FALL OF ROOF OR BACK at KenAmerican Resources Inc
A roof fall occured in the 1 South Mains, #9 entry, starting in the middle of the intersection of crosscut #36 and ending in the middle of the intersection of crosscut #37. The fall measured approximately 80'X19'X6'. The area was supported with 6' tension rebar bolts. An undetected slip and dripping water was determined to be the cause of the fall.
U.S. Mine Safety and Health Administration