FALL OF ROOF OR BACK at The Monongalia County Coal Company
An unplanned roof fall was discovered on Main North 2 belt at the 35 block intersection. The fall was approximately 16' wide, 25' long and 6' high. The fall was most likely caused by gradual deterioration of the mine roof. No problems with mining machines, PPE, training or compliance issues.
U.S. Mine Safety and Health Administration