Mining Incidents

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Every injury and fatality MSHA has on file. Filter by state, year, sector, classification, experience, or any keyword from the investigator's narrative.

Total incidents
273,095
Of which fatal
1,202
Years on record
2000–2026
Classifications
20
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The record

491 total records

Showing 50 of 491
April 13, 2026 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
CalMat Co · Struck by falling object

While removing belts from a screen, a motor fell onto the left ring finger of the repairman, resulting in a 2cm laceration that required four stitches.

April 13, 2026 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Over-exertion (Not Elsewhere Classified)

On April 13, 2026, employee experienced a right elbow strain disconnecting a loader shroud. Employee attributed it to an awkward position while using an impact gun. Reported on April 16, 2026, received an initial first aid assessment . Due to ongoing pain, a medical evaluation on April 28, 2026, diagnosed medial epicondylitis, leading to modified duty.

April 1, 2026 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech OTHER
CalMat Co · Absorption of radiations, caustics, toxic and noxious substances

Mechanic reported being bitten by a wasp on EE's left wrist during a hooper area inspection. The following day, the employee presented with redness and swelling. Medical attention was sought, and antibiotics were prescribed.

December 8, 2025 CA · Metal/Non-Metal water truck operator POWERED HAULAGE
CalMat Co · Struck against a moving object

On 1/5/2026, management was notified of an alleged injury. The employee reported back pain as a result of operating the water truck.

September 18, 2025 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Struck by flying object

ON 9-22-25 EMPLOYEE REPORTED HAVING A FOREIGN BODY IN EE'S (R) EYE FROM TORCHING HOLES ON A NEW CLAD INSTALL ON 9-19-25. THE FOREIGN BODY WAS REMOVED IN THE EMERGENCY ROOM ON 9-22-2025. EE WAS PRESCRIBED EYE DROPS AND WAS RELEASED TO FULL DUTY SAME DAY.

June 13, 2025 CA · Metal/Non-Metal electrician, lineman SLIP OR FALL OF PERSON
CalMat Co · Fall onto or against objects

On 6/13/25 employee received medical treatment in ER for a reopening of a surgical incision. While employee was inspecting a trench, the tripped on leveling rake and fell on right knee, reopening a surgical incision from a personal knee surgery. Employee required surgery, was released from the hospital on 6/15/25, placed on restricted duty on 6/16/25 which is being accommodated

May 28, 2025 NM · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
CalMat Co · Over-exertion in lifting objects

On 05-29-25 employee alleges a strain to the left lower back when operating a CAT 769D haul truck. EE states that the initial left lower back strain occurred on 05-28-25. While the employee was attempting to move a pallet with a pallet jack. On 05-30-25 employee was treated by a MD for a strain to the left lower back, resulting in modified work activity.

January 15, 2025 CA · Metal/Non-Metal outside foreman, leadman SLIP OR FALL OF PERSON
CalMat Co · Fall from machine

Loader operator missed the last rung on the ladder while dismounting the loader, falling to the ground (Operator did not use three-points of contact, carrying pre/post-shift book in one of EE's hands).

December 6, 2024 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
CalMat Co. · Over-exertion (Not Elsewhere Classified)

On 12/6/24 EE experienced a first aid injury to their left ankle when they exited a step ladder. On 12/9/24 EE sought medical attention where they were given work restrictions.

December 5, 2024 CA · Metal/Non-Metal ball/rod/pebble/hand/limestone/dry mill operator, roller operator POWERED HAULAGE
CalMat Co · Struck against a moving object

Employee was operating a loader on the haul road when they drove over a 3" pothole. Employee states this cause their teeth to jar and lose consciousness for a second. After experiencing nausea, emergency medical services were dispatched to the site and transported the employee to an emergency room, where they was diagnosed with a head contusion.

September 30, 2024 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Caught in, under or between a moving and a stationary object

During a routine maintenance procedure on an air conditioning unit, site mechanic was injured when EE's left leg became entrapped by the equipment's bucket. Employee sustained a left ankle and foot fracture.

September 30, 2024 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
CalMat Co · Over-exertion in lifting objects

Employee alleges a lower back strain due to shoveling. Employee self procured medical treatment at a local hospital where EE was prescribed 600mg of ibuprofen.

September 5, 2024 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech DISORDERS (PHYSICAL AGENTS)
CalMat Co · Contact with heat

Repairman reported experiencing symptoms of heat illness. Emergency Medical Services were dispatched to assess the employee. At the employee's request, the employee was transported to the emergency room for further evaluation where employee was placed off work for 1 day.

August 19, 2024 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman STRIKING OR BUMPING
CalMat Co · Struck against stationary object

While Employee was walking up a staircase, accessing a conveyor catwalk, Employee moved right arm and engaged a broken sign causing a laceration in the right forearm.

August 19, 2024 AZ · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
CalMat Co · Struck against stationary object

Employee was operating a CAT 988H loader, when EE struck a pile of recycled asphalt pavement on a roadway that EE was traveling on. Resulting in scratches to both forearms, neck, back, and knee pain. On 8/27/2024 Employee visited the clinic and was given work restrictions.

June 24, 2024 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer DISORDERS (REPEATED TRAUMA)
CalMat Co · Over-exertion (Not Elsewhere Classified)

On 7/10/24, operator reported that turning the knobs on the loadout system caused a cyst on EE's right index finger over a span of two days. The medical evaluation diagnosed EE with a ganglion cyst of the right finger. The employee was cleared to full duty with no restrictions. However, during a recent appointment on 8/20/24, the employee was referred for physical therapy.

May 31, 2024 CA · Metal/Non-Metal miner, prospector, nec SLIP OR FALL OF PERSON
CalMat Co · Fall down stairs

While standing on the second to last step on a staircase, plant operator was washing down material from underneath a conveyor belt when EE fell backwards onto the ground. Emergency sustained a head laceration requiring sutures.

April 10, 2024 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
CalMat Co · Struck by... (Not Elsewhere Classified)

While performing repairs on screens, maintenance employee cut themselves with a utility knife sustaining a thigh laceration. Emergency personnel dispatched to facility where the employee was transported via ambulance for further medical treatment. Employee received sutures and was discharged later that day.

April 9, 2024 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
CalMat Co · Fall to the walkway or working surface

Initially treated as a first-aid injury on 4/9/24 operator attempted to walk down a steep undeveloped slope, when EE lost EE's footing falling to the ground. On 4/11/24 employee requested medical evaluation where EE was diagnosed with an abrasion to the left forearm and contusion of unspecified front wall of thorax.

November 9, 2023 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
CalMat Co · Fall to the walkway or working surface

On 11/9/23 Maintenance employee was standing on a platform not suitable to work attempting to adjust a head pulley guard. During the process the employee lost balance and began to fall backwards, the employee managed to catch themselves by using their right arm.

October 16, 2023 CA · Metal/Non-Metal electrician, lineman HANDLING OF MATERIALS
CalMat Co · Over-exertion in lifting objects

On 10/16/2023 employee was assisting in a pit move relocating a 2.5" electrical cord. Employee reports EE began to experience discomfort in EE's right shoulder the following day 10/17/23 but did not notify management until 10/18/23. On 10/23/23 employee requested medical evaluation where EE was diagnosed with a strain to EE's right shoulder and placed on modified work duty.

September 29, 2023 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
CalMat Co. · Struck against a moving object

Employee reports while operating a CAT992 EE struck a toe in the wall causing EE's neck to move in a sudden backwards motion. Employee began to experience headaches and pain in EE's neck, after medical evaluation employee was released to full duty with no job restrictions. Employee was prescribed physical therapy.

September 28, 2023 CA · Metal/Non-Metal miner, prospector, nec STEPPING OR KNEELING ON OBJECT
CalMat Co · Over-exertion (Not Elsewhere Classified)

Employee reports as they were descending the water truck their right foot was not placed properly on the equipment's step causing their right foot to roll as they stepped to the ground. Employee was diagnosed with a closed nondisplaced fracture of right foot.

June 22, 2023 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer Fatality · MACHINERY
CalMat Co · Struck against a moving object

Machine operator was operating a CAT D9T dozer clearing overburden material from a bench. Operator reversed the machine backwards an estimated 200-300 ft. at a high speed without looking back and without responding to honking from another machine, per witness testimony. Machine fell off an edge. Operator was pronounced dead at the scene. Machine is total loss.

June 15, 2023 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
CalMat Co · Struck by flying object

On 6/15/23 an EE was replacing a ripper tooth on a CAT dozer. The EE used a sledgehammer to dislodge the ripper tooth and upon impact a roughly 1/4-1/2" piece of the tooth broke off and struck the EE in the left calf. On 6/16/23 EE was taken to the clinic where an x-ray confirmed the object was lodged in their calf. EE was prescribed antibiotics.

June 15, 2023 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
CalMat Co · Struck by flying object

Employee was standing too close to another coworker when a bearing was being removed. It broke loose and struck their lip, splitting it. They needed stitches. No lost time at work beyond the end of that shift. No time off work or work restrictions required by medical personal.

May 3, 2023 CA · Metal/Non-Metal miner, prospector, nec MACHINERY
CalMat Co · Contact with hot objects or substances

Employee was climbing out of a chute with a lit torch in left hand when they swiped their right hand on the torch. Employee sustained a third degree burn to the right hand.

March 26, 2023 CA · Metal/Non-Metal miner, prospector, nec HANDLING OF MATERIALS
CalMat Co · Over-exertion (Not Elsewhere Classified)

On 03/06/2023 employee was retrieving a tear plate when they felt a strain to right shoulder. On 03/27/2023 employee notified management of the incident and requested medical evaluation, employee was placed on modified duty and prescribed work restrictions for a right shoulder strain.

January 24, 2023 NM · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
CalMat Co · Over-exertion in lifting objects

On Tuesday 1/24/2023 the EE experienced a first aid injury to EE's right shoulder while lifting channel iron. On 3/23/2023 EE visited the clinic and was diagnosed with a tear in EE's shoulder area and given work restrictions.

January 19, 2023 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator OTHER
CalMat Co · (Not Elsewhere Classified)

On 01/19/2023 employee experienced a medical emergency while operating a loader. Employee was transported via ambulance to the hospital and was subsequently taken off work.

December 22, 2022 NM · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer OTHER
CalMat Co · (Not Elsewhere Classified)

Audiologist evaluation of annual audiogram shows that a reportable hearing loss has occurred.

December 21, 2022 CA · Metal/Non-Metal miner, prospector, nec HANDLING OF MATERIALS
CalMat Co. · Over-exertion in pulling or pushing objects

Pulling hose to load a shot, pain in abdomen (Umbilical Hernia) ****injury did not become reportable till after the 1/30/23 doctors appointment****

November 30, 2022 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
CalMat Co · Struck against a moving object

Employee alleges experiencing pain to EE's lower back after operating a haul truck, employee claims to have struck a sinkhole on the haul truck road which EE believed to have contributed to EE's injury.

July 28, 2022 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
CalMat Co · Struck by falling object

Employee was removing a guard from the head pulley. When doing so, EE dropped the guard on the top of left foot resulting in a contusion to EE's left foot.

July 18, 2022 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
CalMat Co · Struck by falling object

Employee was looking up to adjust some rollers, when a foreign matter fell into EE's right eye. The following day the employee reported the incident and requested medical treatment.

July 6, 2022 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
CalMat Co. · Over-exertion in pulling or pushing objects

Employee was pulling a hose on the shot, hurt left shoulder.

April 15, 2022 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
CalMat Co. · Over-exertion (Not Elsewhere Classified)

EE alleges strain to left thumb from operating the loader and digging out large rocks. EE requested medical treatment 06/22/2022.

March 16, 2022 AZ · Metal/Non-Metal dry screening plant operator, screen house operator SLIP OR FALL OF PERSON
CalMat Co · Fall to the walkway or working surface

An EE exited the area under the main primary feeder and lost footing and fell on the loose material sloping alongside the feeder sustaining a first aid only injury. On 03/23/22 the EE wanted to have the shoulder checked at a clinic. X-Rays were taken and revealed a fractured collar bone and two fractured ribs. EE was released to return to work with restrictions.

March 16, 2022 CA · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger HANDLING OF MATERIALS
CalMat Co · Over-exertion (Not Elsewhere Classified)

EE was exiting the crane cab, up and onto the crane deck when the EE caught their foot on an operational pedal; in the event the EE grabbed a cab door handle thus swinging the EE into the crane deck. The EE injured the right shoulder and knee in the while exiting up and onto the deck.

February 18, 2022 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
CalMat Co. · Struck by flying object

Employee was working on the jaw crusher. When EE cut the bolt, it ricocheted hitting the employee's face. Employee was treated at the emergency room and diagnosed with a fractured nose and fractured eye socket.

February 7, 2022 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
CalMat Co · Fall from machine

Clear sunny day. Field Tech was stepping down from the bed of the service truck and lost footing. Body was then shifted and impacted an umbrella holder mounted to the truck, they then fell to the ground on left side and impacted rib cage

January 14, 2022 AZ · Metal/Non-Metal outside foreman, leadman SLIP OR FALL OF PERSON
CalMat Co · Fall to lower level, (Not Elsewhere Classified)

On 1/14/22 EE experienced first aid injuries when EE fell through a catwalk. On 6/15 EE had EE's shoulders medically checked. EE was released to full-duty and light physical therapy. On 8/15 EE was still having discomfort, a MRI showed a slight tear in both shoulders. EE had surgery on EE's right shoulder on 10/10/22.

December 20, 2021 CA · Metal/Non-Metal drill operator MACHINERY
CalMat Co. · Caught in, under or between a moving and a stationary object

While training another person, employee looked back at the drill rig, the operator motioned the drill pipe. Employee noticed the drill pipe fell out of gripper arm. When employee touched the pipe to assist it back into the gripper arm. The pipe dropped and pinched the tips of fingers 3 & 4 on right hand

December 13, 2021 NM · Metal/Non-Metal master mechanic, foreman, supervisor HANDTOOLS (NONPOWERED)
CalMat Co · Struck by flying object

A water pump in the pond was being replaced by 6 employees. One employee was holding a 48" pipe wrench holding the shaft in place. Another employee was using a 36" pipe wrench to turn the shaft to break it free. As the employee turned the shaft, the employee holding the pipe wrench lost grip and the tool swung around coming off striking an employee in the head above left ear.

October 25, 2021 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
CalMat Co · Struck by falling object

During the installation of rebar for the surge tunnel, a piece of #10 rebar was being placed and dropped. The bar was being installed by several men on a wall. The bar that fell was about 51'-0 long. It was being tied horizontally. When they were handing the bar across it slipped out and fell, landing on EE's wrist.

September 30, 2021 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
CalMat Co · Over-exertion in lifting objects

Employee alleges that while shoveling material onto the conveyor, EE experienced a strain to EE's right shoulder. On October 1, 2021, the employee requested medical treatment; EE was treated at the clinic where EE was prescribed work restrictions.

August 5, 2021 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
CalMat Co. · Caught in, under or between running or meshing objects

An employee was helping another mag drill holes. The plate was cleaned and drill clear, another employee turned it on at the same time IE reached back in to move a rag. It became entangled in the bit and around IE's glove. This caused lacerations to ring finger and lacerations/fractures to the tip of middle finger, resulting in the loss of 1/2 inch of the tip of middle finger.

June 23, 2021 NM · Metal/Non-Metal dryer operator, kiln operator, dry plant operator, fluid operator, bed dryer operator SLIP OR FALL OF PERSON
CalMat Co · Over-exertion (Not Elsewhere Classified)

Employee exited water wagon which was parked by water stand to turn off water valve which is located 20' from water wagon. Employee stated they stepped on soft spot and twisted ankle.

June 1, 2021 CA · Metal/Non-Metal rotary bucket excavator operator SLIP OR FALL OF PERSON
CalMat Co · Fall to the walkway or working surface

Employee exited the excavator EE was operating. Upon exiting EE stepped onto an unstable piece of concrete which caused EE to lose balance, twisting ankle and falling over.

May 4, 2021 CA · Metal/Non-Metal sweeper operator HANDLING OF MATERIALS
CalMat Co · Over-exertion in pulling or pushing objects

While performing daily clean up of the sweeper truck, employee experienced slight discomfort in right shoulder while removing the suction hose.

Showing 50 of 491