Mining Incidents

Natural Bridge Stone Metal/Non-Metal

Controlled by CRH PLC
Bowen, Powell County, KY  ·  Active
MSHA Mine ID: 1500075

Natural Bridge Stone has $144K in proposed MSHA penalties and $1K outstanding across 6 contested dockets, plus health sampling and the full incident record.

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Fatalities
1
Total incidents
32
Years on record
1985–2021
Latest incident
Sep 2021
Compliance record
MSHA citations since 2000
203
citations
65
significant & substantial
$144,467
proposed penalties
$92,325
paid to date
64% of proposed penalties paid to date, a $52,142 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
97
inspections on record
2,409
inspection hours
8.4
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
203 citations across 2,409 inspection hours.
Source: MSHA inspections data, updated weekly.

Natural Bridge Stone has $144K in proposed MSHA penalties and $1K outstanding across 6 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$144K
proposed penalties
$93K
current assessed
$92K
paid to date
$1K
outstanding
199 assessments are final orders; 6 contested dockets.
As of the most recent assessment on 2025-10-20.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 16,549 2 0 120.9
2025 Q3 16,797 0 0 0.0
2025 Q2 17,912 5 0 279.1
2025 Q1 12,882 1 0 77.6
2024 Q4 12,356 4 1 323.7
2024 Q3 17,311 0 0 0.0
2024 Q2 19,964 1 0 50.1
2024 Q1 16,711 5 1 299.2
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 18,367 1 0 54.4
2023 Q3 17,319 0 0 0.0
2023 Q2 19,230 1 1 52.0
2023 Q1 17,429 1 1 57.4
2022 Q4 18,452 4 3 216.8
2022 Q3 14,589 0 0 0.0
2022 Q2 15,453 7 0 453.0
2022 Q1 14,336 0 0 0.0
2021 Q4 14,571 1 0 68.6
2021 Q3 16,257 0 0 0.0
2021 Q2 13,303 0 0 0.0
2021 Q1 10,131 2 1 197.4
2020 Q4 13,704 0 0 0.0
2020 Q3 10,994 0 0 0.0
2020 Q2 12,429 3 0 241.4
2020 Q1 13,952 1 1 71.7
2019 Q4 12,082 0 0 0.0
2019 Q3 14,462 0 0 0.0
2019 Q2 12,301 0 0 0.0
2019 Q1 15,529 2 0 128.8
2018 Q4 10,938 0 0 0.0
2018 Q3 17,527 1 0 57.1
2018 Q2 17,496 0 0 0.0
2018 Q1 8,822 0 0 0.0
2017 Q4 12,729 0 0 0.0
2017 Q3 14,336 0 0 0.0
2017 Q2 15,818 3 1 189.7
2017 Q1 14,100 0 0 0.0
2016 Q4 13,152 0 0 0.0
2016 Q3 16,397 1 0 61.0
2016 Q2 14,918 0 0 0.0
2016 Q1 6,173 2 0 324.0
2015 Q4 15,864 0 0 0.0
2015 Q3 11,556 0 0 0.0
2015 Q2 13,204 1 0 75.7
2015 Q1 9,594 0 0 0.0
2014 Q4 12,543 0 0 0.0
2014 Q3 16,141 1 0 62.0
2014 Q2 16,973 0 0 0.0
2014 Q1 10,354 0 0 0.0
2013 Q4 11,501 2 0 173.9
2013 Q3 16,537 0 0 0.0
2013 Q2 16,358 5 2 305.7
2013 Q1 10,226 0 0 0.0
2012 Q4 11,952 3 0 251.0
2012 Q3 16,555 0 0 0.0
2012 Q2 14,300 6 2 419.6
2012 Q1 10,178 3 0 294.8
2011 Q4 18,054 0 0 0.0
2011 Q3 18,285 0 0 0.0
2011 Q2 20,425 2 2 97.9
2011 Q1 17,955 1 0 55.7
2010 Q4 15,059 0 0 0.0
2010 Q3 16,864 8 2 474.4
2010 Q2 19,874 0 0 0.0
2010 Q1 14,796 2 0 135.2
2009 Q4 17,383 0 0 0.0
2009 Q3 20,872 4 2 191.6
2009 Q2 17,228 0 0 0.0
2009 Q1 13,718 0 0 0.0
2008 Q4 19,288 0 0 0.0
2008 Q3 20,065 3 0 149.5
2008 Q2 22,442 0 0 0.0
2008 Q1 14,382 5 2 347.7
2007 Q4 19,213 0 0 0.0
2007 Q3 18,480 13 3 703.5
2007 Q2 23,067 0 0 0.0
2007 Q1 20,926 21 7 1003.5
2006 Q4 19,583 0 0 0.0
2006 Q3 23,517 15 1 637.8
2006 Q2 14,978 17 12 1135.0
2006 Q1 20,378 2 1 98.1
2005 Q4 24,110 0 0 0.0
2005 Q3 24,371 11 2 451.4
2005 Q2 17,110 0 0 0.0
2005 Q1 15,442 0 0 0.0
2004 Q4 18,911 0 0 0.0
2004 Q3 19,176 0 0 0.0
2004 Q2 19,505 2 1 102.5
2004 Q1 14,399 3 3 208.3
2003 Q4 21,472 0 0 0.0
2003 Q3 23,385 0 0 0.0
2003 Q2 19,934 18 11 903.0
2003 Q1 18,318 0 0 0.0
2002 Q4 21,144 0 0 0.0
2002 Q3 24,775 0 0 0.0
2002 Q2 19,182 2 1 104.3
2002 Q1 18,574 0 0 0.0
2001 Q4 18,432 0 0 0.0
2001 Q3 17,566 2 1 113.9
2001 Q2 18,017 0 0 0.0
2001 Q1 15,220 0 0 0.0
2000 Q4 17,539 1 0 57.0
2000 Q3 21,282 0 0 0.0
2000 Q2 11,819 2 0 169.2
2000 Q1 8,175 0 0 0.0

Fatalities at this mine

1 recorded
May 23, 2006 KY · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator Fatality · POWERED HAULAGE
Hinkle Contracting Company LLC · Caught in, under or between a moving and a stationary object

WHILE PERFORMING MAINTENANCE ON CONVEYOR BELT EMPLOYEE WAS PINNED BETWEEN WA500 KOMATSU LOADER AND CONVEYOR BELT LINE RESULTING IN HIS DEATH.

Reportable incidents

31 on file (excluding fatalities above)

2021 · 1 incident

September 14, 2021 KY · Metal/Non-Metal groundman, yardman HANDLING OF MATERIALS
Hinkle Contracting Company LLC · Over-exertion in lifting objects

Employee had removed cover guard to put oil in reservoir. EE set the guard beside the reservoir and after adding the oil, EE and another employee went to put the guard back into place. After lifting it up in tandem they turned to the right to align when employee felt a sharp pain in their lower back.

2019 · 1 incident

February 4, 2019 KY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Hinkle Contracting Company LLC · Struck by falling object

Employee was lowering the belly pans so that EE could remove the engine oil pan because of crack. EE had a chain tied to the front lower eye weldment and ran the chain to the rear of dozer under the counterweight and then vertically tied to the hook on the crane boom to hold tension on the chain to keep the pan from dropping. The pan dropped causing EE's finger to be pinched.

2013 · 1 incident

January 18, 2013 KY · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Hinkle Contracting Company LLC · Caught in, under or between a moving and a stationary object

Working on a bearing of a tail pulley he was in the process of repositioning the tail pulley to access the bearing on the left side. After the block was removed the pulley became lodged above the conveyor frame on the mounting bolts. He attempted to free the pulley using his hands when the pulley shifted and caught the pinky finger of his right hand.

2011 · 1 incident

July 18, 2011 KY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Hinkle Contracting Company LLC · Struck by... (Not Elsewhere Classified)

Employee was using utility knife to cut flashing for conveyor feed chute skirting and cut left wrist requiring sutures.

2010 · 1 incident

October 12, 2010 KY · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Hinkle Contracting Company LLC · Caught in, under or between a moving and a stationary object

EE was releasing come-a-long from a conveyor that he had tied off while making repairs to the belting. Upon releasing the latch the cable hung, ee jerked the come-a-long with his right hand. The latch released pinching his right thumb. He went to the urgent treatment clinic and they gave him a tetanus shot and placed 2 stitches in the side of his thumb.

2009 · 1 incident

May 12, 2009 KY · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDTOOLS (NONPOWERED)
Hinkle Contracting Company LLC · Struck by... (Not Elsewhere Classified)

EE was repairing a water leak in a PVC line. He cut the line using a utility knife and was cutting towards himself, when he struck his right thumb. He was taken to the Powell County Clinic and the injury required 6 stitches. He retruned to work the next morning.

2008 · 3 incidents

June 2, 2008 KY · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Hinkle Contracting Company LLC · Struck by... (Not Elsewhere Classified)

Employee was using a 2' long pry bar to open the inspection lid on the door of a USI crusher. He was pulling bar toward himself when the bar slipped striking employee in the right corner of his mouth. The corner of the employee's mouth was cut and required 4 stitches.

May 19, 2008 KY · Metal/Non-Metal ledgeman/hand, quarry man HANDTOOLS (NONPOWERED)
Hinkle Contracting Company LLC · Struck against stationary object

Employee was cleaning chute feeding conveyor belt & struck side of conveyor support with left wrist & bruised hand. Went to Urgent Treatment Center for x-rays & found small bone in left wrist bruised. EE struck side of support brace when exiting the conveyor. Will be on restricted duty until 6-19-08.

April 24, 2008 KY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Hinkle Contracting Company LLC · Over-exertion (Not Elsewhere Classified)

EE was tightening roller bolts on under carriage of a d9r dozer. After completing the project he stood and starting walking to his truck when he felt a catch in his left knee. He went to powell clinic and knee was x rayed and he was given an anti-inflammatory medication and placed on light duty until 4/30/08 an at that time he will be re-evaluated.

2006 · 1 incident

December 11, 2006 KY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Hinkle Contracting Company LLC · Struck by... (Not Elsewhere Classified)

Employee was priming water pump & found ice formed in the pump. He was attempting to remove the ice with his pocket knife & when he closed the knife he struck his finger, requiring stitches.

1999 · 2 incidents

June 29, 1999 KY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Hinkle Contracting Company LLC · Over-exertion in lifting objects

EE WAS ASSISTING ANOTHER EE TO CHANGE O-BELT ON THE DRIVE OF A IMPACT CRUSHER. HE THINKS THAT WHILE LEFT THE MOTOR USING A PRYBAR HE STRAINED A SMUCLE IN HIS BACK. AFTER X RAYS DRS. DETERONINE D THAT HE POSSIBLY HAD STRAINED MUSCLE AND PRE-CRIBED PAIN MEDICINE TO EASE SYMTONS AND EXCUSED HIM FROM WORK UNTIL 6-6-99.

March 17, 1999 KY · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Hinkle Contracting Company LLC · Fall from machine

EE WAS INSTALLING THE SCREEN SUPPORT COLUMNS ON A NEW SCREENING TOWER. HE WAS ALIGNING THE BOLT HOLES UP WHEN HE HAD GOT OUT OF THE BUCKET TRUCK AND CLIMBED ONTO THE SCREENING BINS. HE ATTACHE D A 2 TON COMEALONG TO A LEG AND WRAPPED THE CABLE AROUND THE LEG HE WAS ALIGNING. HE POSITIONED HIMSELF ON A 12" H-BEAN AND STARTED TWISTING THE LEG. HE APPLIED TOO MUCH PRESSURE TO THE COME

1996 · 3 incidents

August 27, 1996 KY · Metal/Non-Metal ELECTRICAL
Hinkle Contracting Company LLC · Accident type, without injuries

CONTRACT HAUL TRUCKWAS GOING TO STOCKPILE TO BE LOADED AND RAISED HIS BED. THE TRUCKER IN UNATTENTIVE NOT FORGETTING THAT HIS BED WAS UP AND HUNG BED INTO THE ELECTRICK WIRES, JERKING THE UTIL ITY POLE DOWN AND STARTED A FIRE IN THE SWITCH HOUSE (EVERYTHING DESTROYED).

July 16, 1996 KY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Hinkle Contracting Company LLC · Fall onto or against objects

EE WAS TIGHTENING BOLTS ON A CRUSHER AT QUARRY AND WRENCH GAVE WAY AND HE FELL ON A PROTRUDING BOLT, STRIKING RT ARM.

May 8, 1996 KY · Metal/Non-Metal drill helper MACHINERY
Hinkle Contracting Company LLC · Caught in, under or between (Not Elsewhere Classified)

EE CAUGHT RIGHT FOOT IN HYDRAYKUC ORESS WGUIE DRILLING, FRACTURING RIGHT FOOT.

1995 · 3 incidents

November 4, 1995 KY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman ALL OTHER OCCUPATIONAL ILLNESSES
Hinkle Contracting Company LLC · Over-exertion (Not Elsewhere Classified)

EE WAS DIAGNOSED AS HAVING OSTEO ARTHRITIS AFTERAPPEARING TO HAVE A STRAIN.

October 26, 1995 KY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Hinkle Contracting Company LLC · Over-exertion in lifting objects

SHOVELING AND STATED THAT HIS BACK HAD STARTED HURTING HIM.

June 6, 1995 KY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Hinkle Contracting Company LLC · Fall from machine

EE WAS GREASING THE PLANT WHEN HE USED A CONV FOR A WALKWAY & FAILED TO USE THE LADDER GOING UP TO THE SDCREEN HE WALKED UP THE CONV & STARTED TO CLIMB OFF & SLIPPED & FELL INTO THE SCREENS DI SCHARGE BINS

1993 · 1 incident

May 5, 1993 KY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Hinkle Contracting Company LLC · Struck against a moving object

AGGREVATION OF BACK INJURY SUSTAINED ON 4-3-93, THIS WAS NOT A LOST TIME INJURY AT THE TIME OF INITIAL ALLEGATION. OPERATOR ALLEDGES THAT LOADER STRUCK A POT HOLE IN HAUL ROAD AND JERKED HIS B ACK, EMPLOYEE CONTINUED WORKING UNTIL TODAY.

1992 · 1 incident

June 17, 1992 KY · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver MACHINERY
Hinkle Contracting Company LLC · Struck by flying object

USING WEEDEATER TRIMMING GRASS AROUNDK OFFICE IT HIT PC OF BROKEN GLASS IN THE GRASS GLASS FLEW UP STRUCK EMP IN HIS R FOREARM

1991 · 1 incident

August 30, 1991 KY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Hinkle Contracting Company LLC · Over-exertion (Not Elsewhere Classified)

EMPLOYEE STATED THAT HE TWISTED HIS ANKLE ON THE JOB PRIOR TO THE END OF HIS SHIFT. HE FAILED TO MENTION THIS TO ANYONE AND WENT HOME AT HIS NORMAL QUITING TIME. ON MONDAY, LABOR DAY, 9-2-91, HE WENT TO THE EMERGENCY ROOM AT THE MOREHEAD HOSPITAL.

1990 · 1 incident

1989 · 3 incidents

September 13, 1989 KY · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Hinkle Contracting Company LLC · Over-exertion (Not Elsewhere Classified)

EMPLOYEE SAID HE STARTED TO STEP UP ON THE STEP OF ED21 EUCLID AND PULLED MUSCLE IN HIS BACK.

April 5, 1989 KY · Metal/Non-Metal outside foreman, leadman ELECTRICAL
Hinkle Contracting Company LLC · Flash burns (electric)

WHILE ENGAGING A STARTER ON MOTOR A SPRING BROKE ON THE MANUAL STARTING LEVER. THE SPRING FELL AND SHOPRTED OUT ACROSS TWO OF THE TERMINALS. THE FLASH FROM THIS CAUSED BURNS TO THE FACE AND BURNS TO THE WRIST.

1988 · 2 incidents

November 8, 1988 KY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Hinkle Contracting Company LLC · Over-exertion (Not Elsewhere Classified)

EMPL WAS CLEANING STORAGE ROOM TURNED TO LEAVE ROOM & TRIPPED. HE GRABBED HAND RAILING TO STOP FROM FALLING SPRAINING HIS WRIST WHEN GRABBING HAND RAILING.

July 21, 1988 KY · Metal/Non-Metal drill operator MACHINERY
Hinkle Contracting Company LLC · Struck against a moving object

THE DRILL OVERTURNED WHILE TRYING TO NEGOTIATE A CURVE AT THE BOTTOM OF A INCLINED HAULROAD. NO EVIDENCE OF MECHANICAL FAILURE COULD BE FOUND. THE OPERATOR FAILED TO HAVE FULL CONTROL OF THE D RILL WHILE IN MOTION.

1987 · 1 incident

September 8, 1987 KY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Hinkle Contracting Company LLC · Fall from machine

EMPLOYEE WAS SE9VICING FRONT END LOADER & FELL OFF LADDER WHEN GETTING OFF LOADER.

1986 · 1 incident

July 29, 1986 KY · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Hinkle Contracting Company LLC · Over-exertion (Not Elsewhere Classified)

EMP SAYS HE HU9T HIS NECK WHILE SHOVELING OR REPAIRING A RETUNR ROLLER ON LONG TUNNEL BELT

1985 · 2 incidents

December 2, 1985 KY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech OTHER
Hinkle Contracting Company LLC · Contact with hot objects or substances

BURNING PIPE WI7H TORCH OIL HIT MAN IN FACE AND EYE-RIGHT.

May 23, 1985 KY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Hinkle Contracting Company LLC · Struck by falling object

ROCK FELL OFF FEEDER HIT HIM IN THE BACK PULLED MUSCLE IN HIS BACK

For insurers, brokers, and safety consultants

The full compliance file on Natural Bridge Stone

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.