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Case study · MSHA Record #220112650027
Ledgeman/Hand fatality
September 7, 2011 at 6:50 AM
Kensington
· Coeur Alaska Inc
· Juneau County, AK
Investigator narrative
The investigation is not complete, but as of now it appears a miner was fatally injured when material that traveled through a borehole struck him after a blast was initiated. The victim was on the 1290 level ramp waiting for a blast to be initiated. The concussion from the explosion traveled through a 3-inch borehole, blowing small rock and debris onto the victim.
Record details
- Classification
- EXPLOSIVES AND BREAKING AGENTS
- Accident type
- Struck by flying object
- Activity at time
- Blasting, Shoot Coal
- Subunit / location
- UNDERGROUND
- Underground location
- LAST OPEN CROSSCUT
- Mining method
- Other
- Source of injury
- BROKEN ROCK,COAL,ORE,WSTE
- Nature of injury
- MULTIPLE INJURIES
- Body part affected
- HEAD,NEC
- Total mining experience
- 1 year
- Experience at this mine
- 1 year
- Experience in this job
- 1 year
- Mine type
- Underground
- Sector
- Metal/Non-Metal
Similar incidents in MSHA records
· same classification: EXPLOSIVES AND BREAKING AGENTS
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March 5, 2025 · Calhoun Quarry Inc · IL · Prep Plant Foreman
The detonator had a dead battery. In order to set off the shot, employee brought up a loader. The loader battery was used to set the shot off. Employee was unable to be inside the shelter provided for blasting.
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March 22, 2016 · Martin Marietta Materials Inc. · IA · Outside Foreman
On March 22, 2016 at approximately 6:35pm an employee was struck by flyrock after a shot was detonated. The employee was sitting inside of a pickup approximately 1,200 feet away from the shot when detonated. This incident resulted in a fatality.
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December 4, 2013 · Bayer Construction Company, Inc. · KS · Outside Foreman
Individual was hit by fly rock while setting off a shot.