof bolts. The fall measured 25'x 18'x8'high.