Martin Marietta Materials, Inc. · Accident type, without injuries
Weather conditions caused a rise in the Big Nemaha River water level. This resulted in flood water that inundated Dubois Quarry.
DuBois Quarry Metal/Non-Metal
Martin Marietta Materials, Inc.
· Surface
Controlled by
Martin Marietta Materials Inc
DuBoise,
Pawnee County,
NE
·
Active
MSHA Mine ID: 2501046
DuBois Quarry has $20K in proposed MSHA penalties and $0 outstanding across 3 contested dockets, plus health sampling and the full incident record.
Watch this mine
Email me when a new MSHA incident is filed at DuBois Quarry.
- Fatalities
- 0
- Total incidents
- 11
- Years on record
- 1990–2026
- Latest incident
- Jun 2026
Compliance record
MSHA citations since 2001
94
citations
16
significant & substantial
$19,988
proposed penalties
$19,484
paid to date
97% of proposed penalties paid to date, a $504 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
58
inspections on record
849
inspection hours
n/a
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.Rate withheld: 849 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
DuBois Quarry has $20K in proposed MSHA penalties and $0 outstanding across 3 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
91 assessments are final orders; 3 contested dockets.
As of the most recent assessment on 2026-01-07.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also
the operator's enforcement record
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 | 4,859 | 0 | 0 | 0.0 |
| 2025 Q3 | 4,982 | 0 | 0 | 0.0 |
| 2025 Q2 | 5,560 | 0 | 0 | 0.0 |
| 2025 Q1 | 4,153 | 2 | 0 | 481.6 |
| 2024 Q4 | 4,968 | 0 | 0 | 0.0 |
| 2024 Q3 | 5,608 | 0 | 0 | 0.0 |
| 2024 Q2 | 5,248 | 1 | 0 | 190.5 |
| 2024 Q1 | 3,672 | 0 | 0 | 0.0 |
Show 96 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 4,557 | 0 | 0 | 0.0 |
| 2023 Q3 | 6,393 | 1 | 0 | 156.4 |
| 2023 Q2 | 6,777 | 0 | 0 | 0.0 |
| 2023 Q1 | 4,907 | 0 | 0 | 0.0 |
| 2022 Q4 | 5,407 | 0 | 0 | 0.0 |
| 2022 Q3 | 6,962 | 0 | 0 | 0.0 |
| 2022 Q2 | 6,063 | 2 | 1 | 329.9 |
| 2022 Q1 | 4,513 | 9 | 0 | 1994.2 |
| 2021 Q4 | 5,773 | 0 | 0 | 0.0 |
| 2021 Q3 | 6,813 | 4 | 3 | 587.1 |
| 2021 Q2 | 6,317 | 0 | 0 | 0.0 |
| 2021 Q1 | 3,516 | 0 | 0 | 0.0 |
| 2020 Q4 | 6,700 | 0 | 0 | 0.0 |
| 2020 Q3 | 6,502 | 0 | 0 | 0.0 |
| 2020 Q2 | 6,309 | 8 | 1 | 1268.0 |
| 2020 Q1 | 3,031 | 0 | 0 | 0.0 |
| 2019 Q4 | 1,164 | 0 | 0 | 0.0 |
| 2019 Q3 | 907 | 0 | 0 | 0.0 |
| 2019 Q2 | 4,880 | 0 | 0 | 0.0 |
| 2019 Q1 | 7,477 | 2 | 0 | 267.5 |
| 2018 Q4 | 7,594 | 0 | 0 | 0.0 |
| 2018 Q3 | 7,811 | 2 | 1 | 256.0 |
| 2018 Q2 | 7,940 | 0 | 0 | 0.0 |
| 2018 Q1 | 6,920 | 1 | 0 | 144.5 |
| 2017 Q4 | 8,134 | 0 | 0 | 0.0 |
| 2017 Q3 | 9,474 | 0 | 0 | 0.0 |
| 2017 Q2 | 8,726 | 0 | 0 | 0.0 |
| 2017 Q1 | 7,484 | 1 | 1 | 133.6 |
| 2016 Q4 | 8,620 | 3 | 0 | 348.0 |
| 2016 Q3 | 10,091 | 0 | 0 | 0.0 |
| 2016 Q2 | 10,054 | 2 | 0 | 198.9 |
| 2016 Q1 | 8,793 | 0 | 0 | 0.0 |
| 2015 Q4 | 9,196 | 2 | 1 | 217.5 |
| 2015 Q3 | 9,073 | 3 | 0 | 330.7 |
| 2015 Q2 | 8,294 | 0 | 0 | 0.0 |
| 2015 Q1 | 7,686 | 0 | 0 | 0.0 |
| 2014 Q4 | 8,550 | 1 | 0 | 117.0 |
| 2014 Q3 | 9,140 | 12 | 5 | 1312.9 |
| 2014 Q2 | 8,994 | 0 | 0 | 0.0 |
| 2014 Q1 | 6,727 | 1 | 0 | 148.7 |
| 2013 Q4 | 7,774 | 0 | 0 | 0.0 |
| 2013 Q3 | 8,366 | 0 | 0 | 0.0 |
| 2013 Q2 | 7,879 | 0 | 0 | 0.0 |
| 2013 Q1 | 7,347 | 1 | 0 | 136.1 |
| 2012 Q4 | 7,802 | 0 | 0 | 0.0 |
| 2012 Q3 | 7,432 | 0 | 0 | 0.0 |
| 2012 Q2 | 7,827 | 3 | 0 | 383.3 |
| 2012 Q1 | 7,275 | 0 | 0 | 0.0 |
| 2011 Q4 | 6,998 | 1 | 0 | 142.9 |
| 2011 Q3 | 8,807 | 4 | 1 | 454.2 |
| 2011 Q2 | 7,878 | 2 | 1 | 253.9 |
| 2011 Q1 | 6,237 | 0 | 0 | 0.0 |
| 2010 Q4 | 7,639 | 2 | 0 | 261.8 |
| 2010 Q3 | 7,482 | 0 | 0 | 0.0 |
| 2010 Q2 | 7,343 | 3 | 0 | 408.6 |
| 2010 Q1 | 5,757 | 0 | 0 | 0.0 |
| 2009 Q4 | 7,328 | 2 | 0 | 272.9 |
| 2009 Q3 | 7,313 | 0 | 0 | 0.0 |
| 2009 Q2 | 6,732 | 0 | 0 | 0.0 |
| 2009 Q1 | 6,103 | 4 | 0 | 655.4 |
| 2008 Q4 | 6,767 | 0 | 0 | 0.0 |
| 2008 Q3 | 7,330 | 0 | 0 | 0.0 |
| 2008 Q2 | 7,266 | 1 | 0 | 137.6 |
| 2008 Q1 | 5,436 | 0 | 0 | 0.0 |
| 2007 Q4 | 5,828 | 0 | 0 | 0.0 |
| 2007 Q3 | 7,062 | 1 | 0 | 141.6 |
| 2007 Q2 | 6,382 | 0 | 0 | 0.0 |
| 2007 Q1 | 3,202 | 0 | 0 | 0.0 |
| 2006 Q4 | 5,483 | 0 | 0 | 0.0 |
| 2006 Q3 | 6,021 | 1 | 0 | 166.1 |
| 2006 Q2 | 6,740 | 0 | 0 | 0.0 |
| 2006 Q1 | 6,228 | 0 | 0 | 0.0 |
| 2005 Q4 | 6,403 | 0 | 0 | 0.0 |
| 2005 Q3 | 7,007 | 0 | 0 | 0.0 |
| 2005 Q2 | 6,383 | 0 | 0 | 0.0 |
| 2005 Q1 | 5,191 | 3 | 0 | 577.9 |
| 2004 Q4 | 6,421 | 0 | 0 | 0.0 |
| 2004 Q3 | 5,892 | 0 | 0 | 0.0 |
| 2004 Q2 | 6,236 | 0 | 0 | 0.0 |
| 2004 Q1 | 5,157 | 0 | 0 | 0.0 |
| 2003 Q4 | 4,797 | 0 | 0 | 0.0 |
| 2003 Q3 | 4,466 | 1 | 0 | 223.9 |
| 2003 Q2 | 4,027 | 0 | 0 | 0.0 |
| 2003 Q1 | 2,333 | 0 | 0 | 0.0 |
| 2002 Q4 | 3,976 | 0 | 0 | 0.0 |
| 2002 Q3 | 4,830 | 1 | 0 | 207.0 |
| 2002 Q2 | 5,770 | 0 | 0 | 0.0 |
| 2002 Q1 | 5,279 | 0 | 0 | 0.0 |
| 2001 Q4 | 6,208 | 0 | 0 | 0.0 |
| 2001 Q3 | 5,621 | 0 | 0 | 0.0 |
| 2001 Q2 | 5,918 | 3 | 1 | 506.9 |
| 2001 Q1 | 3,776 | 0 | 0 | 0.0 |
| 2000 Q4 | 5,717 | 0 | 0 | 0.0 |
| 2000 Q3 | 6,013 | 0 | 0 | 0.0 |
| 2000 Q2 | 6,414 | 0 | 0 | 0.0 |
| 2000 Q1 | 6,511 | 0 | 0 | 0.0 |
No fatalities recorded at this mine.
Reportable incidents
11 on file2026 · 1 incident
2017 · 2 incidents
November 28, 2017
NE · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
HANDLING OF MATERIALS
Martin Marietta Materials, Inc. · Over-exertion in lifting objects
Strain to lower arm requiring splint for 2 weeks. EE was lifting bags of anfo picking bags up off of the ledge. Grabbing bags with EE's left hand to load the holes. Noticed it about 6pm at home after work. Couldn't get comfortable when EE tried to go to sleep. This morning EE couldn't pick up an orange. Has a hard time opening EE's hand
Martin Marietta Materials, Inc. · Fall onto or against objects
Employee was ascending a set of stairs leading up and into a trailer. EE tripped at the top step and fell onto the hand rail. The end of the hand rail had an exposed burr that cut into the employees arm requiring 5 stitches.
2016 · 2 incidents
October 3, 2016
NE · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
DISORDERS (REPEATED TRAUMA)
Martin Marietta Materials, Inc. · Over-exertion (Not Elsewhere Classified)
Employee first reported on Oct. 25 2016 that EE has been having pain in EE's elbows (joint and muscle) for a while (more constant since around Oct. 3) from EE's Haul Truck position. The injury was evaluated and on December 1st, was determined to be workers comp.
July 13, 2016
NE · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
HANDLING OF MATERIALS
Martin Marietta Materials, Inc. · Caught in, under or between (Not Elsewhere Classified)
Employee was working with the crew changing out v-belts and hand slipped resulting in one broken finger and one fractured finger on right hand.
2015 · 1 incident
November 12, 2015
NE · Metal/Non-Metal
driller, highwall operator, highwall drill operator
HANDLING OF MATERIALS
Martin Marietta Materials, Inc. · Over-exertion in lifting objects
Lifting 75 bags of shot at 50lbs per bag employee strain his right elbow
2014 · 1 incident
Martin Marietta Materials, Inc. · Struck against a moving object
EE reported that while running the dozer he backed over a frozen dirt clod which caused him to jar his back. Health Bridge was contacted. EE was informed by Health Bridge that home care was all that was needed. Ice and Ibuprofen was recommended. January 5th EE saw a doctor and was given a restriction of not operating the Dozer for 2 weeks.
1993 · 1 incident
April 19, 1993
NE · Metal/Non-Metal
front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator
SLIP OR FALL OF PERSON
Martin Marietta Aggregates · Fall from machine
EE WAS TIGHTENING HOOD ON HIS LOADER WHEN HIS FEET SLIPPED OUT FROM UNDERHIM HE FELL APPROX 3 FT TO THE GROUND LANDING ON HIS LEFT SHOULDER.
1992 · 2 incidents
November 10, 1992
NE · Metal/Non-Metal
driller, highwall operator, highwall drill operator
HANDLING OF MATERIALS
Martin Marietta Aggregates · Over-exertion in lifting objects
EE WAS MOVING 50 LB BAGS FROM ONE TRAILER TO ANOTHER WHEN HE STRAINED THE MUSCLES IN HIS BACK.
October 15, 1992
NE · Metal/Non-Metal
haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver
HANDLING OF MATERIALS
Martin Marietta Aggregates · Over-exertion (Not Elsewhere Classified)
EMPLOYEE WAS OPERATING TRUCK FOR LONG PERIODS OF TIME, FAILING TO GET OUT AND STRETCH. THIS CAUSED HIS HAMSTRINGS TO TIGHTEN UP AND PULL HIS BACK.
1990 · 1 incident
February 2, 1990
NE · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
HANDTOOLS (NONPOWERED)
Martin Marietta Aggregates · Over-exertion (Not Elsewhere Classified)
HE SQUATTED DOWN WHILE LOADING SHOT WHEN HE GOT BACK UP HE HEARD HIS KNEE POP.
For insurers, brokers, and safety consultants
The full compliance file on DuBois 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.