Outside Foreman, Leadman fatality

March 22, 2016 at 6:45 PM

Earlham Quarry · Martin Marietta Materials Inc. · Madison County, IA

Investigator narrative

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.

Record details

Classification: EXPLOSIVES AND BREAKING AGENTS
Accident type: Struck by flying object
Activity at time: Observe Operations
Subunit / location: STRIP, QUARY, OPEN PIT
Source of injury: BROKEN ROCK,COAL,ORE,WSTE
Nature of injury: CRUSHING
Total mining experience: 6.77 years
Experience at this mine: 0.52 years
Experience in this job: 0.52 years
Mine type: Surface
Sector: Metal/Nonmetal

Similar incidents in MSHA records· same classification: EXPLOSIVES AND BREAKING AGENTS

March 5, 2025 · Calhoun Quarry Inc · IL · Prep Plant Foreman, Supervisor, Mill Plant Supervisor, Kiln Supervisor
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.
December 4, 2013 · Bayer Construction Company, Inc. · KS · Outside Foreman, Leadman
Individual was hit by fly rock while setting off a shot.
November 17, 2013 · Star Mine Operations, LLC · CO · Utility Man, Errand Boy, Service Truck Operator
Employee went back to check on a post blast and became overcome by Carbon Monoxide from powder smoke. Carbon Monoxide