Knife River - South Dakota operator
Controlled by
Knife River Corporation
MSHA operator ID: L15666
- Fatalities
- 0
- Total incidents
- 118
- Mines on record
- 7
- Years on record
- 1983–2026
Compliance record
MSHA citations since 2000
254
citations
30
significant & substantial
$43,610
proposed penalties
$43,925
paid to date
101% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
194
inspections on record
4,140
inspection hours
6.1
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.254 citations across 4,140 inspection hours.
Source: MSHA inspections data, updated weekly.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.$44K
proposed penalties
$44K
current assessed
$44K
paid to date
$0
outstanding
242 assessments are final orders; 9 contested dockets.
As of the most recent assessment on 2026-01-06.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Top causes
- HANDLING OF MATERIALS 43 non-fatal
- SLIP OR FALL OF PERSON 26 non-fatal
- HANDTOOLS (NONPOWERED) 16 non-fatal
- POWERED HAULAGE 11 non-fatal
- MACHINERY 8 non-fatal
- OTHER 6 non-fatal
Incident timeline
2026
1
2025
2
2024
1
2023
4
2022
4
2021
2
2020
3
2019
2
2018
8
2016
3
2015
4
2013
2
2012
1
2011
2
2010
2
2009
3
2008
2
2007
1
2006
2
2005
6
2003
2
2002
4
2000
1
1999
2
1998
2
1996
1
1995
4
1994
6
1993
4
1992
8
1991
4
1990
8
1989
6
1986
5
1985
1
1984
2
1983
2
Mines on record
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The full compliance file on Knife River - South Dakota
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.