Mining Incidents

Martin Marietta Materials, Inc.Operator

Controlled by Martin Marietta Materials Inc
MSHA Operator ID: L16197
Fatalities
10
Total incidents
1,384
Mines on record
200
Years on record
2000–2026

Safety benchmark

Recorded fatalities relative to other operators with a fatal MSHA history. Percentile is computed across the 739 operators with at least one recorded fatality.

Fatality-count percentile
99th

More recorded fatalities than 99% of operators on file.

Rank
#6of 739

Position when operators are sorted by recorded fatalities.

Vs industry mean
6.2×

Industry mean: 1.6 fatalities per fatal-history operator.

This operator
10
Industry mean
1.6
Industry median
1
Peers at similar incident volume

Methodology: percentile and rank computed across MSHA operators with at least one recorded fatality. Industry mean is the average across that same population. Peers are sampled by closest total-incident count, regardless of fatality outcome.

For counsel + compliance teams

Get an email the moment a new MSHA-reportable accident lands at any mine on file under Martin Marietta Materials, Inc.. Useful for 105(c) defense intake, FMSHRC docket prep, and active client monitoring.

Top causes

  • POWERED HAULAGE3 fatalities · 74 non-fatal
  • SLIP OR FALL OF PERSON1 fatality · 201 non-fatal
  • MACHINERY1 fatality · 86 non-fatal
  • OTHER1 fatality · 60 non-fatal
  • ELECTRICAL1 fatality · 11 non-fatal
  • EXPLOSIVES AND BREAKING AGENTS1 fatality · 4 non-fatal

Incident timeline

2026
7
2025
47 (1f)
2024
52 (2f)
2023
47
2022
44
2021
49
2020
49 (1f)
2019
63
2018
49
2017
50
2016
73 (1f)
2015
49
2014
45 (1f)
2013
62
2012
56 (1f)
2011
66
2010
58 (1f)
2009
49
2008
72
2007
13

Mines on record

Fatalities under this operator

10 recorded
Caught in, under or between running or meshing objects

Employee was found entangled in conveyor 12 tail pulley. Responding authorities pronounced the employee deceased. Incident is still under investigation.

Caught in, under or between a moving and a stationary object

Employee was fatally injured while working on a conveyor system.

Drowning

Based on investigation to date, employee suffered a personal medical event (cardiac arrest). ""Per Prelim: After washing a concrete pad, a miner drowned in a two-foot-deep pool of water.""

Struck by falling object

Customer driver was found unresponsive outside the customer's truck. Cause of death is unknown.

Struck by flying object

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.

Fall from machine

Emp a contract worker repairing a Scaler in Mod 12. The emp had fallen to the ground in fetal position, locked arms, clenched fist and bleeding from the ears. The witness did not know if the emp fell from a height or ground level. The injured emp was airlifted. He was lacking oxygen to brain for 10 minutes. He was pronounced dead at 9:45AM on Feb 28.

Struck against a moving object

Forklift turned over - The miner was operating a forklift, traveling on a decline toward the mine entrance, when the forklift went out of control. The forklift struck a concrete support for the belt conveyor and overturned, killing him.

Flash burns (electric)

The investigation into the accident is on-going, but as of now, it appears as the three employees were installing ground vault indicator lights when an ach flash occurred, injuring them. The employees were transported to the hospital.