Portable Crusher #1 Metal/Non-Metal
Knife River Corporation
· Surface
East Helena,
Lewis And Clark County,
MT
·
Intermittent
MSHA Mine ID: 2402312
Portable Crusher #1 has $8K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2004
73
citations
14
significant & substantial
$7,749
proposed penalties
$7,749
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2004
36
inspections on record
310
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: 310 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Portable Crusher #1 has $8K in proposed MSHA penalties and $0 outstanding across 0 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.$8K
proposed penalties
$8K
current assessed
$8K
paid to date
$0
outstanding
73 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2023-06-21.
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 | 1,873 | 0 | 0 | 0.0 |
| 2025 Q3 | 3,346 | 0 | 0 | 0.0 |
| 2025 Q2 | 2,620 | 0 | 0 | 0.0 |
| 2025 Q1 | 348 | 0 | 0 | 0.0 |
| 2024 Q4 | 1,578 | 0 | 0 | 0.0 |
| 2024 Q3 | 2,560 | 0 | 0 | 0.0 |
| 2024 Q2 | 1,569 | 0 | 0 | 0.0 |
| 2024 Q1 | 325 | 0 | 0 | 0.0 |
Show 84 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 1,716 | 0 | 0 | 0.0 |
| 2023 Q3 | 2,468 | 0 | 0 | 0.0 |
| 2023 Q2 | 1,838 | 4 | 0 | 2176.3 |
| 2023 Q1 | 80 | 0 | 0 | 0.0 |
| 2022 Q4 | 822 | 0 | 0 | 0.0 |
| 2022 Q3 | 1,675 | 0 | 0 | 0.0 |
| 2022 Q2 | 1,659 | 0 | 0 | 0.0 |
| 2022 Q1 | 50 | 0 | 0 | 0.0 |
| 2021 Q4 | 1,184 | 1 | 0 | 844.6 |
| 2021 Q3 | 1,660 | 0 | 0 | 0.0 |
| 2021 Q2 | 1,621 | 0 | 0 | 0.0 |
| 2021 Q1 | 1,058 | 0 | 0 | 0.0 |
| 2020 Q4 | 670 | 5 | 1 | 7462.7 |
| 2020 Q3 | 2,150 | 0 | 0 | 0.0 |
| 2020 Q2 | 1,276 | 0 | 0 | 0.0 |
| 2020 Q1 | 240 | 0 | 0 | 0.0 |
| 2019 Q4 | 102 | 0 | 0 | 0.0 |
| 2019 Q3 | 1,726 | 4 | 2 | 2317.5 |
| 2019 Q2 | 473 | 0 | 0 | 0.0 |
| 2019 Q1 | 256 | 0 | 0 | 0.0 |
| 2018 Q4 | 895 | 0 | 0 | 0.0 |
| 2018 Q3 | 1,362 | 0 | 0 | 0.0 |
| 2018 Q2 | 906 | 4 | 0 | 4415.0 |
| 2018 Q1 | 497 | 0 | 0 | 0.0 |
| 2017 Q4 | 822 | 0 | 0 | 0.0 |
| 2017 Q3 | 989 | 11 | 3 | 11122.3 |
| 2017 Q2 | 972 | 0 | 0 | 0.0 |
| 2017 Q1 | 106 | 0 | 0 | 0.0 |
| 2016 Q4 | 807 | 0 | 0 | 0.0 |
| 2016 Q3 | 1,161 | 0 | 0 | 0.0 |
| 2016 Q2 | 970 | 0 | 0 | 0.0 |
| 2016 Q1 | 171 | 0 | 0 | 0.0 |
| 2015 Q4 | 307 | 0 | 0 | 0.0 |
| 2015 Q3 | 599 | 0 | 0 | 0.0 |
| 2015 Q2 | 513 | 0 | 0 | 0.0 |
| 2015 Q1 | 320 | 0 | 0 | 0.0 |
| 2014 Q4 | 644 | 0 | 0 | 0.0 |
| 2014 Q3 | 958 | 0 | 0 | 0.0 |
| 2014 Q2 | 542 | 0 | 0 | 0.0 |
| 2014 Q1 | 240 | 0 | 0 | 0.0 |
| 2013 Q4 | 280 | 0 | 0 | 0.0 |
| 2013 Q3 | 900 | 1 | 1 | 1111.1 |
| 2013 Q2 | 353 | 0 | 0 | 0.0 |
| 2013 Q1 | 390 | 1 | 0 | 2564.1 |
| 2012 Q4 | 716 | 0 | 0 | 0.0 |
| 2012 Q3 | 778 | 4 | 0 | 5141.4 |
| 2012 Q2 | 812 | 0 | 0 | 0.0 |
| 2012 Q1 | 325 | 0 | 0 | 0.0 |
| 2011 Q4 | 364 | 0 | 0 | 0.0 |
| 2011 Q3 | 538 | 0 | 0 | 0.0 |
| 2011 Q2 | 490 | 0 | 0 | 0.0 |
| 2011 Q1 | 383 | 7 | 1 | 18276.8 |
| 2010 Q4 | 283 | 0 | 0 | 0.0 |
| 2010 Q3 | 715 | 0 | 0 | 0.0 |
| 2010 Q2 | 475 | 0 | 0 | 0.0 |
| 2010 Q1 | 351 | 0 | 0 | 0.0 |
| 2009 Q4 | 290 | 0 | 0 | 0.0 |
| 2009 Q3 | 370 | 8 | 2 | 21621.6 |
| 2009 Q2 | 375 | 0 | 0 | 0.0 |
| 2009 Q1 | 198 | 0 | 0 | 0.0 |
| 2008 Q4 | 215 | 0 | 0 | 0.0 |
| 2008 Q3 | 456 | 0 | 0 | 0.0 |
| 2008 Q2 | 793 | 0 | 0 | 0.0 |
| 2008 Q1 | 725 | 0 | 0 | 0.0 |
| 2007 Q4 | 1,145 | 2 | 0 | 1746.7 |
| 2007 Q3 | 1,173 | 0 | 0 | 0.0 |
| 2007 Q2 | 1,055 | 0 | 0 | 0.0 |
| 2007 Q1 | 678 | 0 | 0 | 0.0 |
| 2006 Q4 | 1,081 | 0 | 0 | 0.0 |
| 2006 Q3 | 1,701 | 0 | 0 | 0.0 |
| 2006 Q2 | 1,997 | 2 | 0 | 1001.5 |
| 2006 Q1 | 1,777 | 0 | 0 | 0.0 |
| 2005 Q4 | 2,542 | 0 | 0 | 0.0 |
| 2005 Q3 | 3,427 | 11 | 0 | 3209.8 |
| 2005 Q2 | 2,213 | 1 | 0 | 451.9 |
| 2005 Q1 | 929 | 0 | 0 | 0.0 |
| 2004 Q4 | 1,722 | 0 | 0 | 0.0 |
| 2004 Q3 | 2,024 | 0 | 0 | 0.0 |
| 2004 Q2 | 1,006 | 7 | 4 | 6958.3 |
| 2004 Q1 | 179 | 0 | 0 | 0.0 |
| 2003 Q4 | 538 | 0 | 0 | 0.0 |
| 2003 Q3 | 1,709 | 0 | 0 | 0.0 |
| 2003 Q2 | 892 | 0 | 0 | 0.0 |
| 2003 Q1 | 0 | 0 | 0 |
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.
For insurers, brokers, and safety consultants
The full compliance file on Portable Crusher #1
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.