Mining Incidents

Crusher #1: 82 MSHA citations Metal/Non-Metal

Controlled by Knife River Corporation
Bismarck, Burleigh County, ND  ·  Intermittent
MSHA Mine ID: 3200950

Crusher #1 has $26K in proposed MSHA penalties and $10K outstanding across 2 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
8
Years on record
2012–2026
Latest incident
Jun 2026
Compliance record
MSHA citations since 2012
82
citations
21
significant & substantial
$25,991
proposed penalties
$14,913
paid to date
57% of proposed penalties paid to date, a $11,078 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2012
25
inspections on record
367
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: 367 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Crusher #1 has $26K in proposed MSHA penalties and $10K outstanding across 2 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.
$26K
proposed penalties
$25K
current assessed
$15K
paid to date
$10K
outstanding
82 assessments are final orders; 2 contested dockets.
Of $4K in penalties contested before the Commission, $2K was upheld in final decisions.
As of the most recent assessment on 2026-06-03.
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.
25.6%
significant & substantial
9.8%
high negligence or reckless
25.6%
reasonably likely or greater
61.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 2.4% low, 87.8% moderate, 9.8% 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.
3 citations taken to the federal commission · 4% of citations on record
  • Settled 3 · 100%
100%
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 3 decided S&S contests · industry: 79%
38%
Penalty reduction in decided contests
$4K proposed, $2K 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 2016-01-13.
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 2016-0166 Settlement Barbour 2016 $2K → $705
CENT 2013-622M Settlement Lesnick 2014 $2K → $2K
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: 2026-06-03
0%
of limit-tested samples over the exposure limit
7
samples
2
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg5
  • Quartz, respirable, >1% Qtz2
Show the individual readings (7)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-06-03 Respirable dust, <.1mg 0 Front-end Loader Operator
2026-06-03 Respirable dust, <.1mg 0 Supervisor, Co. Official
2026-06-03 Respirable dust, <.1mg 0 Mechanic
2026-06-03 Respirable dust, <.1mg 0 Washer Operator
2012-08-22 Quartz, respirable, >1% Qtz 0.84 0.89 0.94 Crusher Oper/Worker
2012-08-22 Respirable dust, <.1mg 0 Front-end Loader Operator
2012-08-22 Quartz, respirable, >1% Qtz 0.27 0.9 0.30 Bulldozer Operator

Area samples (mill and shop air)

Last sampled: 2015-08-25, 11 years ago
1
samples
Show the individual readings (1)
Date Contaminant Concentration Limit Conc / limit Area sampled
2015-08-25 Respirable dust, <.1mg 0 SF ACTIVE MINING
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.
Ownership history
  1. Knife River Corporation - North Central 2012 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 3
2024 6
2023 4
2022 3
2021 4
2020 4
2019 3
2018 4
2017 5
2016 7
2015 6
2014 4
2013 4
2012 9
Source: MSHA quarterly employment and production, updated weekly.

Crusher #1 sits in Burleigh County, North Dakota, where the Census mining category is 1.3% 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.
Burleigh County, North Dakota · Population 98,986
1.3%
Mining share of county employment
$84,948
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 3,050 8 1 2623.0
2026 Q1 1,046 0 0 0.0
2025 Q4 2,660 0 0 0.0
2025 Q3 3,324 0 0 0.0
2025 Q2 2,028 16 3 7889.5
2025 Q1 0 0 0
2024 Q4 5,865 0 0 0.0
2024 Q3 5,728 0 0 0.0
Show 49 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 4,916 0 0 0.0
2024 Q1 1,778 0 0 0.0
2023 Q4 4,266 3 1 703.2
2023 Q3 866 0 0 0.0
2023 Q2 2,727 0 0 0.0
2023 Q1 838 0 0 0.0
2022 Q4 397 1 0 2518.9
2022 Q3 1,266 1 0 789.9
2022 Q2 3,884 0 0 0.0
2022 Q1 0 0 0
2021 Q4 688 0 0 0.0
2021 Q3 1,181 0 0 0.0
2021 Q2 1,307 4 0 3060.4
2021 Q1 142 0 0 0.0
2020 Q4 824 0 0 0.0
2020 Q3 603 6 1 9950.2
2020 Q2 1,104 0 0 0.0
2020 Q1 283 0 0 0.0
2019 Q4 302 0 0 0.0
2019 Q3 706 0 0 0.0
2019 Q2 1,006 6 1 5964.2
2019 Q1 0 0 0
2018 Q4 0 0 0
2018 Q3 276 0 0 0.0
2018 Q2 522 0 0 0.0
2018 Q1 891 0 0 0.0
2017 Q4 356 3 0 8427.0
2017 Q3 1,040 0 0 0.0
2017 Q2 924 0 0 0.0
2017 Q1 404 7 1 17326.7
2016 Q4 1,230 0 0 0.0
2016 Q3 788 0 0 0.0
2016 Q2 5,914 0 0 0.0
2016 Q1 1,839 0 0 0.0
2015 Q4 968 8 3 8264.5
2015 Q3 778 0 0 0.0
2015 Q2 2,144 0 0 0.0
2015 Q1 1 1 0 1000000.0
2014 Q4 5,973 0 0 0.0
2014 Q3 3,318 0 0 0.0
2014 Q2 5,040 2 0 396.8
2014 Q1 0 0 0
2013 Q4 1,404 0 0 0.0
2013 Q3 4,282 0 0 0.0
2013 Q2 5,669 3 2 529.2
2013 Q1 0 0 0
2012 Q4 6,399 0 0 0.0
2012 Q3 6,891 13 8 1886.5
2012 Q2 4,765 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

8 on file

2026 · 1 incident

June 5, 2026 ND · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker SLIP OR FALL OF PERSON

Miner was looking for an electrical issue on a ladder. EE missed a step on the way down and fell 3 rungs to the ground landing on EE's shoulder. EE was shoulder and dislocated it. EE was carrying a flashlight in right hand.

2023 · 1 incident

August 13, 2023 ND · Metal/Non-Metal miner, prospector, nec HANDLING OF MATERIALS
Knife River Corporation - North Central · Struck by flying object

Employee was hit by an anvil from a VSI crusher. The anvils were being removed and thrown out of the machine by another employee. The employee that was struck walked into the area where the anvils were being tossed to the ground. EE was struck in the lower back and buttocks. EE had scrapes and bruising.

2020 · 1 incident

August 4, 2020 ND · Metal/Non-Metal miner, prospector, nec POWERED HAULAGE
Knife River Corporation - North Central · Struck against a moving object

Loader operator was pulling material from a wall and part of the wall fell on the bucket lifting the back end of the loader to buck up and back down. Loader operator reported hitting their head on the headrest.

2018 · 1 incident

2013 · 3 incidents

August 30, 2013 ND · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Knife River Corporation - North Central · Struck by falling object

While servicing the cone crusher, operator's left finger tip was crushed when keeper ring fell while being removed. Medical treatment included xray, antibiotic and pain med, and dressing of wound. Distal finger bone is broken and nail was removed.

July 2, 2013 ND · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
Knife River Corporation - North Central · Struck by falling object

Employee reached under rock kicker while it was being adjusted, jack slipped, crushing his hand and wrist. Hairline fracture of a wrist bone, medical treatment provided splint and pain medication

2012 · 1 incident

December 8, 2012 ND · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Knife River Corporation - North Central · Struck by... (Not Elsewhere Classified)

dust and metal grindings blew into eye of miner while repairing conveyor belt. Miner was wearing safety glasses and face shield, but should have worn goggles due to windy conditions, and postioned himself upwind of the work area.