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.
Crusher #1: 82 MSHA citations Metal/Non-Metal
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
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This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.Crusher #1 has $26K in proposed MSHA penalties and $10K outstanding across 2 contested dockets.
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Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.ⓘ
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.ⓘ
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.- Settled 3 · 100%
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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 Vacated and withdrawn citations, and settlements that removed the designation, count against.ⓘ
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.| Docket | Decision | Judge | Year | Proposed / upheld |
|---|---|---|---|---|
| CENT 2016-0166 | Settlement | Barbour | 2016 | $2K → $705 |
| CENT 2013-622M | Settlement | Lesnick | 2014 | $2K → $2K |
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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)
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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
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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.- 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 agoShow the individual readings (1)
| Date | Contaminant | Concentration | Limit | Conc / limit | Area sampled |
|---|---|---|---|---|---|
| 2015-08-25 | Respirable dust, <.1mg | 0 | SF ACTIVE MINING |
- Knife River Corporation - North Central 2012 to present
| 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 |
Crusher #1 sits in Burleigh County, North Dakota, where the Census mining category is 1.3% of county employment.
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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.ⓘ
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.| 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 Hide 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 |
Reportable incidents
8 on file2026 · 1 incident
2023 · 1 incident
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
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
Miner was attempting to unplug a jaw crusher and was struck in the head by a 5 ft bar. EE received 10 staples to close a laceration on EE's head.
2013 · 3 incidents
Injured employee tripped in a low spot caused by build up on a catwalk and sprained his ankle.
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.
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
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.