Mining Incidents
Fatality · MSHA Record #220231070004

Miner

April 11, 2023 at 10:35 AM
Galena · Underground · Metal/Non-Metal
Shoshone County, ID
Classification FALL OF ROOF OR BACK
Type Struck by falling object
Investigator narrative
Miner was working in the 3200-033 raise. EE was bolting the hanging wall. A large wedge slipped off the wall and pinned the Miner to the foot wall causing fatal crushing injuries.
Final MSHA investigation
On April 11, 2023, at approximately 10:35 a.m., Blaik Nutting, a 26 year-old stope miner with over five years of experience, died when a 20 to 25-ton rock from the hanging wall fell and struck him. The accident occurred because the mine operator did not: 1) design, install, and maintain ground support to control the ground in places where miners work or travel to perform their assigned tasks, and 2) conduct adequate ground condition examinations in areas where work was to be performed.
Root causes
  1. The mine operator did not design, install, and maintain ground support to control the ground in places where miners work or travel to perform their assigned tasks.

    Corrective action: The mine operator updated the ground control plan to include ground support in narrow stope mining. The revised ground control plan contains additional information about proper installation, spacing, and maintenance of ground support bolts and stulls. The mine operator revised their training plan and trained miners on these changes.

  2. The mine operator did not conduct adequate ground condition examinations and testing in areas where work was to be performed.

    Corrective action: The mine operator retrained their designated persons on what constitutes proper and thorough ground condition examinations and testing.

Read the full report (PDF)

Findings from MSHA's final investigation report, which supersedes the preliminary narrative above.

Record details
Activity at time of incident
Roof Bolter, Nec
Subunit / location
UNDERGROUND
Underground location
VERTICAL SHAFT
Mining method
Conventional Stoping
Accident type
Struck by falling object
Source of injury
CAVING ROCK,COAL,ORE,WSTE
Nature of injury
CRUSHING
Body part affected
TRUNK, MULTIPLE PARTS
Total mining experience
5 years
Experience at this mine
5 years
Experience in this job
2 years
Degree of injury
FATALITY
Verify on MSHA

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Source: US Mine Safety and Health Administration (MSHA) · Document 220231070004 · Mine ID 1000082 Trainer view →