Mining Incidents

CENTRAL ROCK QUARRY Metal/Non-Metal

Greensboro, Guilford County, NC  ·  Active
MSHA Mine ID: 3100050

CENTRAL ROCK QUARRY has $19K in proposed MSHA penalties and $0 outstanding across 7 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
26
Years on record
1985–2021
Latest incident
Dec 2021
Compliance record
MSHA citations since 2000
106
citations
29
significant & substantial
$19,347
proposed penalties
$19,040
paid to date
98% of proposed penalties paid to date, a $307 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
71
inspections on record
1,332
inspection hours
8.0
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.
106 citations across 1,332 inspection hours.
Source: MSHA inspections data, updated weekly.

CENTRAL ROCK QUARRY has $19K in proposed MSHA penalties and $0 outstanding across 7 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.
$19K
proposed penalties
$19K
current assessed
$19K
paid to date
$0
outstanding
101 assessments are final orders; 7 contested dockets.
As of the most recent assessment on 2025-12-02.
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 6,717 1 0 148.9
2025 Q3 6,112 0 0 0.0
2025 Q2 8,404 0 0 0.0
2025 Q1 6,889 0 0 0.0
2024 Q4 7,604 0 0 0.0
2024 Q3 8,714 0 0 0.0
2024 Q2 9,429 0 0 0.0
2024 Q1 8,056 0 0 0.0
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 8,112 0 0 0.0
2023 Q3 8,142 0 0 0.0
2023 Q2 9,026 0 0 0.0
2023 Q1 9,202 0 0 0.0
2022 Q4 8,743 2 0 228.8
2022 Q3 10,493 0 0 0.0
2022 Q2 8,965 0 0 0.0
2022 Q1 7,635 0 0 0.0
2021 Q4 8,654 0 0 0.0
2021 Q3 7,748 0 0 0.0
2021 Q2 7,231 0 0 0.0
2021 Q1 6,824 0 0 0.0
2020 Q4 8,058 0 0 0.0
2020 Q3 7,952 0 0 0.0
2020 Q2 5,853 0 0 0.0
2020 Q1 8,487 0 0 0.0
2019 Q4 9,189 0 0 0.0
2019 Q3 10,293 0 0 0.0
2019 Q2 9,914 0 0 0.0
2019 Q1 10,692 0 0 0.0
2018 Q4 11,319 1 0 88.3
2018 Q3 12,421 0 0 0.0
2018 Q2 10,286 3 1 291.7
2018 Q1 9,949 0 0 0.0
2017 Q4 10,831 0 0 0.0
2017 Q3 10,174 0 0 0.0
2017 Q2 10,855 1 0 92.1
2017 Q1 10,225 0 0 0.0
2016 Q4 11,179 0 0 0.0
2016 Q3 11,770 0 0 0.0
2016 Q2 10,237 0 0 0.0
2016 Q1 9,520 0 0 0.0
2015 Q4 11,069 0 0 0.0
2015 Q3 9,916 0 0 0.0
2015 Q2 10,627 0 0 0.0
2015 Q1 9,208 0 0 0.0
2014 Q4 13,255 1 1 75.4
2014 Q3 15,554 0 0 0.0
2014 Q2 10,260 1 0 97.5
2014 Q1 8,165 0 0 0.0
2013 Q4 9,491 4 0 421.5
2013 Q3 9,805 4 1 408.0
2013 Q2 10,693 0 0 0.0
2013 Q1 10,649 0 0 0.0
2012 Q4 13,348 7 2 524.4
2012 Q3 14,383 0 0 0.0
2012 Q2 16,707 12 3 718.3
2012 Q1 14,473 9 1 621.8
2011 Q4 15,540 0 0 0.0
2011 Q3 17,632 0 0 0.0
2011 Q2 14,379 11 5 765.0
2011 Q1 9,760 1 0 102.5
2010 Q4 15,021 0 0 0.0
2010 Q3 14,760 1 0 67.8
2010 Q2 12,396 2 0 161.3
2010 Q1 6,625 0 0 0.0
2009 Q4 11,601 0 0 0.0
2009 Q3 8,396 11 4 1310.1
2009 Q2 8,163 0 0 0.0
2009 Q1 2,419 1 0 413.4
2008 Q4 6,337 0 0 0.0
2008 Q3 7,719 0 0 0.0
2008 Q2 9,579 0 0 0.0
2008 Q1 8,400 0 0 0.0
2007 Q4 10,096 0 0 0.0
2007 Q3 11,686 0 0 0.0
2007 Q2 11,475 0 0 0.0
2007 Q1 10,473 0 0 0.0
2006 Q4 10,872 1 0 92.0
2006 Q3 11,447 0 0 0.0
2006 Q2 11,783 0 0 0.0
2006 Q1 11,251 0 0 0.0
2005 Q4 10,812 0 0 0.0
2005 Q3 13,102 5 0 381.6
2005 Q2 12,923 0 0 0.0
2005 Q1 10,942 5 2 457.0
2004 Q4 11,622 0 0 0.0
2004 Q3 9,893 5 2 505.4
2004 Q2 10,677 0 0 0.0
2004 Q1 9,727 2 1 205.6
2003 Q4 11,016 0 0 0.0
2003 Q3 12,053 0 0 0.0
2003 Q2 9,542 0 0 0.0
2003 Q1 8,486 0 0 0.0
2002 Q4 9,200 0 0 0.0
2002 Q3 12,389 3 2 242.2
2002 Q2 13,304 0 0 0.0
2002 Q1 12,535 1 1 79.8
2001 Q4 13,393 0 0 0.0
2001 Q3 13,488 1 0 74.1
2001 Q2 13,681 0 0 0.0
2001 Q1 12,420 2 0 161.0
2000 Q4 14,306 0 0 0.0
2000 Q3 14,247 0 0 0.0
2000 Q2 12,514 6 3 479.5
2000 Q1 10,562 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

26 on file

2021 · 1 incident

December 9, 2021 NC · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Martin Marietta Materials Inc · Struck against stationary object

Employee was removing metal from conveyor and struck finger against the magnet.

2018 · 1 incident

August 6, 2018 NC · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
Martin Marietta Materials Inc · Caught in, under or between a moving and a stationary object

Employee was assisting in crusher bowl removal and was moving pusher arm into position. Hand slipped on the cylinder allowing finger to be pinched in the retracting pusher arm.

2016 · 1 incident

November 4, 2016 NC · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker HANDLING OF MATERIALS
Martin Marietta Materials Inc · Caught in, under or between (Not Elsewhere Classified)

Employees were beginning to pour a crusher. One employee was removing the bolts from the box located over the crusher. One of the bolts was bent and would not pull out of the box. The employee reached to try to pull the bolt out, the box shifted pinching the employee's tip of the finger between the box and the head of the bolt.

2015 · 1 incident

October 31, 2015 NC · Metal/Non-Metal mine manager, mine foreman, mine owner HANDLING OF MATERIALS
Martin Marietta Materials Inc · Struck by... (Not Elsewhere Classified)

An employee was rolling a piece of scrap metal into a machine bucket when a burr caught his glove. This resulted in the piece of metal smashing his pinky finger. The finger required stitches.

2008 · 1 incident

October 21, 2008 NC · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Martin Marietta Materials Inc · Fall to lower level, (Not Elsewhere Classified)

EE was working on welding shop roof performing repairs to roof. He was wearing safety harness & rope lanyard. When he relocated towards edge of the roof to be lowered down by the man-basket, he stepped on a skylight causing him to fall through. Slack created in the lanyard caused him to strike the floor. Results, cut on rt arm 3 stitches, fracture to lt elbow. RTW next day, lt duty

2007 · 1 incident

July 20, 2007 NC · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Martin Marietta Materials Inc · Caught in, under or between a moving and a stationary object

EE was assisting in changing out a motor for the Primary Crusher. Upon removing the old v-belt sheave, the injured EE pulled on the sheave to check if it was tight, the sheave then slid down the shaft and fell on the EE's finger, resulting in a fracture.

2005 · 1 incident

July 22, 2005 NC · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Martin Marietta Materials Inc · Caught in, under or between a moving and a stationary object

EMPLOYEE WAS TAKING JAM NUT LOOSE ON BOLT THAT HOLDS JAM BREAKER TO STRUCTURE WITH A 1" DRIVE AIR WRENCH. THE JAM NUT CAME LOOSE CAUSING THE NUT TO TRAVEL UP THE BOLT. HIS RIGHT THUMB WAS PINNED BETWEEN PART OF THE TELEDYNE AND THE AIR WRENCH. HE HAD TO REVERSE WRENCH TO GET HIS FINGER BACK OUT

2004 · 1 incident

December 15, 2004 NC · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Martin Marietta Aggregates · Struck by falling object

THREE EMPLOYEES WERE IN THE PROCESS OF REMOVING A PIECE OF METAL 3/4" X 8' LONG FROM FEEDER WHEN THE METAL SLIPPED, CRUSHING EE'S SMALL FINGER ON LEFT HAND. BROKEN BONE. MEDICAL ONLY.

2000 · 1 incident

December 27, 2000 NC · Metal/Non-Metal coal/ore shovel operator, shoveler, power shoveler HANDLING OF MATERIALS
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

EE WAS HELPING REMOVE BOLTS FROM CUTTING EDGE HE GRABBED BOLT WITH HIS LEFT HAND WHICH HAD A GLOVE ON THE BOLT TURNED CAUSING A CUT IN THEPALMOF HIS LEFT HAND

1997 · 1 incident

May 5, 1997 NC · Metal/Non-Metal coal/ore shovel operator, shoveler, power shoveler HANDTOOLS (NONPOWERED)
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

EE WAS CHANGING HYDRAULIC LINE ON DEMAG SHOVEL WHEN WRENCH SLIPPED OFF STRICKING EE IN CHIN.

1995 · 2 incidents

December 28, 1995 NC · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger SLIP OR FALL OF PERSON
Martin Marietta Aggregates · Fall from machine

EMPLOYEE WENT TO STOP OFF A CAT 245 SHOVEL,THE STOP WAS COVERED WITH FROZEN DIRT HIS RIGHT FOOT SLIPPED AND HE FELL LANDING ON HIS RIGHT FOOT CAUSING FRACTURE TO RIGHT HEEL.

January 31, 1995 NC · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Martin Marietta Aggregates · Fall from machine

EE WAS CLIMBING DOWN FROM L-190 LOADER WHEN HE STEPED OFF LAST STEP TO THE GROUND HIS FOOT LANDED ON A 3"-4" SURGE STONE CAUSING FRACTURE ON LEFT FOOT.

1994 · 1 incident

August 4, 1994 NC · Metal/Non-Metal mine manager, mine foreman, mine owner HANDTOOLS (NONPOWERED)
Martin Marietta Aggregates · Struck against stationary object

EE WAS HELPING CHANGE WIRE CLOTH ON DEISTER 6' X 16' SCREEN. USING PIPE WRENCH 0N WORN BOLT HEAD--WRENCH SLIPPED AND EE'S ARM STRUCK WIRE ON WORN CLOTH. WIRE PUNCTURED EE'S FOREARM.

1991 · 2 incidents

August 30, 1991 NC · Metal/Non-Metal coal/ore shovel operator, shoveler, power shoveler HANDLING OF MATERIALS
Martin Marietta Aggregates · Caught in, under or between a moving and a stationary object

EMPLOYEE WAS HELPING CHANG EOIL FILTERS. AT A GIVE SIGNAL, EMPLOYEE WAS TO LOWER FILTER THAT OTHER EMPLOYEE HAD LOOSENED. FILTER CAME LOOSE AND FELL. EMPLOYEE TRIED TO CATCH FILTER. MASHED FINGER AGAINST SHOVEL FRAME.

May 21, 1991 NC · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

EE WAS ATTEMPTING TO ALTER A WRENCH TO FIT A CERTAIN JOB. HAD WRENCH IN VISA AND STRUCK WRENCH WITH A HAMMER WRENCH BROKE AND TRAVELED APPROX. 15 FT AND STRUCK FELLOW EE IN THE FACE.

1989 · 1 incident

January 20, 1989 NC · Metal/Non-Metal MACHINERY
Martin Marietta Aggregates · Caught in, under or between (Not Elsewhere Classified)

EMPLOYEE WAS HELPING DISMANTCE CONE CRUSHER. CABLE WAS FASTENED TO LOCKNUT OVER AND TO LOADER BUCKET. THE CABLE SLIPPED DOWN FROM THE LOCKOUT COVER EMPLOYEE ATTEMPTED TO PUT CABLE BACK IN PL ACE LOADER MOVED BACKWARD TIGHTENED CABLE. EMPLOYEES FINGER WAS CAUGHT BETWEEN CABLE AND LOCKNUT COVER.

1988 · 2 incidents

December 1, 1988 NC · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Martin Marietta Aggregates · Struck against stationary object

EMPL REPLACING AIR FILTER ELEMENT.THERE WAS A BURR ON SCREEN SURROUNDING ELEMENT.CUT EMPL PALM AS HE WAS REPLACING ELEMENT.

July 20, 1988 NC · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS ASSISTING IN CHANGING HOIST CABLE WHEN CABLE CAME TO THE END OF THE DRUM, IT CAME LOOSE QUICKLY STRIKING EMPLOYEE ON LEFT HEEL CAUSING PUNCTURE WOUNDS.

1987 · 2 incidents

August 26, 1987 NC · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Martin Marietta Aggregates · Struck by flying object

EMP WAS USING 8LEDGE HAMMER TO TIGHTEN WEDGE IN 66 FC CRUSHER. EMP STRUCK WEDGE WITH HAMMER AND A PIECE OF STEEL BROKE OFF THE HAMMER HEAD AND STRUCK EMPLOYEES LEG

July 24, 1987 NC · Metal/Non-Metal coal/ore shovel operator, shoveler, power shoveler MACHINERY
Martin Marietta Aggregates · Struck by flying object

EMPLOYEE WAS OP9RATING DEMAG SHOVEL-WHEN HE EMPTIED SHOVEL DIPPER (BUCKET) INTO PIT TRUCK A SMALL STONE CAME INTO SHOVEL CAB AND STRUCK EMPLOYY.EE 'S LEFT HAND. 3

1986 · 3 incidents

August 28, 1986 NC · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
Martin Marietta Aggregates · Struck by falling object

EE WAS HELPING 9ESTART LOADED CONVEYOR. ONE ROCK STRUCK THE MAGNET OVER THE BELT & CAUSED A ROCK TO FALL FROM THE BELT & S TRIKE EES FOOT.

April 2, 1986 NC · Metal/Non-Metal belt foreman, maintenance foreman, maintenance supervisor POWERED HAULAGE
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

EMP WAS REACHIN1 FOR THE TEMPERATURE INDICATER CABLE TO RE-ATTACH IT. ENGINE WAS RUNNING. HIS FINGER CAME IN CONTACT WITH THE ENGINE FAN BLADES

January 17, 1986 NC · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Martin Marietta Aggregates · Struck by falling object

EMPL HELPING RE1LACE SCREEN CLOTH.ANOTHER EMPL HANDED SIDE RAIL TO I.NAME-TURNED LOOSE TO QUICK AND SIDE RAIL FELL AND MASHED I.NAME FINGER.

1985 · 3 incidents

December 17, 1985 NC · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Martin Marietta Aggregates · Fall from machine

EMP WAS CLEARIN1 TRUCK WITNSHIELD. THERE WAS FROST ON TRUCK FENDER. HIS FOOT SLIPPED AND HE FELL TO THE GROUND HIS R LEG STRUCK TRUCK BUMPER

October 4, 1985 NC · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

EMP WAS WORKING3ON CONVEYOR BELT - USING A KNIFE - THE KNIFE SLIPPED - CAUSING LACERATION TO LEFT THUMB

July 1, 1985 NC · Metal/Non-Metal welder (shop) MACHINERY
Martin Marietta Aggregates · Contact with hot objects or substances

EMPLOYEE WAS USING HIS WELDING MACHINE AND A PIECE OF HOT SLAG CAME OFF OF THE METAL AND DROPPED INTO HIS LEFT SHOE.SLAG STOPPED AT HIS LEFT HEEL AND BURNED A SMALL AREA.AREA BECAME INFECTED A AND EMPLOYEE WENT TO DOCTOR.7-I/ 7-20-859

For insurers, brokers, and safety consultants

The full compliance file on CENTRAL ROCK QUARRY

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.