Rock Crusher Metal/Non-Metal
Prairie Sand and Gravel, Inc.
· Surface
Controlled by
Blair E Dillman
PRAIRIE DU CHIEN,
Crawford County,
WI
·
Intermittent
MSHA Mine ID: 4703302
Rock Crusher has $6K in proposed MSHA penalties and $0 outstanding across 1 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 2002
54
citations
14
significant & substantial
$6,383
proposed penalties
$6,383
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2002
39
inspections on record
452
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: 452 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Rock Crusher has $6K in proposed MSHA penalties and $0 outstanding across 1 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.$6K
proposed penalties
$6K
current assessed
$6K
paid to date
$0
outstanding
54 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2025-10-07.
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 Q3 | 356 | 1 | 0 | 2809.0 |
| 2025 Q2 | 250 | 0 | 0 | 0.0 |
| 2025 Q1 | 103 | 0 | 0 | 0.0 |
| 2024 Q4 | 321 | 5 | 2 | 15576.3 |
| 2024 Q3 | 197 | 0 | 0 | 0.0 |
| 2024 Q2 | 436 | 0 | 0 | 0.0 |
| 2024 Q1 | 362 | 3 | 1 | 8287.3 |
| 2023 Q4 | 402 | 0 | 0 | 0.0 |
Show 86 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q3 | 425 | 1 | 0 | 2352.9 |
| 2023 Q2 | 430 | 0 | 0 | 0.0 |
| 2023 Q1 | 283 | 0 | 0 | 0.0 |
| 2022 Q4 | 235 | 0 | 0 | 0.0 |
| 2022 Q3 | 396 | 0 | 0 | 0.0 |
| 2022 Q2 | 465 | 0 | 0 | 0.0 |
| 2022 Q1 | 52 | 2 | 1 | 38461.5 |
| 2021 Q4 | 413 | 0 | 0 | 0.0 |
| 2021 Q3 | 975 | 0 | 0 | 0.0 |
| 2021 Q2 | 883 | 0 | 0 | 0.0 |
| 2021 Q1 | 49 | 0 | 0 | 0.0 |
| 2020 Q4 | 247 | 0 | 0 | 0.0 |
| 2020 Q3 | 388 | 0 | 0 | 0.0 |
| 2020 Q2 | 402 | 0 | 0 | 0.0 |
| 2020 Q1 | 150 | 0 | 0 | 0.0 |
| 2019 Q4 | 631 | 1 | 0 | 1584.8 |
| 2019 Q3 | 487 | 0 | 0 | 0.0 |
| 2019 Q2 | 397 | 0 | 0 | 0.0 |
| 2019 Q1 | 103 | 0 | 0 | 0.0 |
| 2018 Q4 | 342 | 1 | 1 | 2924.0 |
| 2018 Q3 | 875 | 0 | 0 | 0.0 |
| 2018 Q2 | 897 | 0 | 0 | 0.0 |
| 2018 Q1 | 175 | 0 | 0 | 0.0 |
| 2017 Q4 | 754 | 2 | 1 | 2652.5 |
| 2017 Q3 | 983 | 1 | 0 | 1017.3 |
| 2017 Q2 | 399 | 0 | 0 | 0.0 |
| 2017 Q1 | 1 | 0 | 0 | 0.0 |
| 2016 Q4 | 62 | 0 | 0 | 0.0 |
| 2016 Q3 | 771 | 0 | 0 | 0.0 |
| 2016 Q2 | 871 | 0 | 0 | 0.0 |
| 2016 Q1 | 312 | 0 | 0 | 0.0 |
| 2015 Q4 | 324 | 0 | 0 | 0.0 |
| 2015 Q3 | 861 | 0 | 0 | 0.0 |
| 2015 Q2 | 849 | 0 | 0 | 0.0 |
| 2015 Q1 | 0 | 0 | 0 | |
| 2014 Q4 | 757 | 1 | 0 | 1321.0 |
| 2014 Q3 | 829 | 0 | 0 | 0.0 |
| 2014 Q2 | 462 | 0 | 0 | 0.0 |
| 2014 Q1 | 1 | 0 | 0 | 0.0 |
| 2013 Q4 | 358 | 0 | 0 | 0.0 |
| 2013 Q3 | 1,877 | 0 | 0 | 0.0 |
| 2013 Q2 | 692 | 0 | 0 | 0.0 |
| 2013 Q1 | 1 | 0 | 0 | 0.0 |
| 2012 Q4 | 302 | 3 | 0 | 9933.8 |
| 2012 Q3 | 1,459 | 1 | 0 | 685.4 |
| 2012 Q2 | 943 | 0 | 0 | 0.0 |
| 2012 Q1 | 1 | 0 | 0 | 0.0 |
| 2011 Q4 | 36 | 0 | 0 | 0.0 |
| 2011 Q3 | 606 | 0 | 0 | 0.0 |
| 2011 Q2 | 1,208 | 6 | 0 | 4966.9 |
| 2011 Q1 | 0 | 0 | 0 | |
| 2010 Q4 | 617 | 0 | 0 | 0.0 |
| 2010 Q3 | 1,194 | 0 | 0 | 0.0 |
| 2010 Q2 | 538 | 0 | 0 | 0.0 |
| 2010 Q1 | 0 | 0 | 0 | |
| 2009 Q4 | 405 | 0 | 0 | 0.0 |
| 2009 Q3 | 528 | 0 | 0 | 0.0 |
| 2009 Q2 | 82 | 0 | 0 | 0.0 |
| 2009 Q1 | 0 | 0 | 0 | |
| 2008 Q4 | 405 | 5 | 3 | 12345.7 |
| 2008 Q3 | 619 | 0 | 0 | 0.0 |
| 2008 Q2 | 1,162 | 2 | 1 | 1721.2 |
| 2008 Q1 | 92 | 0 | 0 | 0.0 |
| 2007 Q4 | 487 | 0 | 0 | 0.0 |
| 2007 Q3 | 1,333 | 1 | 0 | 750.2 |
| 2007 Q2 | 798 | 0 | 0 | 0.0 |
| 2007 Q1 | 0 | 0 | 0 | |
| 2006 Q4 | 631 | 0 | 0 | 0.0 |
| 2006 Q3 | 1,104 | 6 | 2 | 5434.8 |
| 2006 Q2 | 423 | 0 | 0 | 0.0 |
| 2006 Q1 | 640 | 0 | 0 | 0.0 |
| 2005 Q4 | 1,258 | 0 | 0 | 0.0 |
| 2005 Q3 | 1,671 | 6 | 1 | 3590.7 |
| 2005 Q2 | 749 | 0 | 0 | 0.0 |
| 2005 Q1 | 1 | 0 | 0 | 0.0 |
| 2004 Q4 | 998 | 0 | 0 | 0.0 |
| 2004 Q3 | 1,664 | 1 | 1 | 601.0 |
| 2004 Q2 | 607 | 0 | 0 | 0.0 |
| 2004 Q1 | 0 | 0 | 0 | |
| 2003 Q4 | 417 | 0 | 0 | 0.0 |
| 2003 Q3 | 1,723 | 1 | 0 | 580.4 |
| 2003 Q2 | 1,957 | 0 | 0 | 0.0 |
| 2003 Q1 | 0 | 0 | 0 | |
| 2002 Q4 | 289 | 0 | 0 | 0.0 |
| 2002 Q3 | 1,433 | 0 | 0 | 0.0 |
| 2002 Q2 | 2,713 | 2 | 0 | 737.2 |
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 Rock Crusher
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.