A highwall measuring approx 150' long, 180' high, & 75' wide collapsed resulting in fatal injuries to 2 miners that were working beneath the highwall. One was operating an excavator & the other was operating a bulldozer. Examination of the remaining highwall indicates the highwall failure originated at the toe of the columnar section above the Pittsburgh Big Vein coal seam.
Tri-Star Mining Inc operator
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This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.Top causes
- FALL OF FACE/RIB/PILLAR/SIDE/HIGHWALL 2 fatalities
- SLIP OR FALL OF PERSON 12 non-fatal
- POWERED HAULAGE 6 non-fatal
- HANDLING OF MATERIALS 5 non-fatal
- HANDTOOLS (NONPOWERED) 2 non-fatal
- MACHINERY 2 non-fatal
Incident timeline
Mines on record
- Job #3 MD
Fatalities under this operator
2 recordedA highwall measuring approx 150' long, 180' high, & 75' wide collapsed resulting in fatal injuries to 2 miners that were working beneath the highwall. One was operating an excavator & the other was operating a bulldozer. Examination of the remaining highwall indicates the highwall failure originated at the toe of the columnar section above the Pittsburgh Big Vein coal seam.
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The full compliance file on Tri-Star Mining Inc
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