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
Filters 2 active
Time period
Experience at time of incident

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The record

41 matching records

Showing all 41
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.

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.

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.

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.

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.

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

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.

March 29, 2021 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Struck by... (Not Elsewhere Classified)

EE was removing the segments on 988G loader bucket. EE was using 3/4" air impact gun to remove nuts from plow bolts. The bolt loosened, descended allowing it to spin. EE used palm to push the bolt back to lock it in place to allow impact to remove the nut from top. The plow bolt engaged EE's glove pulling EE's hand into it and caused a severe cut across the right palm/thumb.

January 29, 2021 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co. · Flash burns (welding)

EE was welding in the primary feeder, while welding EE suffered flash burn not knowing until the next day. Cause was possible flash reflecting off the feeder coming through the back of EE's welding hood.

August 4, 2020 CA · Metal/Non-Metal welder (non-shop) MACHINERY
CalMat Co · Contact with hot objects or substances

On August 4, 2020 the employee struck a welding rod on the top side of EE's right hand in the thumb area causing an arching burn. The employee was returned to work without restrictions. On November 9, 2020, the employee was prescribed work restrictions following surgery to repair nerve damage.

May 4, 2019 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Struck by... (Not Elsewhere Classified)

On 5/4/19 employee was taken to the local hospital where EE received surgery for a puncture wound. While greasing the left lift cylinder of the 775E haul truck, and holding the grease lines together, the grease gun came loose of the grease zirk resulting in a puncture to the left thumb.

September 21, 2018 AZ · Metal/Non-Metal plumber, pipefitter, millwright MACHINERY
CalMat Co. · Struck by flying object

Employee working beneath rock crusher box felt an assumed piece of dirt in the right eye

September 14, 2015 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
CalMat Co · Struck by... (Not Elsewhere Classified)

On 9/14/15 the employee was taken to the Company clinic, received stitches for a left eye orbit laceration and was released to regular work on 9/15/15. The employee was struck in the orbit of his left eye by a drag cable during an installation and sustained a laceration.

July 13, 2015 CA · Metal/Non-Metal welder (shop) MACHINERY
CalMat Co · Contact with hot objects or substances

On 7/13/15, the employee was treated at an emergency room, was diagnosed with a 2nd degree burn to the left wrist and was placed on restricted duty which is being accommodated. The employee lost control of a torch and subsequently burned his left wrist.

November 10, 2014 NM · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
CalMat Co · Struck against a moving object

Newly hired employee requested medical treatment on 11-10-14 and was placed on restricted duty which is being accommodated. The employee alleged that while operating a dozer pushing material, he backed to the top of the slope and when the dozer broke over to even ground, he felt pain in his lower back and leg. He was diagnosed with a lumbar strain and disc degeneration.

June 6, 2014 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Struck by... (Not Elsewhere Classified)

On 6/13/14, the employee requested medical treatment, was taken to the company clinic and was prescribed an antibiotic for left eye conjunctivitis. The employee felt something enter his L-eye while using an air impact wrench to tight bolts on a pipe. He was released to full duty.

November 6, 2013 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Struck by... (Not Elsewhere Classified)

On 11/6/13 the employee was taken to the hospital and received stitches for a laceration. While grinding on a crusher rotor, the grinder kicked back and struck the employee in the mouth resulting in a laceration to the upper lip. The employee was released to full duty on 11/7/13.

October 24, 2013 CA · Metal/Non-Metal coal/ore shovel operator, shoveler, power shoveler MACHINERY
CalMat Co · Struck against a moving object

On 11-14-13 the employee requested medical treatment, was taken to the Company clinic and was placed on restricted duty which is being accommodated. The employee alleged that operating the excavator and possibly the bobcat caused pain in his lower back.

August 31, 2010 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Struck by... (Not Elsewhere Classified)

Mechanic was not looking up at air blower. One of four air diffusers had fallen out and as the machanic moved his hand across the diffusers his finger came in contact with the fan blade where the diffuser was missing.

July 18, 2008 CA · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger MACHINERY
CalMat Co · Contact with hot objects or substances

The employee was taken to the company clinic on 7/18/08 and was placed on restricted duty. The employee was using a cutting torch and as he re-positioned himself, he turned the torch towards his R-wrist resulting in a 1st - 2nd degree burn.

May 10, 2007 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
CalMat Co · Struck by falling object

The employee was taken to the hospital on 5/10/07 and was taken off work. The employee was struck on the head and chest by a tree limb while it was being cut down by another employee.

January 14, 2007 AZ · Metal/Non-Metal welder (shop) MACHINERY
CalMat Co · Contact with hot objects or substances

Employee was chipping a weld and a piece of hot slag entered his left eye. He was wearing clear safety glasses and a welding hood

January 27, 2006 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Struck by flying object

The employee went to see the company doctor on 1/28/2006 and was placed on restricted duty. The employee was grinding on the crusher bowl threads when a foreign object became embedded in his L-eye.

October 28, 2005 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Contact with hot objects or substances

The employee went to see the company doctor on 11/9/2005 and was placed on restricted duty. While cutting a chute liner with a welding torch, the flame burned through the glove and burned the employee on the right hand.

September 6, 2005 CA · Metal/Non-Metal welder (shop) MACHINERY
Calmat Company · Contact with hot objects or substances

The employee went to see the company doctor on 9/6/2005 and was placed on restricted duty. While cutting wear plates with a welding torch, the employee burned his L-thumb due to a hole in the welding gloves.

June 11, 2005 AZ · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
CalMat Co · Absorption of radiations, caustics, toxic and noxious substances

Running crusher plant while lime silo was being emptied with hydrated lime. Five (5) days later, employee informed office of "rash or infection" to feet. Employee stated that he thought it was from the lime.

March 19, 2004 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
CalMat Co · Struck by... (Not Elsewhere Classified)

EE WENT TO SEE COMPANY DR. ON 3/19/04, STITCHES WERE APPLIED AND HE WAS PLACED ON RESTRICTED DUTY. WHILE REMOVING NUTS AND BOLTS FROM A LOADER BUCKET, EE CUT HIS LEFT INDEX FINGER CAUSING A LACERATION.

January 16, 2004 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Struck by falling object

EMPLOYEE WENT TO SEE A DOCTOR ON 1/16/04 AND WAS PLACED ON RESTRICTED DUTY UNTIL 1/19/04 DUE TO A FRACTURE TO HIS TOE. EMPLOYEE WAS TURNING OVER A SKID STEER BUCKET TO INSTALL A NEW BOTTOM PIE CE AND BUCKET DROPPED ON HIS LEFT FOOT CAUSING A CONTUSION TO LEFT FOOT AND A FRACTION TO HIS LEFT TOE.

February 5, 2003 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Contact with hot objects or substances

EE WENT TO SEE COMPANY PHYSICIAN ON 2-11-02 AND WAS PLACED ON RESTRICTED DUTY. WHILE USING CUTTING TORCH TO CUT A PIECE OF STEEL, IT FLIPPED OVER FROM A TWIST IN THE HOSE CAUSING A BURN TO EE' S LEFT HAND.

December 4, 2002 CA · Metal/Non-Metal welder (shop) MACHINERY
CalMat Co · Struck by falling object

EMPLOYEE WENT TO SEE COMPANY PHYSICIAN ON 12-4-02 AND WAS PLACED ON RESTRICTED DUTY. EE USING A 9" HAND GRINDER ON A 10" I BEAM, WHILE GRINDING THE BEAM SHIFTED OFF SUPPORT ONTO RIGHT FOOT WHI CH CAUSED A FRACTURE TO RIGHT FOOT.

August 9, 2002 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
CalMat Co · Struck against a moving object

EE WENT TO SEE CO DR ON 8/9/02 AND WAS PLACED ON RESTRICTED DUTY. EE CLAIMS THAT OPERATING MOBILE EQUIPMENT OVER THE YEARS, REAGGRAVATED AN OLD BACK INJURY. ALLEGED.

March 12, 2002 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Struck by falling object

WHILE CUTTING OFF THE BEARING SUPPORT ARM WITH A TORCH, SUPPORT ARM FELL ONTO EE'S L-KNEE WHICH CAUSED A CONTUSION & LACERATION TO L-KNEE. EE WENT TO SEE COMPANY DR ON 3/12/02 & WAS PLACED ON RESTRICTED DUTY.

December 18, 2001 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
CalMat Co · Struck by flying object

WHILE HE WAS OPERATING THE JAW CRUSHER, A TOOTH FROM THE DRAGPLATE SHOT OUT OF THE JAW CRUSHER, GLANCED OFF ANOTHER OBJECT AND WENT THROUGH A CRUSHER WINDOW STATION AND STRUCK HIS SHOULDER.

September 29, 2001 CA · Metal/Non-Metal welder (shop) MACHINERY
CalMat Co · Flash burns (welding)

EMPLOYEE WENT TO CLINIC ON 9/29/01 AND WAS RETURNED TO FULL DUTY AND RECEIVED PRESCRIPTION AND MEDICATION. EMPLOYEE WAS WELDING ON EXCAVATOR BUCKET WHEN HE RECEIVED FLASH BURN TO BOTH EYES.

August 15, 2001 CA · Metal/Non-Metal welder (shop) MACHINERY
CalMat Co · Struck by... (Not Elsewhere Classified)

EMPLOYEE WENT TO SEE HIS DOCTOR ON 8/17/01 AND WAS TAKEN OFF WORK. A PIECE OF METAL IMBEDDED INTO EMPLOYEE'S R-EYE WHILE GRINDING ON A LOADER BUCKET.

July 31, 2001 CA · Metal/Non-Metal welder (shop) MACHINERY
Calmat Company · Struck by powered moving object

EMPLOYEE WENT TO THE COMPANY DR. ON 7-31-01, STICHES WERE APPLIED AND HE WAS PLACE ON RESTRICTED DUTY. EMPLOYEE WAS WELDING WELDS ON PIPE WITH LARGE ELECTRIC GRINDER WHEN THE GRINDER KICKED BA CK AND STRUCK THE EMPLOYEE IN THE R. KNEE WHICH CAUSED A LACERATION.

May 23, 2001 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
CalMat Co · Over-exertion (Not Elsewhere Classified)

EE WENT TO SEE COMPANY DOCTORE ON 5-23-01 AND WAS PLACED ON RESTRICTED DUTY. EE WAS SITTING DOWN UNDER A CRUSHER MAIN FRAME PEROFRMING NORMAL JOB DUTIES WHEN RIGHT KNEE CRAMPED UP.

November 8, 2000 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Struck by... (Not Elsewhere Classified)

EMPLOYEE WENT TO SEE A DOCTOR ON 11-8-00 AND WAS PLACED ON RESTRICTED DUTY. OBSERVING DOZER PUSH MATERIAL INTO DOZER TRAP AND AS AIR WAS DISPLACED FROM FEEDER, IT CARRIED AIRBORNE PARTICLES WH ICH ENTERED EMPLOYEE'S RIGHT EYE.

August 31, 2000 CA · Metal/Non-Metal welder (shop) MACHINERY
CalMat Co · Struck by flying object

EMPLOYEE WENT TO SEE THE DOCTOR ON 8-31-00 WHO REMOVED A FOREIGN OBJECT EMBEDDED IN RIGHT EYE. WHILE WELDING, A CHIP OF HOT, DRIED PAINT ENTERED INTO EMPLOYEE'S RIGHT EYE UNDERNEATH HIS CUTTI NG GLASSES.

May 11, 2000 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
CalMat Co · Over-exertion (Not Elsewhere Classified)

WHILE PUSHING SAND AND GRAVEL MATERIAL IN THE PIT FOR PRODUCTION, EMPLOYEE RAISED BLADE OF DOZER AND DOZER JUMPED UP. EMPLOYEE FELT A SHARP IMPACT ON THE LOWER BACK.

March 16, 2000 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Calmat Company · Struck by... (Not Elsewhere Classified)

EE WENT TO SEE DOCTOR ON 3/17/00 AND WAS PLACED ON RESTRICTED DUTY. WHILE GIVING HAND SIGNALS TO EQUIPMENT OPERATORS, A PIECE OF METAL OR ROCK SHOT OUT FROM UNDER TRAC OF DRAGLINE AND HIT EE I N THE NECK.

Showing all 41