Mining Incidents

Randolph Deep Mine: 1 recorded fatality Metal/Non-Metal

Randolph, Clay County, MO  ·  Active
MSHA Mine ID: 2302308

Randolph Deep Mine has $180K in proposed MSHA penalties and $642 outstanding across 18 contested dockets, plus health sampling and the full incident record.

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Fatalities
1
Total incidents
34
Years on record
2009–2025
Latest incident
Oct 2025
Compliance record
MSHA citations since 2005
423
citations
113
significant & substantial
$180,172
proposed penalties
$149,240
paid to date
83% of proposed penalties paid to date, a $30,932 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2005
184
inspections on record
5,870
inspection hours
7.2
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.
423 citations across 5,870 inspection hours.
Source: MSHA inspections data, updated weekly.

Randolph Deep Mine has $180K in proposed MSHA penalties and $642 outstanding across 18 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.
$180K
proposed penalties
$150K
current assessed
$149K
paid to date
$642
outstanding
404 assessments are final orders; 18 contested dockets.
Of $83K in penalties contested before the Commission, $52K was upheld in final decisions.
As of the most recent assessment on 2026-04-22.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
27.6%
significant & substantial
2.7%
high negligence or reckless
27.6%
reasonably likely or greater
58.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.2% none, 22.2% low, 74.9% moderate, 2.7% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
54 citations taken to the federal commission · 13% of citations on record
  • Settled 36 · 67%
  • Stood as issued 13 · 24%
  • Vacated or withdrawn 5 · 9%
77%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 22 decided S&S contests · industry: 79%
37%
Penalty reduction in decided contests
$85K proposed, $54K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2024-01-11.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
CENT 2024-0095 Settlement 2024 $40K → $27K
CENT 2010-1047M Dismissal Lesnick 2011 $9K → $7K
CENT 2017-0326 Settlement Paez 2017 $7K → $467
CENT 2015-0055 Settlement Miller 2015 $4K → $3K
CENT 2015-0195 Settlement Miller 2015 $4K → $2K
CENT 2015-0054 Settlement Miller 2015 $4K → $4K
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2026-07-22
31%
of limit-tested samples over the exposure limit
233
samples
212
limit-tested
Most sampled contaminants
  • Diesel particulate (total carbon)11237 over
  • Quartz, respirable, >1% Qtz7826 over
  • Nuisance dust, total, <1% Qtz134 over
  • TC as EC @ 35072 over
Show the individual readings (100)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-10-29 TC @ 160 161 160 1.01 Blaster, Powder Gang
2024-05-15 TC @ 160 499 160 3.12 Truck Driver
2024-05-01 TC @ 160 204 160 1.28 Blaster, Powder Gang
2024-05-01 TC from EC @ 160 230 160 1.44 Blaster, Powder Gang
2024-04-17 TC @ 160 185 160 1.16 Drill Operator, Jumbo Perc.
2024-04-17 TC @ 160 343 160 2.14 Blaster, Powder Gang
2024-04-17 EC @ 160 276 160 1.73 Blaster, Powder Gang
2023-08-17 TC @ 160 186 160 1.16 Blaster, Powder Gang
2020-08-19 Nuisance dust, total, <1% Qtz 61.3 10 6.13 Utility Man
2019-04-10 Nuisance dust, total, <1% Qtz 21.87 10 2.19 Cleanup Man
2019-04-10 Nuisance dust, total, <1% Qtz 13.93 10 1.39 Utility Man
2019-04-10 Nuisance dust, total, <1% Qtz 34.97 10 3.50 Utility Man
2018-11-07 TC @ 160 585 160 3.66 Front-end Loader Operator
2018-09-18 TC @ 160 206 160 1.29 Blaster, Powder Gang
2018-09-18 TC from EC @ 160 200 160 1.25 Blaster, Powder Gang
2017-09-19 TC @ 160 194 160 1.21 Truck Driver
2016-12-07 TC @ 160 339 160 2.12 Bobcat Operator
2016-12-07 TC @ 160 225 160 1.41 Front-end Loader Operator
2016-12-07 TC from EC @ 160 194 160 1.21 Front-end Loader Operator
2016-12-07 TC from EC @ 160 169 160 1.06 Bobcat Operator
2016-12-07 TC @ 160 179 160 1.12 Scaling (mechanical)
2016-05-03 EC @ 160 210 160 1.31 Blaster, Powder Gang
2016-05-03 TC @ 160 289 160 1.81 Blaster, Powder Gang
2016-04-06 EC @ 160 197 160 1.23 Blaster, Powder Gang
2016-04-06 TC @ 160 292 160 1.83 Blaster, Powder Gang
2016-02-24 EC @ 160 193 160 1.21 Blaster, Powder Gang
2016-02-24 TC @ 160 168 160 1.05 Truck Driver
2016-02-24 TC @ 160 316 160 1.98 Blaster, Powder Gang
2016-01-06 EC @ 160 167 160 1.04 Truck Driver
2016-01-06 EC @ 160 213 160 1.33 Front-end Loader Operator
2016-01-06 TC @ 160 268 160 1.68 Truck Driver
2016-01-06 TC from EC @ 160 239 160 1.49 Truck Driver
2016-01-06 EC @ 160 441 160 2.76 Blaster, Powder Gang
2016-01-06 TC @ 160 696 160 4.35 Blaster, Powder Gang
2016-01-06 TC @ 160 256 160 1.60 Front-end Loader Operator
2015-03-25 TC @ 160 220 160 1.38 Truck Driver
2015-03-25 EC @ 160 191 160 1.19 Truck Driver
2015-03-25 EC @ 160 201 160 1.26 Front-end Loader Operator
2015-03-25 TC @ 160 238 160 1.49 Front-end Loader Operator
2015-03-06 TC @ 160 171 160 1.07 Scaling (mechanical)
2015-03-06 EC @ 160 272 160 1.70 Front-end Loader Operator
2015-03-06 EC @ 160 474 160 2.96 Truck Driver
2015-03-06 TC @ 160 324 160 2.03 Front-end Loader Operator
2015-03-06 TC @ 160 619 160 3.87 Truck Driver
2014-09-16 TC @ 160 233 160 1.46 Utility Man
2014-09-16 EC @ 160 182 160 1.14 Utility Man
2014-09-16 EC @ 160 172 160 1.08 Utility Man
2014-09-16 TC @ 160 186 160 1.16 Utility Man
2012-12-11 TC from EC @ 160 212 160 1.33 Front-end Loader Operator
2012-12-11 TC @ 160 203 160 1.27 Front-end Loader Operator
2012-11-07 TC @ 160 237 160 1.48 Mechanic
2012-11-07 TC @ 160 258 160 1.61 Front-end Loader Operator
2012-11-07 EC @ 160 201 160 1.26 Front-end Loader Operator
2012-11-07 EC @ 160 183 160 1.14 Mechanic
2012-05-23 TC @ 160 190 160 1.19 Scaling (mechanical)
2011-01-25 TC @ 160 187 160 1.17 Front-end Loader Operator
2009-12-02 TC @ 160 163 160 1.02 Drill Operator, Jumbo Perc.
2009-03-31 TC @ 160 183 160 1.14 Drill Operator, Rotary Air
2009-02-04 TC @ 160 266 160 1.66 Front-end Loader Operator
2009-02-04 EC @ 160 198 160 1.24 Front-end Loader Operator
2009-02-04 TC @ 160 239 160 1.49 Drill Operator, Jumbo Perc.
2009-02-04 EC @ 160 175 160 1.09 Drill Operator, Jumbo Perc.
2009-02-04 TC from EC @ 160 266 160 1.66 Drill Operator, Jumbo Perc.
2009-02-04 TC @ 160 502 160 3.14 Utility Man
2009-02-04 EC @ 160 346 160 2.16 Utility Man
2008-06-11 TC @ 160 187 160 1.17 Drill Operator, Rotary
2007-12-19 TCarbon @ 350 602.01 350 1.72 Scaling (mechanical)
2007-12-19 TC as EC @ 350 673.74 350 1.92 Scaling (mechanical)
2007-12-19 TCarbon @ 350 489.69 350 1.40 Front-end Loader Operator
2007-12-19 TC as EC @ 350 491.86 350 1.41 Front-end Loader Operator
2007-01-31 Quartz, respirable, >1% Qtz 3.12 1.94 1.61 Laborer, Bullgang
2007-01-31 Quartz, respirable, >1% Qtz 2.19 1.67 1.31 Laborer, Bullgang
2006-11-14 Quartz, respirable, >1% Qtz 8.43 1.32 6.39 Cont. Miner Helper
2006-11-14 Quartz, respirable, >1% Qtz 1.57 1.2 1.31 Roof Bolter, Rock
2006-11-14 Quartz, respirable, >1% Qtz 1.43 1.21 1.18 Roof Bolter, Rock
2006-11-14 Quartz, respirable, >1% Qtz 7.03 1.28 5.49 Cont. Miner Operator
2006-06-22 Quartz, respirable, >1% Qtz 1.89 1.2 1.58 Front-end Loader Operator
2006-06-22 Quartz, respirable, >1% Qtz 2.58 1.19 2.17 Cont. Miner Helper
2006-06-22 Quartz, respirable, >1% Qtz 2.86 1.32 2.17 Cont. Miner Operator
2006-04-11 Quartz, respirable, >1% Qtz 20.23 1.38 14.66 Cont. Miner Operator
2006-04-11 Quartz, respirable, >1% Qtz 6.33 1.28 4.95 Shotcrete/Gunite Man
2006-04-11 Quartz, respirable, >1% Qtz 23.31 1.32 17.66 Cont. Miner Helper
2006-04-11 Quartz, respirable, >1% Qtz 3.36 1.48 2.27 Cont. Miner Helper
2006-04-11 Quartz, respirable, >1% Qtz 2.54 1.18 2.15 Front-end Loader Operator
2006-04-11 Quartz, respirable, >1% Qtz 23.31 1.31 17.79 Cont. Miner Helper
2006-04-11 Quartz, respirable, >1% Qtz 6.32 1.28 4.94 Shotcrete/Gunite Man
2006-04-11 Quartz, respirable, >1% Qtz 2.55 1.18 2.16 Front-end Loader Operator
2006-04-11 Quartz, respirable, >1% Qtz 20.23 1.38 14.66 Cont. Miner Operator
2006-04-11 Quartz, respirable, >1% Qtz 3.36 1.48 2.27 Cont. Miner Helper
2006-02-15 Quartz, respirable, >1% Qtz 8.03 1.45 5.54 Cont. Miner Helper
2006-02-15 Quartz, respirable, >1% Qtz 8.49 1.75 4.85 Shotcrete/Gunite Man
2006-02-15 Quartz, respirable, >1% Qtz 8.1 1.54 5.26 Cont. Miner Operator
2006-02-15 Quartz, respirable, >1% Qtz 4.44 1.63 2.72 Cont. Miner Helper
2006-02-15 Quartz, respirable, >1% Qtz 2.03 1.35 1.50 Front-end Loader Operator
2005-05-10 Quartz, respirable, >1% Qtz 9.5 1.34 7.09 Cont. Miner Operator
2005-05-10 Quartz, respirable, >1% Qtz 11.1 1.46 7.60 Utility Man
2026-07-22 EC @ 160 0 160 0.00 Scaling (mechanical)
2026-07-22 TC from EC @ 160 0 160 0.00 Scaling (mechanical)
2026-07-22 TC @ 160 0 160 0.00 Scaling (mechanical)
2026-07-22 ORGANIC CARBON 0 Scaling (mechanical)
Showing 100 of 502 laboratory readings: every over-limit reading, then the most recent. MSHA reads one air sample several times, so readings outnumber the samples counted above. The full set is in MSHA's Personal Health Samples file.

Area samples (mill and shop air)

Last sampled: 2026-07-22
21
samples
Show the individual readings (43)
Date Contaminant Concentration Limit Conc / limit Area sampled
2026-07-22 TC @ 160 0 UG TRAVEL/HAULAGE
2026-07-22 EC @ 160 0 UG TRAVEL/HAULAGE
2025-05-07 TC @ 160 0 UG ACTIVE MINING
2025-05-07 EC @ 160 0 UG ACTIVE MINING
2024-10-29 EC @ 160 0 UG TRAVEL/HAULAGE
2024-10-29 TC @ 160 0 UG TRAVEL/HAULAGE
2024-05-15 TC @ 160 44 UG TRAVEL/HAULAGE
2024-05-15 EC @ 160 0 UG TRAVEL/HAULAGE
2024-05-01 EC @ 160 120 UG TRAVEL/HAULAGE
2024-05-01 TC @ 160 194 UG TRAVEL/HAULAGE
2024-04-17 TC @ 160 0 UG TRAVEL/HAULAGE
2024-04-17 EC @ 160 0 UG TRAVEL/HAULAGE
2023-10-12 TC @ 160 0 UG ACTIVE MINING
2023-10-12 EC @ 160 0 UG ACTIVE MINING
2023-08-17 EC @ 160 0 UG ORE TRANSFER
2023-08-17 TC @ 160 0 UG ORE TRANSFER
2023-03-15 TC @ 160 0 UG TRAVEL/HAULAGE
2023-03-15 EC @ 160 0 UG TRAVEL/HAULAGE
2022-01-26 EC @ 160 0 UG SHAFT/STATION
2022-01-26 TC from EC @ 160 0 UG SHAFT/STATION
2018-11-07 EC @ 160 162 UG GENERAL
2018-11-07 TC from EC @ 160 0 UG GENERAL
2018-11-07 TC @ 160 222 UG GENERAL
2018-09-18 TC @ 160 215 UG TRAVEL/HAULAGE
2018-09-18 EC @ 160 162 UG TRAVEL/HAULAGE
2018-09-18 TC from EC @ 160 0 UG TRAVEL/HAULAGE
2016-12-07 TC from EC @ 160 0 UG ORE TRANSFER ARE
2016-12-07 TC @ 160 164 UG ORE TRANSFER ARE
2016-12-07 EC @ 160 123 UG ORE TRANSFER ARE
2016-01-06 EC @ 160 477 UG TRAVEL/HAULAGE A
2016-01-06 TC @ 160 681 UG TRAVEL/HAULAGE A
2016-01-06 TC from EC @ 160 0 UG TRAVEL/HAULAGE A
2012-12-11 EC @ 160 173 UG ACTIVE MINING AR
2012-12-11 TC @ 160 233 UG ACTIVE MINING AR
2012-12-11 TC from EC @ 160 0 UG ACTIVE MINING AR
2009-02-04 EC @ 160 91 UG Active Mining
2009-02-04 TC @ 160 137 UG Active Mining
2009-02-04 TC from EC @ 160 0 UG Active Mining
2006-07-06 Quartz, respirable, >1% Qtz 0.57 UG ORE TRANSFER
2006-07-06 Nuisance dust, respirable, <1% Qtz 0.18 UG TRAVEL/HAULAGE
2006-07-06 Nuisance dust, respirable, <1% Qtz 0.18 UG TRAVEL/HAULAGE
2006-07-06 Nuisance dust, respirable, <1% Qtz 0.17 UG TRAVEL/HAULAGE
2006-07-06 Quartz, respirable, >1% Qtz 0.57 UG TRAVEL/HAULAGE
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.

Randolph Deep Mine recorded 0.94 reportable injury cases per 100 full-time workers in 2025.

Injury rate, 2025
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
0.94
total case rate
0.94
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Missouri, metal and nonmetal mining averaged 2.13 cases per 100 workers that year.
Year total case rate days-away fatal
2025 0.94 0.94 0.000
2024 1.70 0.00 0.000
2023 5.90 2.95 1.476
2022 1.74 1.74 0.000
2021 0.00 0.00 0.000
2020 0.00 0.00 0.000
2019 0.00 0.00 0.000
2018 1.66 0.00 0.000
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Martin Marietta Kansas City, LLC 2005 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 111
2025 102
2024 93
2023 49
2022 43
2021 48
2020 48
2019 50
2018 47
2017 52
2016 32
2015 35
2014 28
2013 26
2012 36
2011 39
2010 35
2009 30
2008 30
2007 31
2006 27
2005 35
Source: MSHA quarterly employment and production, updated weekly.

Randolph Deep Mine sits in Clay County, Missouri, where the Census mining category is 0.2% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Clay County, Missouri · Population 255,566
0.2%
Mining share of county employment
$86,150
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
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
2026 Q2 69,585 7 0 100.6
2026 Q1 61,314 7 1 114.2
2025 Q4 55,289 10 2 180.9
2025 Q3 46,492 0 0 0.0
2025 Q2 60,388 4 0 66.2
2025 Q1 50,769 1 0 19.7
2024 Q4 64,176 4 1 62.3
2024 Q3 67,288 0 0 0.0
Show 78 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 66,672 8 3 120.0
2024 Q1 37,816 3 0 79.3
2023 Q4 35,688 3 0 84.1
2023 Q3 36,208 8 3 220.9
2023 Q2 31,379 0 0 0.0
2023 Q1 32,211 6 0 186.3
2022 Q4 29,337 6 0 204.5
2022 Q3 30,081 10 3 332.4
2022 Q2 29,177 4 1 137.1
2022 Q1 26,663 3 0 112.5
2021 Q4 33,888 3 1 88.5
2021 Q3 30,774 4 2 130.0
2021 Q2 31,552 2 0 63.4
2021 Q1 22,988 3 0 130.5
2020 Q4 32,848 3 1 91.3
2020 Q3 32,531 5 1 153.7
2020 Q2 31,551 3 0 95.1
2020 Q1 26,492 2 1 75.5
2019 Q4 34,364 4 0 116.4
2019 Q3 34,869 4 0 114.7
2019 Q2 35,535 6 0 168.8
2019 Q1 24,774 3 0 121.1
2018 Q4 32,726 3 0 91.7
2018 Q3 32,935 0 0 0.0
2018 Q2 31,637 2 0 63.2
2018 Q1 23,059 4 1 173.5
2017 Q4 27,096 2 0 73.8
2017 Q3 41,063 3 2 73.1
2017 Q2 32,907 5 2 151.9
2017 Q1 26,861 7 0 260.6
2016 Q4 26,388 14 4 530.5
2016 Q3 19,903 3 1 150.7
2016 Q2 21,272 1 0 47.0
2016 Q1 20,594 6 4 291.3
2015 Q4 25,320 4 1 158.0
2015 Q3 23,414 1 1 42.7
2015 Q2 23,403 5 1 213.6
2015 Q1 24,951 8 3 320.6
2014 Q4 18,791 3 0 159.7
2014 Q3 11,146 6 2 538.3
2014 Q2 19,573 11 3 562.0
2014 Q1 17,900 7 1 391.1
2013 Q4 21,817 8 3 366.7
2013 Q3 14,586 3 1 205.7
2013 Q2 15,988 2 0 125.1
2013 Q1 12,162 4 1 328.9
2012 Q4 17,855 5 2 280.0
2012 Q3 23,335 2 0 85.7
2012 Q2 23,926 1 0 41.8
2012 Q1 22,105 3 1 135.7
2011 Q4 22,039 0 0 0.0
2011 Q3 25,651 1 0 39.0
2011 Q2 27,124 4 1 147.5
2011 Q1 24,742 2 1 80.8
2010 Q4 24,039 2 0 83.2
2010 Q3 21,865 6 2 274.4
2010 Q2 18,965 17 5 896.4
2010 Q1 15,546 2 1 128.7
2009 Q4 18,535 12 6 647.4
2009 Q3 20,401 7 3 343.1
2009 Q2 17,505 4 1 228.5
2009 Q1 17,185 7 6 407.3
2008 Q4 21,516 9 1 418.3
2008 Q3 20,205 4 0 198.0
2008 Q2 19,331 5 2 258.7
2008 Q1 16,709 2 2 119.7
2007 Q4 18,015 2 1 111.0
2007 Q3 18,041 2 0 110.9
2007 Q2 19,677 0 0 0.0
2007 Q1 18,783 3 0 159.7
2006 Q4 21,434 5 1 233.3
2006 Q3 10,484 2 1 190.8
2006 Q2 10,211 8 2 783.5
2006 Q1 19,128 9 6 470.5
2005 Q4 20,111 2 0 99.4
2005 Q3 22,503 4 2 177.8
2005 Q2 21,793 6 2 275.3
2005 Q1 7,673 0 0 0.0

Fatalities at this mine

1 recorded
January 30, 2023 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech Fatality · SLIP OR FALL OF PERSON
Martin Marietta Kansas City, LLC · Fall from scaffolds, walkways, platforms

An employee was fatally injured when they fell from an opening in an elevated catwalk.

Reportable incidents

33 on file (excluding fatalities above)

2025 · 1 incident

October 3, 2025 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Martin Marietta Kansas City, LLC · Fall from scaffolds, walkways, platforms

Employee was injured when EE fell through an elevated platform in a restricted area of the underground mine after EE climbed over a berm to access the restricted, inactive area in violation of the mine's rules and EE's training. The employee was not authorized to enter the restricted, inactive area and was not performing any work activity at the time the accident occurred.

2024 · 4 incidents

October 7, 2024 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Martin Marietta Kansas City, LLC · Over-exertion in pulling or pushing objects

Technician was pulling on a bolt with a wrench and felt strain in elbow.

February 27, 2024 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Kansas City, LLC · Struck against stationary object

Employee fractured rib while doing a belt splice.

February 5, 2024 MO · Metal/Non-Metal electrician helper MACHINERY
Martin Marietta Kansas City, LLC · Struck by... (Not Elsewhere Classified)

Employee was drilling hole in a piece of metal (angle iron) to mount Unistrut. Drill bit broke and went under safety glasses injuring eye.

2023 · 3 incidents

August 24, 2023 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Martin Marietta Kansas City, LLC · Struck by... (Not Elsewhere Classified)

An employee was cutting flashing, the tool slipped causing a laceration that required stitches to EE's right hand.

June 5, 2023 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Kansas City, LLC · Struck by... (Not Elsewhere Classified)

Employee was removing a shipping brace from a screen deck and was struck in the hand, fracturing their fingertip.

2022 · 2 incidents

June 20, 2022 MO · Metal/Non-Metal FIRE
Martin Marietta Kansas City, LLC · Accident type, without injuries

A fire started on the slope belt when one of the drive pulleys tripped out and the second pulley continued to pull on the belt.

March 4, 2022 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Kansas City, LLC · Over-exertion (Not Elsewhere Classified)

On 3/5/22 employee experienced shoulder pain but only reported it two days later. The doctor found it was not from work. At employee's request, a second doctor opined that work was the prevailing factor. Employer requested an IME and on 11/4/22 we received notice that the third doctor would likely opine work was the prevailing factor. Thus we are now submitting the 7000-1.

2018 · 2 incidents

March 13, 2018 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Martin Marietta Kansas City, LLC · Fall to the walkway or working surface

While spraying Shotcrete, employee lost control of the concrete hose and fell down striking left shoulder, resulting in an AC Separation.

January 30, 2018 MO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Martin Marietta Kansas City, LLC · Struck by falling object

Employee was assisting with the replacement of an outrigger on the mechanical scaler, when the hydraulic cylinder that was being supported by a block of wood fell from the block striking the employees finger. The employee was seen at a medical center and released that night.

2017 · 4 incidents

September 19, 2017 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Martin Marietta Kansas City, LLC · Struck by... (Not Elsewhere Classified)

Employee was modifying the flashing for a new belt. During the process, the employee needed to remove a piece of flashing. The employee began cutting the piece with a box cutter, the cutter slipped and the employee cut their left arm. The employee immediately returned to work after care the same day.

August 23, 2017 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Martin Marietta Kansas City, LLC · Struck by... (Not Elsewhere Classified)

Injured worker was using 1' impact to remove cutting edge hardware (bolts). Worker reached around to push bolt back into place and accidentally engaged the impact causing laceration to palm of right hand.

April 10, 2017 MO · Metal/Non-Metal laborer, bull gang, parts runner, roustabout, roof trimmer/scaler HANDLING OF MATERIALS
Martin Marietta Kansas City, LLC · Struck by... (Not Elsewhere Classified)

Employee was adjusting deflector gate on 1 South screen on Monday 4/10/2017. On 4/12/2017, EE noticed that EE's abrasion was more painful and started to swell. At 2:00 pm I went our clinic with employee to be seen by our doctors. Doctor advised employee to continuation of EE's anti-biotic and Dr wants EE to be seen on 4/14/2017 to check EE's infection.

March 22, 2017 MO · Metal/Non-Metal section foreman, bullgang foreman, labor foreman, leadman, shift boss HANDLING OF MATERIALS
Martin Marietta Kansas City, LLC · Struck by flying object

Employee was adding a drill steel to the drill so they could get the desired depth for a bore scope hole. A piece of shrapnel hit employee in the arm so employee was taken to the ER. Employee was treated and release back to full duty.

2016 · 2 incidents

September 15, 2016 MO · Metal/Non-Metal laborer, bull gang, parts runner, roustabout, roof trimmer/scaler HANDLING OF MATERIALS
Martin Marietta Kansas City, LLC · Struck by... (Not Elsewhere Classified)

Detached a plugged 3' long 3" to 2" reducer from our concrete pump. Stood vertical to unplug, when tapping reducer on the ground to remove concrete, the concrete shot up the pipe striking the employee in the face, forcing the employee's goggles up and covering the employee's right eye with concrete.

April 22, 2016 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Martin Marietta Kansas City, LLC · Over-exertion (Not Elsewhere Classified)

While stepping out of transmixer truck, stepped down with right leg on loose rock in roadway causing employee to slip down ramp and when boot caught traction and stopped abruptly this caused a jamming motion to right knee.

2015 · 6 incidents

November 4, 2015 MO · Metal/Non-Metal miner, nec HANDLING OF MATERIALS
Martin Marietta Kansas City, LLC · Struck by falling object

Employee had removed grate to cement hopper and placed on top of B 50 pump. While attempting to replace grate employee reached out and began pulling the grate back into place. Employee's footing began to slip and while attempting to catch himself with his left hand the grate came down and struck his left fingers resulting in fractures to four of his fingers.

August 18, 2015 MO · Metal/Non-Metal laborer, bull gang, parts runner, roustabout, roof trimmer/scaler HANDTOOLS (NONPOWERED)
Martin Marietta Kansas City, LLC · Struck by flying object

Employee was working on the belt scraper in slope four, the belt scraper is located on the head roller. The shaft had walked out of the belt scraper, so the employee hit the shaft with a hammer to move it back into place. When he did, employee felt something get into his left eye. Employee was seen at clinic and was released to full duty on 08/19/2015.

June 17, 2015 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech STRIKING OR BUMPING
Martin Marietta Kansas City, LLC · Struck against stationary object

While jumping over beam, employees hit his head on another beam overhead.

April 14, 2015 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Kansas City, LLC · Over-exertion in lifting objects

Employee diagnosed at later date with abdomen hernia due to lifting, pulling over an extended period of time - chronic. No specific activity on injury date can be blamed for injury. Scheduling problems with doctor and clinics delayed return to work process.

February 17, 2015 MO · Metal/Non-Metal laborer, bull gang, parts runner, roustabout, roof trimmer/scaler SLIP OR FALL OF PERSON
Martin Marietta Kansas City, LLC · Over-exertion (Not Elsewhere Classified)

Miner was exiting his equipment and as he grabbed an hold of the hand rail and as he exited and stepped down, he pulled his left arm straight and pulled muscle in left arm.

February 4, 2015 MO · Metal/Non-Metal laborer, bull gang, parts runner, roustabout, roof trimmer/scaler HANDLING OF MATERIALS
Martin Marietta Kansas City, LLC · Struck by rolling or sliding object

Employee was positioned in a man basket to install lagging onto the newly erected steel set. An employee on the ground removed the spreader pipe and tie rods from the left leg causing the set to shift downhill approx. 2 1/2' The moving set struck the employee (in the man basket) causing contusions to head and face area.

2013 · 2 incidents

August 14, 2013 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Martin Marietta Kansas City, LLC · Struck by... (Not Elsewhere Classified)

While splicing a belt miner sustained a laceration requiring stitches.

2012 · 2 incidents

2010 · 4 incidents

August 23, 2010 MO · Metal/Non-Metal FALL OF ROOF OR BACK
Martin Marietta Kansas City, LLC · Accident type, without injuries

A brow fell and it was identified by employees during the shift. The fall damaged one side of a conveyor and discharge line for the pumps. No-one was injured and no-one was around when fall occurred.

April 23, 2010 MO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer OTHER
Martin Marietta Kansas City, LLC · Rubbed or abraded

While wearing the proper PPE required for the job, the employee developed a rash on his leg due to the friction of his boots on his skin (leg).

April 16, 2010 MO · Metal/Non-Metal front-end loader operator SLIP OR FALL OF PERSON
Martin Marietta Kansas City, LLC · Over-exertion (Not Elsewhere Classified)

Original incident was reported to company on 4/16/2010 but not MSHA reportable/lost-time until 9/14/2010, thus the submission of the report. Incident occurred when climbing down from ladder when his foot/hand slipped off of handrail. Employee caught himself on safety chain on separate piece of equipment parked next to loader.

2009 · 1 incident

September 29, 2009 MO · Metal/Non-Metal laborer, bull gang, parts runner, roustabout, roof trimmer/scaler POWERED HAULAGE
Martin Marietta Kansas City, LLC · Struck against stationary object

On the 29th of Sept employee was in a manlift with co-worker loading faces. Co-worker was running the controls as they were going up the face. As they neared the top the operator didn't take into consideration that injured is a little taller & on the high side. He raised the lift too high hitting injured's head and injuring his neck as a result.