Mining Incidents

North Troy Metal/Non-Metal

Controlled by Vulcan Materials Company
Mill Creek, Johnston County, OK  ·  Active
MSHA Mine ID: 3401905

North Troy has $20K in proposed MSHA penalties and $0 outstanding across 5 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
23
Years on record
2005–2025
Latest incident
Jan 2025
Compliance record
MSHA citations since 2006
109
citations
25
significant & substantial
$20,165
proposed penalties
$19,294
paid to date
96% of proposed penalties paid to date, a $871 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2006
46
inspections on record
1,142
inspection hours
9.5
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.
109 citations across 1,142 inspection hours.
Source: MSHA inspections data, updated weekly.

North Troy has $20K in proposed MSHA penalties and $0 outstanding across 5 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.
$20K
proposed penalties
$19K
current assessed
$19K
paid to date
$0
outstanding
107 assessments are final orders; 5 contested dockets.
As of the most recent assessment on 2025-10-16.
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 39,543 6 2 151.7
2025 Q3 36,865 0 0 0.0
2025 Q2 35,095 2 0 57.0
2025 Q1 29,052 0 0 0.0
2024 Q4 30,783 0 0 0.0
2024 Q3 37,016 0 0 0.0
2024 Q2 32,518 0 0 0.0
2024 Q1 32,615 4 0 122.6
Show 75 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 28,033 0 0 0.0
2023 Q3 31,511 0 0 0.0
2023 Q2 29,818 2 0 67.1
2023 Q1 29,557 0 0 0.0
2022 Q4 28,062 1 0 35.6
2022 Q3 29,538 0 0 0.0
2022 Q2 30,639 0 0 0.0
2022 Q1 26,363 0 0 0.0
2021 Q4 26,245 1 1 38.1
2021 Q3 28,160 0 0 0.0
2021 Q2 25,997 1 0 38.5
2021 Q1 23,399 0 0 0.0
2020 Q4 24,474 2 0 81.7
2020 Q3 30,201 0 0 0.0
2020 Q2 28,080 0 0 0.0
2020 Q1 26,827 1 1 37.3
2019 Q4 25,692 1 0 38.9
2019 Q3 25,293 0 0 0.0
2019 Q2 25,590 7 1 273.5
2019 Q1 25,487 2 1 78.5
2018 Q4 24,707 0 0 0.0
2018 Q3 26,048 0 0 0.0
2018 Q2 25,298 3 1 118.6
2018 Q1 23,400 2 2 85.5
2017 Q4 21,522 0 0 0.0
2017 Q3 23,445 0 0 0.0
2017 Q2 22,306 1 1 44.8
2017 Q1 21,322 3 0 140.7
2016 Q4 21,941 0 0 0.0
2016 Q3 24,751 5 0 202.0
2016 Q2 22,980 0 0 0.0
2016 Q1 25,465 4 1 157.1
2015 Q4 25,433 0 0 0.0
2015 Q3 26,972 0 0 0.0
2015 Q2 23,080 2 1 86.7
2015 Q1 20,914 2 0 95.6
2014 Q4 18,274 0 0 0.0
2014 Q3 15,945 0 0 0.0
2014 Q2 17,861 2 1 112.0
2014 Q1 16,191 6 1 370.6
2013 Q4 15,523 0 0 0.0
2013 Q3 15,516 4 1 257.8
2013 Q2 13,176 0 0 0.0
2013 Q1 12,120 4 2 330.0
2012 Q4 8,503 0 0 0.0
2012 Q3 8,484 0 0 0.0
2012 Q2 9,406 0 0 0.0
2012 Q1 8,118 5 0 615.9
2011 Q4 8,907 0 0 0.0
2011 Q3 10,745 0 0 0.0
2011 Q2 9,811 0 0 0.0
2011 Q1 6,478 0 0 0.0
2010 Q4 9,404 0 0 0.0
2010 Q3 8,502 1 0 117.6
2010 Q2 9,511 0 0 0.0
2010 Q1 9,188 7 1 761.9
2009 Q4 10,627 0 0 0.0
2009 Q3 16,621 0 0 0.0
2009 Q2 16,416 0 0 0.0
2009 Q1 15,538 0 0 0.0
2008 Q4 27,339 8 4 292.6
2008 Q3 21,418 0 0 0.0
2008 Q2 25,453 3 0 117.9
2008 Q1 31,476 6 1 190.6
2007 Q4 31,922 0 0 0.0
2007 Q3 31,876 0 0 0.0
2007 Q2 33,048 3 1 90.8
2007 Q1 34,996 0 0 0.0
2006 Q4 35,430 8 1 225.8
2006 Q3 32,800 0 0 0.0
2006 Q2 30,329 0 0 0.0
2006 Q1 30,316 0 0 0.0
2005 Q4 2,328 0 0 0.0
2005 Q3 2,914 0 0 0.0
2005 Q2 428 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

23 on file

2025 · 1 incident

January 14, 2025 OK · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator OTHER
Vulcan Construction Materials, LLC · Unclassified, insufficient data

Employee had a periodic screening chest x-ray read by two B-readers using the ILO procedures. The X-ray was characterized as consistent with pneumoconiosis with readings of 2/3 and 3/2. Damage or impairment cannot be determined solely by reading chest x-ray films. This report is being submitted to satisfy MSHA program policy letter P92-III-2.

2024 · 1 incident

August 13, 2024 OK · Metal/Non-Metal motorman, motor person, swamper, switchman, locomotive operator HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion in lifting objects

On 8/13/24, employee was throwing away a 20 lb scrap pump into metal waste bin when EE felt discomfort in EE's back right side. EE used 1st aid measures to help with the discomfort for 2 weeks. When the pain did not resolve EE sought medical treatment on 8/27, were diagnosed with a back strain and issued restrictions & medications.

2023 · 1 incident

March 21, 2023 OK · Metal/Non-Metal shuttle car operator, mantrip operator, ramcar operator, rail runner, buggy operator SLIP OR FALL OF PERSON
Vulcan Construction Materials, LLC · Fall onto or against objects

Employee was making their way to the back of a locomotive via the walkway and slipped on a step. They landed on their left knee. Later in the morning employee was still feeling discomfort and asked to go to the clinic. Employee was evaluated and referred for further evaluation and given light-duty restrictions.

2022 · 1 incident

September 12, 2022 OK · Metal/Non-Metal outside foreman, leadman HANDTOOLS (NONPOWERED)
Vulcan Construction Materials, LLC · Over-exertion in wielding or throwing objects

Employee was swinging a hammer in a downward motion when the head of the hammer flew off, causing the employee to increase momentum. The sudden increase in momentum resulted in pain in the employees left shoulder.

2020 · 1 incident

2018 · 2 incidents

November 12, 2018 OK · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion (Not Elsewhere Classified)

EE was changing screen in screen #5. As EE was attempting to exit the area EE set right leg to side and felt pain in knee. The pain immobilized use of right leg and EE needed assistance to vehicle. EE was escorted to ER by spouse.

2016 · 1 incident

April 27, 2016 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion in lifting objects

Employee tore a ligament in EE's back while lifting a skid steer tire.

2015 · 5 incidents

November 24, 2015 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech DISORDERS (REPEATED TRAUMA)
Vulcan Construction Materials, LLC · Over-exertion (Not Elsewhere Classified)

EMPLOYEE FILED WORK COMP ON 11/24/2015 FOR CARPAL TUNNEL IN BOTH WRISTS. ON 6/20/2017 HE HAD SURGERY ON LEFT WRIST.

October 7, 2015 OK · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Vulcan Construction Materials, LLC · Fall from machine

Employee lost his balance while exiting loader and fell to the ground. He sought medical attention and is currently losing time.

June 30, 2015 OK · Metal/Non-Metal electrician, lineman HANDTOOLS (NONPOWERED)
Vulcan Construction Materials, LLC · Struck by... (Not Elsewhere Classified)

Employee was removing a new Hawkbill flip knife from it's plastic packaging when his hand was cut by the blade, requiring two stitches.

May 15, 2015 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Caught in, under or between a moving and a stationary object

Employee experienced a laceration on his finger while assisting another employee with a belt replacement on a conveyor. He sought medical attention, received 4 stitches and was released to full duty.

February 6, 2015 OK · Metal/Non-Metal dryer operator, kiln operator, dry plant operator, fluid operator, bed dryer operator HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion in pulling or pushing objects

Employee was performing maintenance on a conveyor when he felt pain in his right shoulder. After seeking medical attention on Feburary 9, 2015 the injury was determined not to be work related. On December 23, 2015 a determination was made that this injury was work related. This is being reported within 10 working days of this notification.

2014 · 2 incidents

June 15, 2014 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Materials, Inc. · Struck by... (Not Elsewhere Classified)

While assembling loader tire bead band became bound. Trying to seat the band the tech struck the top portion of bead band and lower portion sprung back striking tech in the upper abdominal area.

April 18, 2014 OK · Metal/Non-Metal utility man, shift tech, service/dump truck operator DUST DISEASE OF LUNGS
Martin Marietta Materials, Inc. · Inhalation of radiations, caustics, toxic and noxious substances

Received results indicating employee reached the MSHA levels of silicosis.

2013 · 2 incidents

May 28, 2013 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Martin Marietta Materials, Inc. · Struck by... (Not Elsewhere Classified)

Tech was backed up to a 777C wheel to install wheel studs. The hooks were too small to properly fit in the hole to lock hold. Tech was holding the hook in place and when the load hit the hook, it slipped out and caused nail avulsion on Left Middle finger.

March 17, 2013 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Martin Marietta Materials, Inc. · Over-exertion (Not Elsewhere Classified)

Climbing down ladder from top deck station #3, when knee twisted & popped. Employee was done with work on the top deck Station #3, as he went to the ladder to get down he turned sideways to get into the ladder and popped his left knee. This first aid incident did not reveal to require surgery until May.

2012 · 1 incident

November 13, 2012 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Martin Marietta Materials, Inc. · Struck against a moving object

DRIVING HAUL TRUCK AND HIT BUMP IN THE ROAD. HIS SEAT CAME BACK DOWN AND HIT HIS ELBOW ON THE FIXED ARM REST ATTACHED TO DOOR.

2010 · 2 incidents

November 2, 2010 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Materials, Inc. · Over-exertion (Not Elsewhere Classified)

Employee was changing out worn brake shoes on a company owned railcar. While using a new brake shoe to tap worn brake shoe out, felt a pop in his left shoulder and experienced pain. Immediately reported to supervisor but did not want to go to the clinic. Went to clinic on 11/08/2010 because of continued pain in left shoulder.

October 19, 2010 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Materials, Inc. · Caught in, under or between (Not Elsewhere Classified)

Employee was flipping gates to switch from 57 to 467 in Station 6. Went to flip gate over and it didn't shut all the way. Employee pulled it back to shut it the rest of the way and didn't let go of it in time resulting in his middle finger on left hand being smashed.

2007 · 1 incident

2005 · 2 incidents

December 21, 2005 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
Martin Marietta Materials, Inc. · Caught in, under or between (Not Elsewhere Classified)

A crew of 4 men were installing a belt, using a forklift and boom truck. Two employees were watching. One stationed at the tail pulley; one between the tail pulley & boom truck. The Forklift was on the opposite side of the conveyor pulling the belt. As the belt went around the pulley the employee reached in. The belt jumped and pulled his hand into the tail pulley.

August 9, 2005 OK · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management FIRE
Martin Marietta Materials, Inc. · Contact with hot objects or substances

EE WAS DRILLING. HE TURNED UP SETTINGS ON COMPRESSOR. APPROX 5 MIN AFTER TURNING UP THE PRESSURE, HOSE CARRYING AN AIR/OIL MIXTURE BLEW. HOSE WAS NEXT TO COOLING FAN WHICH BLEW THE MIXTURE INTO THE TURBO ON THE ENGINE & MIXTURE IGNITED. HE LOOSENED HARD HAT & RECEIVED 2ND DEG BURNS ON HIS HEAD. HE THEN PUT THE FIRE OUT W/THE EXTINGUISHER IN THE RIG. FIRE LASTED 3-4 MIN.

For insurers, brokers, and safety consultants

The full compliance file on North Troy

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.