Mining Incidents

Rip Rap Metal/Non-Metal

Controlled by Knife River Corporation
Sauk Rapids, Benton County, MN  ·  Intermittent
MSHA Mine ID: 2100519

Rip Rap has $2K 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 2001
21
citations
3
significant & substantial
$2,005
proposed penalties
$2,005
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
18
inspections on record
195
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: 195 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Rip Rap has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
21 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2013-08-05.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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 1,201 0 0 0.0
2025 Q3 817 0 0 0.0
2025 Q2 1,691 0 0 0.0
2013 Q3 195 2 0 10256.4
2013 Q2 11 0 0 0.0
2013 Q1 1 0 0 0.0
2012 Q4 235 0 0 0.0
2012 Q3 842 0 0 0.0
Show 50 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2012 Q2 151 0 0 0.0
2012 Q1 0 0 0
2011 Q4 761 0 0 0.0
2011 Q3 117 0 0 0.0
2011 Q2 368 0 0 0.0
2011 Q1 0 0 0
2010 Q4 165 1 1 6060.6
2010 Q3 325 0 0 0.0
2010 Q2 101 0 0 0.0
2010 Q1 0 0 0
2009 Q4 160 0 0 0.0
2009 Q3 216 0 0 0.0
2009 Q2 136 0 0 0.0
2009 Q1 0 0 0
2008 Q4 59 1 0 16949.2
2008 Q3 251 7 0 27888.4
2008 Q2 44 0 0 0.0
2008 Q1 0 0 0
2007 Q4 214 0 0 0.0
2007 Q3 385 0 0 0.0
2007 Q2 418 0 0 0.0
2007 Q1 0 0 0
2006 Q4 3,107 0 0 0.0
2006 Q3 3,715 0 0 0.0
2006 Q2 3,522 0 0 0.0
2006 Q1 2,949 0 0 0.0
2005 Q4 3,180 0 0 0.0
2005 Q3 5,035 0 0 0.0
2005 Q2 4,595 0 0 0.0
2005 Q1 3,222 0 0 0.0
2004 Q4 3,797 0 0 0.0
2004 Q3 4,050 0 0 0.0
2004 Q2 4,054 0 0 0.0
2004 Q1 3,037 0 0 0.0
2003 Q4 3,817 0 0 0.0
2003 Q3 4,011 0 0 0.0
2003 Q2 3,943 2 1 507.2
2003 Q1 3,286 0 0 0.0
2002 Q4 3,739 0 0 0.0
2002 Q3 4,723 0 0 0.0
2002 Q2 4,563 0 0 0.0
2002 Q1 0 0 0
2001 Q4 4,463 0 0 0.0
2001 Q3 3,834 0 0 0.0
2001 Q2 3,751 8 1 2132.8
2001 Q1 2,371 0 0 0.0
2000 Q4 3,384 0 0 0.0
2000 Q3 3,316 0 0 0.0
2000 Q2 3,323 0 0 0.0
2000 Q1 3,062 0 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 Rip Rap

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.