Mining Incidents
Fatality · MSHA Record #220252410007

Haul/Off Road/Coal/Ore/Pit/Quarry/Rock/Rubber Tire Truck Driver

August 25, 2025 at 7:16 AM
Colt Rock and Lime, LLC - Scott City · Surface · Metal/Non-Metal
Scott County, MO
Classification POWERED HAULAGE
Type Struck against a moving object
Investigator narrative
Haul truck driver was going to pit to get loaded, traveled over berm, truck landed on cab in water
Final MSHA investigation
On August 25, 2025, at 7:20 a.m., Ethan Amberger, a 26-year-old haul truck operator with over 6 years of mining experience, died when the haul truck he was operating drove over a berm on the pit ramp, fell 39 feet, and landed with its cab submerged in water. The accident occurred because the mine operator did not: 1) ensure that operators of self-propelled mobile equipment maintain control of the equipment while it is in motion, 2) ensure that seat belts were worn in haul trucks, 3) provide signs warning of hazardous conditions on the pit ramp, and 4) construct a berm along an elevated roadway capable of moderating or limiting the force of the haul truck with regard to traveling over the bank of the roadway.
Root causes
  1. The mine operator did not ensure that operators of self-propelled mobile equipment maintained control of the equipment while it is in motion.

    Corrective action: The mine operator held training on maintaining control of mobile equipment along with updating company policy.

  2. The mine operator did not ensure that seat belts were being worn in haulage trucks.

    Corrective action: The mine operator held training on the use of seat belts along with updating company policy.

  3. The mine operator did not provide signs warning of hazardous conditions on the pit ramp.

    Corrective action: The mine operator installed signs for reduced speed, steepness, and curve in haul road.

  4. The mine operator did not construct a berm along an elevated roadway capable of moderating or limiting the force of the haul truck with regard to traveling over the bank of the roadway.

    Corrective action: The mine operator has reshaped the berms of the pit ramp roadway to have a steeper berm.

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
Haulage Or Dump Truck
Subunit / location
STRIP, QUARY, OPEN PIT
Accident type
Struck against a moving object
Source of injury
HGHWY ORE CARIER,LRGE TRK
Nature of injury
MULTIPLE INJURIES
Body part affected
MULTIPLE PARTS (MORE THAN ONE MAJOR)
Total mining experience
6 years
Experience at this mine
0 years
Experience in this job
6 years
Degree of injury
FATALITY
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Source: US Mine Safety and Health Administration (MSHA) · Document 220252410007 · Mine ID 2302459 Trainer view →