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

133 total records

Showing 50 of 133
April 10, 2026 OR · Metal/Non-Metal ENTRAPMENT
Knife River Corporation-Northwest · Accident type, without injuries

Outside hauler from Brix dropped off material at rap pile and left box up while pulling away, resulting in the box making contact with an overhead 240 powerline pulling it down. Power line fell on top of the hood of the Brix truck. Hauler stayed in the cab for more than 30 minutes until a qualified electrician from PGE removed the power and clear the scene. No injury.

April 1, 2026 OR · Metal/Non-Metal outside foreman, leadman OTHER
Knife River Corporation-Northwest · Bodily reaction, (Not Elsewhere Classified)

Team member was tightening a set screw in a slightly bent position, stood up, and experienced back discomfort.

March 22, 2026 OR · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
Knife River Corporation-Northwest · Over-exertion (Not Elsewhere Classified)

Tunnel feeder had concrete chunks get stuck on crossbeams and needed to be removed before any more material is fed into the feeder. Employee took a 12lbs sledgehammer and tried to break material, this did not work. After this task the Employee felt pain in their right hand. Employee did not report the pain until 03/27/2026 at 630am after medical treatment

September 16, 2025 OR · Metal/Non-Metal barge/boat/dredge/towbarge/towboat/leach operator, riverman, deck hand SLIP OR FALL OF PERSON
Knife River Corporation-Northwest · Fall onto or against objects

Team member was assisting rolling pipes on the dredge. Tool became disengaged when team member went to pull down on handle, causing them to lose balance and fall backwards onto a metal box.

July 18, 2025 OR · Metal/Non-Metal plumber, pipefitter, millwright MACHINERY
Knife River Corporation-Northwest · Struck by flying object

Employee was blowing themselves off with air hose after end of shift. Leading to foreign material getting into their right eye.

April 15, 2025 OR · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker HANDLING OF MATERIALS
Knife River Corporation-Northwest · Caught in, under or between a moving and a stationary object

Individual attempted to lift a 5-6 ft. long chunk of I-beam (weighing approximately 150 lbs.) and toss it over the handrail of an elevated screen deck to the ground below. The I-beam shifted and pinched their right thumb between the beam and handrail. Individual complained of extreme pain and was transported to Urgent Care where an X-Ray discovered a broken bone in the right thumb.

September 4, 2024 OR · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker HANDLING OF MATERIALS
Knife River Corporation-Northwest · Caught in, under or between a moving and a stationary object

Team member was tying a boat up when their left hand was caught between the metal railings, resulting in fracture.

August 8, 2024 OR · Metal/Non-Metal mine manager, mine foreman, mine owner OTHER
Knife River Corporation-Northwest · (Not Elsewhere Classified)

Team Member complained of chest pain before suddenly becoming unresponsive. Bystanders administered CPR and they were transported to the hospital.

June 24, 2024 OR · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker HANDLING OF MATERIALS
Knife River Corporation-Northwest · Rubbed or abraded

Team member got dirt and a small cut on their left eyelid on 6/24/2024. By 6/26/2024, the eye was swollen and became painful. Team member sought medical care at a local eyecare center.

April 7, 2024 OR · Metal/Non-Metal plumber, pipefitter, millwright HANDLING OF MATERIALS
Knife River Corporation-Northwest · Caught in, under or between a moving and a stationary object

Team member was removing washer bearing from back of log washing machine. While pushing the bearing flange through the wall, their finger was pinched between the wall and the flange causing a laceration to pinky finger which required stitches.

February 12, 2024 OR · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker OTHER
Knife River Corporation-Northwest · Bodily reaction, (Not Elsewhere Classified)

Miner was performing maintenance on a cone crusher. While lying down, miner reached up to access bolts on the hydraulic block when their shoulder spontaneously dislocated. Miner reports previous history of same condition, outside of work.

November 14, 2023 OR · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Knife River Corporation-Northwest · Struck against a moving object

The miner was operating a 966 feed loader over rough terrain, which caused them to bounce around in their seat and cause back pain.

October 11, 2023 OR · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
Knife River Corporation-Northwest · Caught in, under or between a moving and a stationary object

Team member was guiding the leg of a crusher into the foot pedestal. As the foot fell into place, it caught the right ring finger when the leg slid into the stand. Team member sustained a right ring fingertip amputation without bone loss.

September 18, 2023 OR · Metal/Non-Metal groundman, yardman MACHINERY
Knife River Corporation-Northwest · Caught in, under or between a moving and a stationary object

Miner entered HP400 cone crusher after performing lock out/tag out to clear a large rock stuck between cone and mantel. Miner failed to recognize the stored energy in the cone being suspended by the rock. When dislodging the rock, the weight of the cone came down trapping both feet between the cone and mantel.

September 18, 2023 OR · Metal/Non-Metal master mechanic, foreman, supervisor MACHINERY
Knife River Corporation-Northwest · Struck by... (Not Elsewhere Classified)

Individual sustained a 5cm laceration to left forearm while performing maintenance with a 4.5" grinder. Grinding wheel became bound in material while individual was cutting a weld, causing the grinder to accelerate forward into their arm.

September 1, 2023 OR · Metal/Non-Metal plumber, pipefitter, millwright HANDTOOLS (NONPOWERED)
Knife River Corporation-Northwest · Over-exertion (Not Elsewhere Classified)

On 9/11 individual reported injury of unknown origin. EE later states that on 9/1 EE was attempting to obtain leverage with EE's shoulder on a wrench handle, and injured EE's shoulder trying to break a screen bolt loose. Last date of work was 9/11, on 9/17 was seen by medical provider and released to work with restrictions. No-call, no-showed and terminated 9/21.

August 16, 2023 OR · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
Knife River Corporation-Northwest · Struck against stationary object

MINER WAS INSTALLING A BRACKET ON THE WALL AND BRUSHED THEIR ARM AGAINST ONE OF THE PROTRUDING BOLTS THAT HAD NOT YET BEEN FULLY SECURED RESULTING IN A LACERATION TO THEIR ARM THAT REQUIRED SUTURES.

May 18, 2023 OR · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Knife River Corporation-Northwest · Fall down stairs

Miner was negotiating stairs to perform maintenance on a screen. When they turned to face screen, their foot slipped off of the stair tread causing them to trip down the remaining two steps and sit down on top of their right foot/ankle. Miner was evaluated for right ankle strain.

January 18, 2023 OR · Metal/Non-Metal FIRE
Knife River Corporation-Northwest · Accident type, without injuries

An electrical fire in the MCC initiated upon startup of operational controls. Damage includes a total loss of MCC and appurtenant wiring/electrical systems. No persons were injured.

December 8, 2022 OR · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDTOOLS (NONPOWERED)
Knife River Corporation-Northwest · Fall onto or against objects

MINER WAS USING A PRY BAR TO LIFT UP THE LATCH OF A PINTLE HITCH. THE PRY BAR LOST PURCHASE ON THE LATCH WHILE THE MINER WAS PUSHING DOWN ON THE END OF THE BAR RESULTING IN THE LOSS OF BALANCE. MINER FELL FORWARD AND STRUCK THEIR FACE ON THE TOP SUPPORT BAR OF A MUDFLAP RESULTING IN THE DISLODGEMENT OF A DENTAL CROWN. THE UNDERLYING TOOTH WAS CHIPPED AND STILL AFFIXED TO THE CROWN.

November 22, 2022 OR · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Knife River Corporation-Northwest · Struck by rolling or sliding object

MINER WAS STRUCK IN THE LOWER BACK BY THE OVERFLOW CHUTE OF A PORTABLE CRUSHER AFTER IT SHIFTED WHILE BEING STOWED ON THE TRAILER FOR TRANSPORT. THE IMPACT KNOCKED MINER TO THE GROUND.

October 31, 2022 OR · Metal/Non-Metal electrician, lineman POWERED HAULAGE
Knife River Corporation-Northwest · Caught in, under or between a moving and a stationary object

Electrical Contractor (ID K893) on our mine site was operating a F-350 pickup ascending a haul road when the vehicle suffered a brake failure and began rolling backwards. Individual removed their seat belt and jumped from the moving vehicle resulting in left lower extremity being "run over" by the L front tire of the pickup as it rolled backwards.

October 17, 2022 OR · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver MACHINERY
Knife River Corporation-Northwest · Struck against a moving object

DUMP BOX OF HAUL TRUCK BEING OPERATED BY MINER WAS JOSTLED BY EXCIVATOR BUCKET WHILE LOADING MATERIAL. MINER REPORTS NECK AND BACK PAIN.

August 25, 2022 OR · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Knife River Corporation-Northwest · Over-exertion in lifting objects

LIFTING 8" PIECE OF STEEL CHANNEL TO REPLACE A LEG/SUPPORT BEING INSTALLED ON AN OVERLAND CONVEYOR. CARRIED ITEM APPROX 30' AND SET IT DOWN. MINER EXPERIENCED RIGHT TESTICULAR PAIN.

August 1, 2022 OR · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Knife River Corporation-Northwest · Struck by falling object

TEAM MEMBER WAS LIFTING INSPECTION DOOR TO VSI. WHILE MOVING TO GET A BETTER LEVERAGE ON THE DOOR TO USE TWO HANDS, THE DOOR SLIPPED AND LANDED ON TEAM MEMBER'S LEFT THUMB. THE EVALUATION BY THE HAND SPECIALIST INDICATES NERVE DAMAGE AND BONE IS OFFSET AND WILL NEED SURGERY.

April 13, 2022 ID · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Knife River Southern Idaho Division · Struck by flying object

Miner was working on a conveyor and cleared the dust off the are they were about to work on and got dust in their eye.

January 14, 2022 OR · Metal/Non-Metal dispatcher MACHINERY
Knife River Corporation-Northwest · Caught in, under or between a moving and a stationary object

Team members were picking up a sand screw equipment off a trailer with a crane. One of the rear rigging legs was hung up on a bolt/stud. Team member went to correct the rigging. As EE's hand got near the chain it released tension, taking EE's hand with it towards the sand screw frame rail, pinning it between the chain and the frame. Tip of right index finger was fractured.

September 27, 2021 OR · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer OTHER
Knife River Corporation-Northwest · (Not Elsewhere Classified)

Prior to the beginning of Team Members regular shift, they experienced a non-work related acute on-set medical event that resulted in their death. This is an immediately reportable accident not a work related injury or illness.

August 30, 2021 OR · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Knife River Corporation-Northwest · Caught in, under or between a moving and a stationary object

WHILE PERFORMING MAINTENANCE ACTIVITIES ON AN HP 400 CONE CRUSHER, TEAM MEMBER WAS REMOVING PIN FROM HYDRAULIC CYLINDER ON AN HP 400. WHEN PIN WAS REMOVED, THE HYDRAULIC CYLINDER CAME DOWN PINCHING LEFT PINKY FINGER BETWEEN CYLINDER AND OBJECT USED TO REMOVE PIN. FINGER REQUIRED STITCHES.

April 1, 2021 OR · Metal/Non-Metal miner, prospector, nec HANDLING OF MATERIALS
Knife River Corporation-Northwest · Struck by flying object

WHILE PERFORMING MAINTENANCE ACITVITIES ON A CONVEYOR, EE DISLODGED MATERIAL THAT WENT BETWEEN THEIR FACE AND SAFETY GLASSES CONTACTING THEIR LEFT EYE. EE WAS EVALUATED AS HAVING A CORNEAL ABRASION AND PRESCRIBED EYE DROPS.

March 12, 2021 OR · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker MACHINERY
Knife River Corporation-Northwest · Struck by flying object

WHILE PERFORMING MAINTENANCE ACTIVITIES, PNEUMATIC HOSE ATTACHED TO IMPACT GUN SEPARATED AT UNION. COUPLER AT END OF HOSE STRUCK TM IN RIGHT CHEEK AND MOVE BETWEEN EYE AND EYE PROTECTION. TM WAS EVALUATED AND PRESCIRBED MEDICATION

June 23, 2020 OR · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Knife River Corporation-Northwest · Over-exertion (Not Elsewhere Classified)

Team member was walking on unstable ground. Sunk into mud up to knee, went to turn to grab a stable ladder and felt a pop in the right knee.

May 18, 2020 OR · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Knife River Corporation-Northwest · Caught in, under or between a moving and a stationary object

Team Member removed the mantel nut on an HP-400 Cone Crusher while performing regular maintenance. Team member lost grip of the mantel nut while setting it to the side causing there right hand / wrist to be pinch between the cone liner and mantel nut.

November 21, 2019 ID · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Knife River Southern Idaho Division · Struck by... (Not Elsewhere Classified)

Employee cut a finger using a utility knife performing maintenance.

October 14, 2019 OR · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Knife River Corporation-Northwest · Struck against a moving object

TM WAS DRIVING RENTAL WATER TRUCK AND BOUNCED THROUGH RUTTED AREA CAUSING PAIN IN BACK. PHYSICAL THERAPY PRESCRIBED TO STRENGTHEN BACK MUSCLES STARTING 10/14

September 12, 2019 ID · Metal/Non-Metal outside foreman, leadman ELECTRICAL
Knife River Southern Idaho Division · Struck by flying object

Trouble shooting on electrical starter in control van. Employee went to de-energize breaker and the breaker malfunctioned causing small debris to discharge into employee's work area. Debris went inside the top employee's safety glasses. Employee suffered laceration to surface of eye and no impairment is expected.

May 3, 2019 OR · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer DISORDERS (REPEATED TRAUMA)
Knife River Corporation-Northwest · Rubbed or abraded

INJURY OCCURRED ON 5/3/19 BUT MINER DID NOT SEEK TREATMENT UNTIL 5/13/19. ANTIBIOTIC PRESCRIBED AS A PRECAUTIONARY MEASURE FOR BURSITIS OF THE KNEE RESULTING FROM CONTINUOUS WORK WHILE MINER WAS CRAWLING/KNEELING ON EE'S KNEES.

February 28, 2019 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator POWERED HAULAGE
Knife River Southern Idaho Division · Caught in, under or between a moving and a stationary object

The employee was trying to adjust a chain on the telescoping conveyor. The cable clamp holding the sliding conveyor in place came apart and the conveyor belt slid down crushing the employee.

February 11, 2019 ID · Metal/Non-Metal miner, prospector, nec POWERED HAULAGE
Knife River Southern Idaho Division · Caught in, under or between running or meshing objects

Employee was adjusting an under guard on a cross conveyer. The belt caught the guard and pulled the employees hand in where EE received 12 stitches to the top of the right hand

December 5, 2018 OR · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Knife River Corporation-Northwest · Struck against a moving object

Miner was operating long stick excavator over a period of time and felt weakness, muscle burning and loss of feeling in right shoulder and arm. Miner lists the date of injury as early September but did not report it to employer until 12/05/2018 and first sought medical treatment on 12/15/2018. Attending physician has listed injury as right arm pain and hand numbness.

November 26, 2018 OR · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker HANDLING OF MATERIALS
Knife River Corporation-Northwest · Over-exertion in lifting objects

Miner was lifting guard under tail drum of VSI and heard a pop in their back, followed by pain.

September 4, 2018 WA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Knife River Corporation-Northwest · Struck against a moving object

A miner operating a CAT 980 loader developed back pain over the past several months resulting in a modified duty to take a 30 minute break for every 3 hours of mobile equipment operation.

August 14, 2018 OR · Metal/Non-Metal barge/boat/dredge/towbarge/towboat/leach operator, riverman, deck hand MACHINERY
Knife River Corporation-Northwest · Over-exertion (Not Elsewhere Classified)

ON 8/16/18, MINER REPORTED EXPERIENCING SEVERE BACK PAIN AFTER SITTING IN A CHAIR WHILE OPERATING THE DREDGE ON 8/14/18, FOLLOWED BY A 12 HR SHIFT PERFORMING MAINTENANCE ON 8/15/18. MINER INITIALLY REPORTED TO SUPERVISOR AND A GROUP OF MORE THAN FIVE OTHER MINERS THAT BACK PAIN WAS NOT RELATED TO WORK CONDITIONS.

August 7, 2018 ID · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE

The employee was on a conveyer belt. Harness was on. The employee failed to follow lockout tagout procedures. The belt was started and the employee jumped from the belt causing a hairline fracture to the right ankle. Employee is currently on light duty.

July 12, 2018 OR · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Knife River Corporation-Northwest · Fall to the walkway or working surface

Miner was removing a rock from a conveyor. When they stepped back, they tripped over a rock and jammed their left thumb while trying to catch themselves.

October 24, 2017 OR · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Knife River Corporation-Northwest · Fall onto or against objects

WHILE CLIMBING ONTO LOADER, EMPLOYEE CAUGHT RIGHT FRONT TOE OF BOOT ON DECK CAUSING EE TO FALL FORWARD AND JAM RIGHT MIDDLE FINGER INTO CORNER OF RADIATOR GUARD.

September 13, 2017 ID · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker MACHINERY
Knife River Southern Idaho Division · Caught in, under or between running or meshing objects

The employee attempted to stop a pulley and belt system with employee's left hand.

Showing 50 of 133