Sand and Gravel

MNM Fatality – 9/8/25

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A contract haul truck driver was injured while dumping a load of material at the top of a stockpile. The ground under the truck failed causing the truck to overturn onto its cab. The driver died later from his injuries.

Best Practices

  • Construct substantial berms, bumper blocks, safety hooks, or similar impeding devices at dumping locations where there is a hazard of overtravel or overturning.
  • Conduct workplace and ground condition examinations before beginning work in an area.
  • Always dump material from a stable and safe location.  If examinations indicate the ground conditions are not reliable, dump loads at a safe distance and push the material over the edge using a bulldozer.
  • Never load material from the toe of a stockpile that is below an active dump point.  This typically leads to a slope that is unstable and too steep.
  • Maintain stockpile slopes no steeper than the angle of repose.

Additional Information

This is the 22nd fatality reported in 2025, and the ninth classified as “Powered Haulage.”

Click here for: Preliminary Report (pdf)

MNM Fatality – 8/7/25

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On August 7, 2025, a contractor died after the front-end loader he was operating traveled over the edge of a highwall, falling approximately 70 feet.

Best Practices

  • Maintain control of self-propelled mobile equipment while it is in motion.
  • Never attempt to enter or exit an out-of-control vehicle.
  • Ensure miners are adequately task trained in the safe operation of assigned equipment.
  • Perform regular pre-operational examinations of mobile equipment.
  • Monitor work activities to ensure both miners and contractors follow safe work procedures.

Additional Information

This is the 18th fatality reported in 2025, and the seventh classified as “Powered Haulage.”

Click here for: Preliminary Report (pdf)

MNM Fatality – 6/15/25

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On June 15, 2025, a miner died after the telehandler that he had been operating overturned onto him while he was outside the equipment moving a water pump suction line.

Best Practices

  • Ensure miners operate telehandlers perpendicular to the slope and use load stabilizing devices to prevent roll over.
  • Keep telehandler forks low to the ground unless the surface is level and ground conditions can support the telehandler.  Never suspend a load from the forks.
  • Always lower booms on equipment when unattended and secure the equipment against movement.
  • Do not exceed the load radius and load limits of lifting equipment.
  • Do not work alone unless you can communicate with others or they can see you.
  • Ensure miners position themselves in a safe manner while working around equipment.
  • Conduct inspections of mobile equipment prior to use.  If deficiencies exist, remove the equipment from service.

Additional Information

The information provided in this notice is based on preliminary information only and does not represent final determinations regarding the nature of the accident or conclusions regarding the cause of the fatality.

Click here for: Preliminary Report (pdf)

MNM Fatality – 5/1/25

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On May 1, 2025, an excavator operator died after material from a tailings cell engulfed the excavator he was operating. At the time of the accident, the excavator operator was loading dry material into two haul trucks.

Best Practices

  • Establish and follow ground control procedures that are consistent with prudent engineering design for the safe control of all highwalls, pits, spoil banks and any area where miners will be working below a tailings or water storage cell.  
  • Examine highwalls, banks, and other areas that slope into working areas after every rain, freeze, or thaw and before miners begin work in such areas.
  • Stay clear of potentially unstable areas.  Document and correct unsafe ground conditions in the affected area.
  • Equip excavators with two-way communication systems, high-strength glass, light sticks, cooling packs, and a breathable air device when working on material that has the potential to slide or engulf mobile equipment.

Additional Information

This is the 12th fatality reported in 2025, and the second classified as “Falling, Rolling, or Sliding Rock or Material of Any Kind.”

The information provided in this notice is based on preliminary information only and does not represent final determinations regarding the nature of the accident or conclusions regarding the cause of the fatality.

Click here for: Preliminary Report (pdf), Final Report (pdf).

MNM Fatality – 3/28/25

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On March 28, 2025, a miner was fatally injured at a surface mine when sand from the highwall engulfed the front-end loader he was operating.  The miner was digging sand from the toe of the highwall.

Best Practices

  • Use mining methods that ensure highwall stability and safe working conditions.
  • Use appropriate equipment to gradually flatten the slope starting at the top of the highwall.
  • Equip front-end loaders with two-way communication systems, high strength glass, and an SCSR for breathable air when working on material that has the potential to slide or engulf mobile equipment.
  • Examine highwalls, spoil banks, and ground that slope into working areas.  Correct unsafe ground conditions in the affected area.  Conduct additional examinations as ground conditions warrant, especially during periods of changing weather conditions.
  • Stay clear of potentially unstable areas.
  • Establish and discuss safe work procedures before beginning work.  Identify and control all hazards associated with the work and the methods to properly protect miners.
  • Train miners to assess risks and hazards and correct or barricade hazards to prevent access before beginning work activities.

Additional Information

This is the 11th fatality reported in 2025, and the fifth classified as “Powered Haulage.”

Click here for: Preliminary Report (pdf), Final Report (pdf).

MNM Fatality – 1/30/25 sand

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On January 30, 2025, a miner died when he became entangled in a log washer.  The victim was starting the log washer when he lost his balance and fell into the log washer. 

Best Practices

  • Ensure equipment and safety devices are maintained in safe working condition.
  • Ensure miners are clear and free from hazards when starting equipment and performing tasks.
  • Always use fall protection equipment, safety belts and lines or personnel lifts when working at heights and near openings where there is a danger of falling.
  • Lock Out and Tag Out machinery against hazardous motion.
  • Maintain equipment in accordance with manufacturer’s means to care for and service equipment.
  • Train miners in the recognition of hazards and safe work procedures.

Additional Information

This is the fourth fatality reported in 2025, and the first classified as “Machinery.”

Click here for: Preliminary Report (pdf), Final Report (pdf).

MNM Fatality – 1/3/25

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On January 3, 2025, a miner died when an excavated trench collapsed and engulfed him.  The victim was replacing a 12-inch discharge line in the trench when the wall collapsed.

Best Practices

  • Stay clear of potentially unstable areas.  Do not enter trenches if the trench walls are not properly supported for the full height or sloped to a safe angle.
  • Establish and discuss safe work procedures before beginning work.  Identify and control all hazards associated with the work to be performed and the methods to properly protect persons.
  • Follow OSHA Trenching and Excavation Safety Guidelines.

Additional Information

This is the first fatality reported in 2025, and the first classified as “Falling, Rolling, or Sliding Rock / Material of Any Kind.”

Click here for: Preliminary Report (pdf), Final Report (pdf).

MNM Fatality – 11/16/24

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On November 16, 2024, a miner died when he became entangled in a log washer.   The miner was last seen standing on a deck and using a water hose to wash material out of the log washer to clear a blockage. 

Best Practices

  • De-energize machinery and block moving machine parts from hazardous motion before conducting maintenance or repairs. 
  • Ensure miners are in a safe location before moving equipment and components.
  • Identify hazards associated with the task, review those hazards with all miners involved, and implement measures to protect miners.
  • Train all miners in the recognition of hazards and safe performance of tasks.

Additional Information

This is the 27th fatality reported in 2024, and the fourth classified as “Machinery.”

Click here for: Preliminary Report (pdf), Final Report (pdf).

MNM Fatality 4/15/24

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On April 15, 2024, a miner died when the tail section of a collapsible belt conveyor fell and pinned him between the tail section and middle section.  The miner was working as part of a crew to tear down the conveyor in preparation to be moved.

Best Practices

  • Block all equipment against hazardous motion before beginning work.
  • Stay clear of suspended loads.
  • Never enter or work in pinch points or Red Zones around equipment.
  • Identify hazards associated with the task, review those hazards with all miners involved, and implement measures to protect miners.
  • Train all miners in the safe performance of tasks.

Additional Information

This is the fourth fatality reported in 2024, and the third classified as “Powered Haulage.”

Click here for: Preliminary Report (pdf), Final Report (pdf).

MNM Fatality – 12/14/23 UT

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On December 14, 2023, a contractor died while delivering parts to the mine when an all-terrain telehandler pulling cable, tipped over, striking him.

Best Practices

  • Do not exceed the load radius and load limits of lifting equipment.
  • Ensure miners position themselves in a safe manner while working around equipment.
  • Barricade and sign affected areas in case equipment or loads fail or tip.
  • Ensure visitors entering the mine receive site specific hazard awareness training.
  • Maintain good communication between co-workers.

Additional Information

This is the 40th fatality reported in 2023, and the 16th classified as “Machinery.”

Click here for: Preliminary Report (pdf), Final Report (pdf).