On Saturday, March 10, 2012, at approximately 6:15 p.m., a 34-year-old section foreman with 11 years of experience was killed while operating a continuous mining machine in the No. 2 entry. He was struck by a section of rock that fell from the right-hand rib. The rock was approximately 10 feet and 6 inches long, 3 feet and 4 inches high, and 10 inches thick.
Best Practices
- Conduct thorough pre-shift and on-shift examinations of the roof, face, and ribs. A thorough exam must be conducted before any work or travel is started in an area and thereafter as conditions warrant.
- Support any loose roof or rib material adequately or scale loose material before working or traveling in an area.
- When hazardous roof or rib conditions are detected, areas should be dangered-off until they are made safe.
- Rib bolts, installed on cycle and in a consistent pattern, provide the best protection from rib falls.
- Assure that the Approved Roof Control Plan is followed and is suitable for the geologic conditions encountered. If adverse conditions are encountered, the plan must be revised to provide adequate support for the control of the roof, face, and ribs.
Click here for: MSHA Preliminary Report (pdf), MSHA Investigation Report (pdf).