Mining Incidents

CENTRAL ROCK QUARRY Metal/Non-Metal

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

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Fatalities
0
Total incidents
9
Years on record
2000–2021
Latest incident
Dec 2021
Compliance record
MSHA citations since 2000
106
citations
29
significant & substantial
$19,347
proposed penalties
$19,040
paid to date
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 6,717 1 0 148.9
2025 Q3 6,112 0 0 0.0
2025 Q2 4,034 0 0 0.0
2025 Q1 6,889 0 0 0.0
2024 Q4 7,604 0 0 0.0
2024 Q3 3,747 0 0 0.0
2024 Q2 8,580 0 0 0.0
2024 Q1 3,464 0 0 0.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

9 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