WHILE PERFORMING MAINTENANCE ON CONVEYOR BELT EMPLOYEE WAS PINNED BETWEEN WA500 KOMATSU LOADER AND CONVEYOR BELT LINE RESULTING IN HIS DEATH.
Natural Bridge Stone Metal/Non-Metal
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
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This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.Natural Bridge Stone has $144K in proposed MSHA penalties and $1K outstanding across 6 contested dockets.
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Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.ⓘ
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.| 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 Hide 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 recordedReportable incidents
31 on file (excluding fatalities above)2021 · 1 incident
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
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
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
Employee was using utility knife to cut flashing for conveyor feed chute skirting and cut left wrist requiring sutures.
2010 · 1 incident
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
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
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.
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.
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
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
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.
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
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).
EE WAS TIGHTENING BOLTS ON A CRUSHER AT QUARRY AND WRENCH GAVE WAY AND HE FELL ON A PROTRUDING BOLT, STRIKING RT ARM.
EE CAUGHT RIGHT FOOT IN HYDRAYKUC ORESS WGUIE DRILLING, FRACTURING RIGHT FOOT.
1995 · 3 incidents
EE WAS DIAGNOSED AS HAVING OSTEO ARTHRITIS AFTERAPPEARING TO HAVE A STRAIN.
SHOVELING AND STATED THAT HIS BACK HAD STARTED HURTING HIM.
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
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
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
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
CUT PEICE OF METAL PICKED UP PULLED MUSCLE.
1989 · 3 incidents
EMPL WAS LIFTING A 50LB BAG OF ANFO WHEN HE WENT TO THE BAG HE PULLED AND STRAINED A MUSCLE IN HIS LOWER BACK
EMPLOYEE SAID HE STARTED TO STEP UP ON THE STEP OF ED21 EUCLID AND PULLED MUSCLE IN HIS BACK.
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
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.
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
EMPLOYEE WAS SE9VICING FRONT END LOADER & FELL OFF LADDER WHEN GETTING OFF LOADER.
1986 · 1 incident
EMP SAYS HE HU9T HIS NECK WHILE SHOVELING OR REPAIRING A RETUNR ROLLER ON LONG TUNNEL BELT
1985 · 2 incidents
BURNING PIPE WI7H TORCH OIL HIT MAN IN FACE AND EYE-RIGHT.
ROCK FELL OFF FEEDER HIT HIM IN THE BACK PULLED MUSCLE IN HIS BACK
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.