An unintentional roof fall has occurred at xc 3 on the 8th 48 travelway, entry #6. We are not cleaning this fall up, we stepped the travelway over. The area that fell was approximately 20' x 20' and was bolted with 72"" tension rebar roof bolts. The affected area was re-supported with 84"" bolts, brow bars, cribs, props and timbers.