Mining Incidents

Amrize Stringtown Quarry Metal/Non-Metal

Controlled by Amrize Ltd
Stringtown, Atoka County, OK  ·  Active
MSHA Mine ID: 3400056

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Fatalities
2
Total incidents
57
Years on record
2000–2026
Latest incident
Feb 2026
Compliance record
MSHA citations since 2001
300
citations
85
significant & substantial
$213,680
proposed penalties
$185,968
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 26,262 12 3 456.9
2025 Q2 0 0 0
2025 Q1 1,609 13 3 8079.6
2024 Q2 30,320 0 0 0.0
2024 Q1 1,691 4 1 2365.5
2023 Q4 23,690 0 0 0.0
2023 Q3 25,355 5 2 197.2
2023 Q2 18,169 0 0 0.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

Fatalities at this mine

2 recorded
July 24, 2004 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman Fatality · POWERED HAULAGE
Stringtown Materials LP · Caught in, under or between a moving and a stationary object

While cleaning material buildup from underneath field conveyor using a Bobcat loader, the employee climbed out of the vehicle to inspect a pin which had worked loose on the boom arm. After climbing back into the Bobcat, the employee bypassed the safety devices and operated the equipment standing up and became pinned between the boom crossmember and the roof of the cab.

August 7, 2001 OK · Metal/Non-Metal drill helper Fatality · POWERED HAULAGE
Stringtown Materials LP · Caught in, under or between a moving and a stationary object

EE WAS ASSISTING IN MOVING 5 CONNECTED RAILCARS TO AN ADJACENT TRACK BY MEANS OF A WHEELL TRACTOR. THE REAR RAILCAR BECAME UNCOUPLED FROM THE TRACTOR. THE EE SIGNALED THE OPERATOR OF TRACTOR T O BACK AWAY FROM THE REAR RAILCAR TO ALLOW RECOUPLING. AFTER THE WHEEL TRACTOR BACKED AWAY, THE EE POSITIONED HIMSELF BETWEEN THE TRACTOR & RAILCAR. THE SLACK RELEASED FATALLY INJURING EE.

Reportable incidents

55 on file (excluding fatalities above)

2026 · 1 incident

February 7, 2026 OK · Metal/Non-Metal FIRE
Amrize South Central Inc. · Accident type, without injuries

Employees onsite smelled smoke at the beginning of the shift. Production supervisor went to see where smoke was coming from and observed a fire adjacent to mine property. At the end of the shift around 6:00 pm the fire had spread to mine property, so production supervisor call the fire department. No employee injuries and no mine asset damage.

2022 · 3 incidents

July 14, 2022 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Amrize South Central Inc. · Struck by flying object

Maintenance employee was removing a tooth from the 992 loader. EE was striking the tooth with a hammer when a shard of the tooth flew off and struck EE on the inner thigh of EE's right leg resulting in the shard being embedded in EE's groin area.

May 4, 2022 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Amrize South Central Inc. · Struck by falling object

A plant operator was removing a roller frame from CB-2B conveyor tail end. While pulling the roller out EE's grip slipped and resulted in dropping the roller and it landed on EE's foot approximately one inch above protective steel toe.

February 17, 2022 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer FALLING/SLIDING/ROLLING MATERIALS
Amrize South Central Inc. · Struck by falling object

Water truck operator was cleaning the area around the secondary crusher with a water hose when a rock fell from above and struck the employees hard hat. The employee began to experience a headache and nausea. The employee was diagnosed with a concussion.

2021 · 3 incidents

March 16, 2021 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech POWERED HAULAGE
Amrize South Central Inc. · Struck against a moving object

Maintenance worker was moving man lift from north side of plant to the south side of the plant. While traveling down a ramp in the lift a hydraulic hose failed causing the operator to lose control of the lift. The man lift fell over resulting in the operator suffering a laceration to the left shin and a strained shoulder.

March 1, 2021 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Amrize South Central Inc. · Over-exertion in lifting objects

An employee was in a man lift assisting with installing a new conveyor belt. As the new belt was being pulled onto the conveyor it began to slip off and the employee reached out to grab the belt to keep it from falling to the ground. The employee injured left bicep.

February 20, 2021 OK · Metal/Non-Metal electrician, lineman POWERED HAULAGE
Amrize South Central Inc. · Struck by falling object

An employee was standing under the rail load out conveyor. A frozen piece of material fell from the frame of the conveyor and struck the employee on the hard hat knocking employee to the ground. The employee suffered serious neck and back injuries.

2020 · 3 incidents

November 3, 2020 OK · Metal/Non-Metal dry screening plant operator, screen house operator OTHER
Amrize South Central Inc. · (Not Elsewhere Classified)

Plant operator walked into the office and told office workers they had a pain in shoulder. EE was going to get the shoulder checked out. Employee drove to local hospital. Medical staff told employee they were having a heart attack and rushed employee to hospital in the city.

June 19, 2020 OK · Metal/Non-Metal electrician, lineman ELECTRICAL
Amrize South Central Inc. · Flash burns (electric)

Electrician was performing electrical portion of installing a new rock hammer at the primary crusher. As the electrician was removing the motor starter of the old rock hammer an arc flash occurred. The electrician suffered 1st and 2nd degree burns to face and arm.

April 21, 2020 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer EXPLODING VESSELS UNDER PRESSURE
Amrize South Central Inc. · (Not Elsewhere Classified)

Employee was operating the water truck when the front left tire blew out. The window was down when the tire blew. The sound of the blow out caused pain in employee's left ear.

2019 · 2 incidents

August 7, 2019 OK · Metal/Non-Metal dryer operator, kiln operator, dry plant operator, fluid operator, bed dryer operator MACHINERY
Amrize South Central Inc. · Caught in, under or between running or meshing objects

Plant operator was using a hand held grinder to cut the bearing housing off the tail pulley shaft. The grinder kicked back and came into contact with the employees left foreman. The employee suffered a laceration that required 16 sutures to close.

May 13, 2019 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Amrize South Central Inc. · Caught in, under or between a moving and a stationary object

Two employees lifted a metal gear box to discard it in a metal waste bin. One of the employees got their right middle finger pinched between the gear box and waste bin. Employee suffered a laceration that required 3 sutures.

2018 · 1 incident

January 12, 2018 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Amrize South Central Inc. · Caught in, under or between a moving and a stationary object

Employee was adjusting the forks on a skytrack and pinched finger between the fork and mast of the skytrack.

2017 · 1 incident

January 11, 2017 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Amrize South Central Inc. · Over-exertion in pulling or pushing objects

Employee was helping with installing stairs on primary crusher. Employee was pulling on stairs to get them aligned so the stairs could be welded in place. While pulling on stairs employee felt a pop in the right shoulder. Employee suffered a sprain right shoulder.

2015 · 2 incidents

October 24, 2015 OK · Metal/Non-Metal coal/ore shovel operator, shoveler, power shoveler SLIP OR FALL OF PERSON
Amrize South Central Inc. · Fall to the walkway or working surface

Employee went to sit in a chair . The chair malfunction and the employee and chair fell backwards resulting in a strain to the right elbow

June 18, 2015 OK · Metal/Non-Metal welder (shop) NONPOWERED HAULAGE
Amrize South Central Inc. · Struck by... (Not Elsewhere Classified)

Employees were moving a 55 gallon drum of oil from containment area. The barrel slip from the ledge of the area causing the dolly to strike EE in left hip and straining his lower back. No treatment was sought until July 7/8/2015. EE was evaluated 7/24/2015 MRI results 08/04/15 prescription meds and physical therapy changed first aid to medical.

2014 · 2 incidents

May 16, 2014 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Amrize South Central Inc. · Over-exertion (Not Elsewhere Classified)

EE did his vehicle inspection went to climb in the loader when he reached up to grab the hand rail he felt a pop in right shoulder and a slight pain about and hour later it was slightly burning and sore. He reported the incident and refused medical treatment. He treated under his medical insurance until he needed an MRI.

March 11, 2014 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Amrize South Central Inc. · Struck by falling object

Workers were using a crane and tag line to remove old conveyors when the structure holding the bottom section of conveyor fell striking the employee holding the tag line in the right shin. EE had laceration to right shin requiring 9 stitches

2013 · 1 incident

October 25, 2013 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator OTHER
Amrize South Central Inc. · Absorption of radiations, caustics, toxic and noxious substances

EE was attending annual refresher training stepped outside during break and was stung by a bee. EE allergic to bee stings

2011 · 3 incidents

December 9, 2011 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Amrize South Central Inc. · Fall from machine

EE was on the crane by the spool and the cable broke causing him to lose his balance so he jumped to the ground instead of falling. He fractured his right heel

May 10, 2011 OK · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator DISORDERS (REPEATED TRAUMA)
Amrize South Central Inc. · Over-exertion (Not Elsewhere Classified)

Employee was told by treating physician that she had a work related injury. The diagnosis was carpal tunnel to the left wrist. Medical attention was sought 12/2010 received diagnosis 05/10/2011. Reported to supervisor 05/13/2011.The result of repetitive operation of a Loader. She stated that she will need surgery in July or August.

February 23, 2011 OK · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger HANDLING OF MATERIALS
Amrize South Central Inc. · Struck by flying object

Employee turned on the a/c unit on a piece of equipment when dust from the vents blew into his eye resulting in irritation and an abrasion.

2010 · 2 incidents

February 9, 2010 OK · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger HANDLING OF MATERIALS
Amrize South Central Inc. · Struck by... (Not Elsewhere Classified)

On 2/9/10 a water valve broke causing water to push employee in a low spot in the ground resulting in a knee strain. At the time he denied medical treatment. On 10/15/10 employee requested to seek medical treatment and was taken off work.

January 21, 2010 OK · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger HANDLING OF MATERIALS
Amrize South Central Inc. · Struck by falling object

Employee was hooking a clevis to a loader bucket when a rock fell from the loader striking the employee in the right eye resulting in a corneal abrasion.

2009 · 6 incidents

October 20, 2009 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Amrize South Central Inc. · Over-exertion in pulling or pushing objects

Employee was using a pneumatic impact wrench to tighten a bolt. He used his left shoulder to lean against the wrench for more leverage. This resulted in pain to his shoulder and chest. After seeing a medical professional this injury was not MSHA recordable; however the employee wished to get a second opinion at which time it became reportable.

October 13, 2009 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Amrize South Central Inc. · Caught in, under or between a moving and a stationary object

Employee was using a prybar to install a roller on a dozer when he smashed his thumb between the roller and the equipment. At the time, the employee did not seek medical attention. It was not until 10/23/09 when swelling was apparent in his thumb that the employee wished to see a medical professional.

September 1, 2009 OK · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger HANDLING OF MATERIALS
Amrize South Central Inc. · Struck by... (Not Elsewhere Classified)

Employee was assisting in an oil change on eqipment when a hose fell and the nozzell hit him on the right hand resulting in the dislocation of his 3rd knuckle.

July 15, 2009 OK · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor HANDLING OF MATERIALS
Amrize South Central Inc. · Struck by falling object

Employee was working on a motor when a pulley slipped and landed on his left hand causing a laceration to his left index finger.

June 16, 2009 OK · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger SLIP OR FALL OF PERSON
Amrize South Central Inc. · Over-exertion (Not Elsewhere Classified)

Employee was stepping off a piece of equipment when his foot landed improperly resulting in a sprain to left ankle

February 23, 2009 OK · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger POWERED HAULAGE
Amrize South Central Inc. · Struck against a moving object

EE was operating a loader on 2/23/09 when she hit several potholes causing strain to her neck. On 2/27/09 while operating a loader, again she hit several potholes causing strain to her neck. EE did not report injury to supervisor until 3/4/09.

2008 · 3 incidents

November 12, 2008 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Amrize South Central Inc. · Flash burns (welding)

Employee burned his eyes due to a welding flash.

August 14, 2008 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Amrize South Central Inc. · Over-exertion in pulling or pushing objects

Employee alleges chest wall strain as a result of pulling himself up onto the Hitachi 1200 shovel.

January 3, 2008 OK · Metal/Non-Metal welder (shop) SLIP OR FALL OF PERSON
Amrize South Central Inc. · Fall from ladders

After welding bed of haul unit, employee was descending ladder on back on unit when the ladder slipped causing employee to fall to concrete floor, injuring back.

2007 · 2 incidents

September 5, 2007 OK · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator DISORDERS (REPEATED TRAUMA)
Stringtown Materials LP · Over-exertion (Not Elsewhere Classified)

Employee has pain in right hand/wrist and left shoulder due to repetitive operation of front-end loader.

August 21, 2007 OK · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger HANDLING OF MATERIALS
Stringtown Materials LP · Over-exertion (Not Elsewhere Classified)

Employee alleges lower back strain resulting from releasing hand brake on engine. EE did not report alleged injury until 9/13/07.

2006 · 3 incidents

May 11, 2006 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Stringtown Materials LP · Struck by... (Not Elsewhere Classified)

EE was using a hydraulic jack to place metal liner up against crusher wall when the jack slipped hitting employees left forearm.

February 2, 2006 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
Stringtown Materials LP · Struck against a moving object

While operating haul unit, rear-end came loose from frame of unit causing unit to suddenly stop, resulting in strain/contusion to employee's abdomen caused by impact of seat belt.

January 23, 2006 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman STEPPING OR KNEELING ON OBJECT
Stringtown Materials LP · Struck against stationary object

Employee was climbing down off of shovel and stepped on rock, resulting in sprain of left ankle.

2005 · 1 incident

2004 · 1 incident

January 16, 2004 OK · Metal/Non-Metal backhoe operator, trackhoe operator, crane operator HANDLING OF MATERIALS
Stringtown Materials LP · Struck against stationary object

EE WAS ATTEMPTING TO MOVE ELECTRICAL PLUG WHEN HE BENT DOWN HITTING LEFT KNEE ON CORNER OF METAL RACK, RESULTING IN CONTUSION/ POSSIBLE FRACTURE OF KNEE.

2003 · 1 incident

April 23, 2003 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Stringtown Materials LP · Absorption of radiations, caustics, toxic and noxious substances

WHILE POURING SECONDARY PIT, EMPLOYEE'S LEGS CAME INTO CONTACT WITH WET CONCRETE, RESULTING IN CONCRETE BURNS.

2002 · 6 incidents

October 28, 2002 OK · Metal/Non-Metal backhoe operator, trackhoe operator, crane operator SLIP OR FALL OF PERSON
Stringtown Materials LP · Over-exertion (Not Elsewhere Classified)

WHILE WALKING ON UNEVEN GROUND SURFACE EE TWISTED RIGHT KNEE.

October 11, 2002 OK · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Stringtown Materials LP · Struck against a moving object

EMPLOYEE ALLEGES NECK STRAIN AS A RESULT OF RUNNING LOADER INTO A ROCKPILE TOO HARD.

June 19, 2002 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Stringtown Materials LP · Over-exertion (Not Elsewhere Classified)

EMPLOYEE STRAINED LEFT GROIN AREA WHILE CLIMBING UP AND DOWN THE HAUL TRUCK.

April 22, 2002 OK · Metal/Non-Metal welder (shop) SLIP OR FALL OF PERSON
Stringtown Materials LP · Fall from machine

EE WAS INVOLVED IN CONSTRUCTION OF NEW CONVEYOR WHEN HE SLIPPED & FELL APPROX 4' TO THE GROUND RESULTING IN FRACTURED LEFT WRIST.

March 8, 2002 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Stringtown Materials LP · Over-exertion (Not Elsewhere Classified)

EMPLOYEE STATES THAT CLIMBING ON/OFF THE CRANE TO REPAIR SHIFTING MECHANISM RESULTED IN STRAIN TO LEFT KNEE.

February 25, 2002 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Stringtown Materials LP · Over-exertion in lifting objects

EE LIFTING SCREEN TO PLACE IN LOADER BUCKET WHENHE FELT PAIN IN LOWER BACK.

2001 · 2 incidents

September 17, 2001 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Stringtown Materials LP · Struck against stationary object

AS THE EMPLOYEE WAS CHANGING THE SCREENS ON A SHAKER, HE CUT THE PALM OF HIS RIGHT HAND ON THE EDGE OF THE SCREEN HE WAS PULLING OFF. NOTE: WORKGLOVES WERE BEING WORN AT THE TIME OF THE INCIDE NT.

January 19, 2001 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Stringtown Materials LP · Over-exertion (Not Elsewhere Classified)

EE STRAINED MID-BACK WHILE CARRYING METAL BAR UPTHE STAIRS.

2000 · 6 incidents

April 29, 2000 OK · Metal/Non-Metal truck driver HANDTOOLS (NONPOWERED)
Stringtown Materials LP · Struck by... (Not Elsewhere Classified)

EE WAS HAMMERING A RIPPER TOOTH ON DOZER WHEN A PIECE OF THE TOOTH (STEEL) BROKE OFF AND EMBEDDED RIGHT THIGH.

April 4, 2000 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Stringtown Materials LP · Contact with hot objects or substances

EMPLOYEE WAS OPERATING A MIG WELDER WHEN THE SLAG BURNED THROUGH HIS GLOVE CAUSING 2ND DEGREE BURNS TO LEFT HAND.

April 1, 2000 OK · Metal/Non-Metal mine manager, mine foreman, mine owner HANDLING OF MATERIALS
Stringtown Materials LP · Caught in, under or between (Not Elsewhere Classified)

EMPLOYEE WAS ATTEMPTING TO INSTALL A TAILPULLEY WHEN IT SLIPPED, CAUSING RIGHT LITTLE FINGER TOBE CAUGHT BETWEEN SHAFT AND CONVEYER FRAME, RESULTING IN LACERATION OF FINGER.

March 8, 2000 OK · Metal/Non-Metal miner, nec MACHINERY
Stringtown Materials LP · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS OPERATING CUTTING TORCH FRO AN EXTENDED PERIOD OF TIME RESULTING IN STRAIN TO HIS NECK AND LOWER BACK.

February 12, 2000 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Stringtown Materials LP · Over-exertion (Not Elsewhere Classified)

EE STEPPED DOWN OFF OF RAILCAR ONTO TRACKS AT WHICH TIME HE SPRAINED HIS LEFT ANKLE.

February 4, 2000 OK · Metal/Non-Metal FIRE
Stringtown Materials LP · Accident type, without injuries

THE WELDING TRUCK WAS BROUGHT TO THE SHOP AREA AND PARKED. THE MAINTENENACE CREW WENT TO THE WATER PUMPS AND DRAINED FOR THE NIGHT. UPON RETURNING TO THE SHOP AREA EE ROUNDED THE CORNER OF THE BLDG AND DISCOVERED THE WELDING TRUCK WAS ON FIRE. THE CREW TRIED TO PUT THE FIRE OUT WHILE SUMMONING THE STRINGTOWN FIRE DEPT. ALL FLAMES WERE OUT WITHIN 25 MINUTES OF STARTING. FIRE BURNT