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Establishment profile

Knife River Corporation

4800 Wilkie Street, MISSOULA, MT, 59808
Operated by Knife River Corp · 1 of 193 establishments
327320Ready-Mix Concrete Manufacturing
EIN 810465363

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OSHA inspections
0
Violations
0
Penalties
$0
Violations across 2 federal agencies
Enforcement actions from multiple agencies may indicate systemic compliance issues across functions.
Context
No OSHA inspections on record. This does not mean the employer is violation-free — OSHA inspects a small fraction of workplaces annually.

Summary

Knife River Corporation has no OSHA inspection history on file. Federal records covering wage, environmental, labor relations, and other agencies are noted below where present.

The most recent federal enforcement activity was recorded 0 days ago.

Federal records were found in 2 of 15 sources. Sources without matching records returned empty for this establishment.

Agency coverage

Knife River Corporation appears in MSHA mine safety and NLRB labor relations records only. No matching records were found in OSHA workplace safety, WHD wage enforcement, EPA environmental compliance, OFLC visa and labor certification (historical), FMCSA motor carrier registration, SAM.gov federal debarment, CMS nursing home enforcement, UVA Corporate Prosecution Registry, CPSC product recalls, or NHTSA vehicle recalls.

OSHA workplace safety

No OSHA inspections, citations, or accidents on file for Knife River Corporation. Verify directly with Occupational Safety and Health Administration

Safety self-report (OSHA 300A)

Recordable injury rates the employer filed with OSHA’s Injury Tracking Application. DART covers cases with days away, restricted, or transferred; TRIR is the total recordable case rate.

DART rate
5.3
vs industry
+3.7
TRIR
5.3
vs industry
+2.8

Reported for 50 average annual employees at this establishment.

Source: OSHA ITA Form 300A (employer self-reported). Rates are per 100 full-time equivalent workers. Establishments below the ~10-FTE threshold are not required to report.

Industry benchmark

Industry avg TRIR
2.5
BLS SOII 2024
Industry avg DART
1.6
BLS SOII 2024
Self-reported TRIR
5.3
OSHA ITA Form 300A (employer self-reported)

BLS rates reflect industry-wide averages. Self-reported figures come from OSHA’s Injury Tracking Application; absence of self-reported data does not necessarily indicate non-compliance — many establishments fall below the ITA reporting threshold.

OSHA severe injury reports

Self-reported events under 29 CFR 1904.39 (24-hour notification of hospitalization, amputation, or loss of an eye) · Mar 2016 – Jul 2024 · 1 in last 5 years

Reports
2
Hospitalizations
1
Amputations
1
Eye losses
0

Most frequent event: Contact with objects and equipment, n.e.c.

Source: OSHA Severe Injury Reports (federal OSHA only; state-plan states like California, Oregon, and Washington maintain their own programs and do not consistently report into this feed).

Severe injury reports — events

Each row is a hospitalization, amputation, or eye-loss event the employer self-reported to OSHA under 29 CFR 1904.39. Narratives are written by the reporting employer.

DateEventBody partOutcome
Jul 17, 2024Other fall to lower level 6 to 30 feetTrunk and other lower extremitiesHospitalized
Mar 9, 2016Contact with objects and equipment, n.e.c.Finger(s), fingernail(s), n.e.c.Amputation

Source: OSHA Severe Injury Reports. Federal-OSHA jurisdiction only by default; some state-plan programs report voluntarily.

Activity timeline

Data refreshed
Weekly
First OSHA inspection
Most recent activity
0 days ago

Most recent federal enforcement activity recorded 0 days ago. Data on this page is refreshed weekly.

Wage & Hour Division (WHD)

No WHD wage, overtime, or child-labor enforcement cases on file for Knife River Corporation. Verify directly with Wage and Hour Division

Mine safety (MSHA)

Company-level in MT — for Knife River Corp, not this location alone

Violations
136
Assessed penalties
$26,844

Mine Safety & Health Administration — citations issued at mining operations. MSHA records cases at the company/regional level (no worksite address), so these are matched by company name and state and may span other Knife River Corp operations in the same state.

MSHA citations

Mine Safety and Health Administration citations. S&S (significant and substantial) marks violations that could reasonably contribute to a serious injury. Negligence rating is MSHA’s operator-culpability assessment (none, low, moderate, high, or reckless disregard). Proposed = assessed at issuance; Paid = post-settlement / appeal. 100 citations · 18S&S · 5 contractor · $24,289 proposed / $24,289 paid.

CitationMineDateSectionS&SNegligenceProposedPaid
9470466
Belgrade Pit
Gallatin, MT
Jul 2019YesModNegligence$2,763$2,763
9828501
Belgrade Pit
Gallatin, MT
Jan 2025YesModNegligence$1,818$1,818
6457307
Belgrade Pit
Gallatin, MT
Apr 2010YesModNegligence$1,700$1,700
6457313
Belgrade Pit
Gallatin, MT
Apr 2010YesModNegligence$1,052$1,052
6322678
Belgrade Pit
Gallatin, MT
Apr 2006YesHighNegligence$700$700
6457308
Belgrade Pit
Gallatin, MT
Apr 2010YesModNegligence$634$634
9653343
Belgrade Pit
Gallatin, MT
May 2022NoModNegligence$610$610
5053950
Belgrade Pit
Gallatin, MT
Nov 2025NoModNegligence$549$549
9305859
Belgrade Pit
Gallatin, MT
Mar 2017YesModNegligence$533$533
8750130
Gold Creek Placer
Powell, MT
contractor: Knife River
Aug 2013YesModNegligence$460$460
9653329
Belgrade Pit
Gallatin, MT
Mar 2022NoModNegligence$442$442
9308532
Belgrade Pit
Gallatin, MT
Dec 2019NoModNegligence$412$412
9653953
Belgrade Pit
Gallatin, MT
Aug 2023YesModNegligence$318$318
9653332
Belgrade Pit
Gallatin, MT
Mar 2022NoModNegligence$296$296
9653331
Belgrade Pit
Gallatin, MT
Mar 2022NoModNegligence$296$296
9653330
Belgrade Pit
Gallatin, MT
Mar 2022NoModNegligence$296$296
9308533
Belgrade Pit
Gallatin, MT
Dec 2019NoModNegligence$275$275
9653345
Belgrade Pit
Gallatin, MT
May 2022NoModNegligence$273$273
8750127
Gold Creek Placer
Powell, MT
contractor: Knife River
Sep 2013YesLowNegligence$249$249
9906253
Belgrade Pit
Gallatin, MT
Jul 2024NoHighNegligence$239$239
8763324
Belgrade Pit
Gallatin, MT
Jun 2015YesModNegligence$190$190
8588949
Belgrade Pit
Gallatin, MT
Mar 2012YesModNegligence$190$190
9478500
Belgrade Pit
Gallatin, MT
Mar 2021YesModNegligence$187$187
9478494
Belgrade Pit
Gallatin, MT
Mar 2021NoHighNegligence$187$187
9653344
Belgrade Pit
Gallatin, MT
May 2022NoModNegligence$183$183
6323650
Belgrade Pit
Gallatin, MT
Sep 2006YesModNegligence$177$177
8935483
Belgrade Pit
Gallatin, MT
Jul 2016YesModNegligence$171$171
9470467
Belgrade Pit
Gallatin, MT
Jul 2019NoModNegligence$168$168
9470465
Belgrade Pit
Gallatin, MT
Jul 2019NoModNegligence$168$168
9470464
Belgrade Pit
Gallatin, MT
Jul 2019NoModNegligence$168$168
5053949
Belgrade Pit
Gallatin, MT
Nov 2025NoLowNegligence$165$165
9906252
Belgrade Pit
Gallatin, MT
Jul 2024NoHighNegligence$161$161
9906216
Belgrade Pit
Gallatin, MT
Jan 2024NoHighNegligence$161$161
9306450
Belgrade Pit
Gallatin, MT
May 2017YesModNegligence$160$160
5053921
Belgrade Pit
Gallatin, MT
Jul 2025NoModNegligence$151$151
5053920
Belgrade Pit
Gallatin, MT
Jul 2025NoLowNegligence$151$151
9906258
Belgrade Pit
Gallatin, MT
Jul 2024NoModNegligence$147$147
9906257
Belgrade Pit
Gallatin, MT
Jul 2024NoLowNegligence$147$147
9906256
Belgrade Pit
Gallatin, MT
Jul 2024NoModNegligence$147$147
9906255
Belgrade Pit
Gallatin, MT
Jul 2024NoModNegligence$147$147
9906254
Belgrade Pit
Gallatin, MT
Jul 2024NoModNegligence$147$147
9906217
Belgrade Pit
Gallatin, MT
Jan 2024NoLowNegligence$147$147
9906215
Belgrade Pit
Gallatin, MT
Jan 2024NoLowNegligence$147$147
9906214
Belgrade Pit
Gallatin, MT
Jan 2024NoModNegligence$147$147
9906213
Belgrade Pit
Gallatin, MT
Jan 2024NoModNegligence$147$147
9653947
Belgrade Pit
Gallatin, MT
Aug 2023NoModNegligence$143$143
9653946
Belgrade Pit
Gallatin, MT
Aug 2023NoModNegligence$143$143
9653945
Belgrade Pit
Gallatin, MT
Aug 2023NoModNegligence$143$143
8588957
Belgrade Pit
Gallatin, MT
Mar 2012YesModNegligence$127$127
9652717
Belgrade Pit
Gallatin, MT
Sep 2021NoModNegligence$125$125
9652716
Belgrade Pit
Gallatin, MT
Sep 2021NoModNegligence$125$125
9650102
Belgrade Pit
Gallatin, MT
Mar 2021NoModNegligence$125$125
9650101
Belgrade Pit
Gallatin, MT
Mar 2021NoModNegligence$125$125
9478499
Belgrade Pit
Gallatin, MT
Mar 2021NoModNegligence$125$125
9478498
Belgrade Pit
Gallatin, MT
Mar 2021NoModNegligence$125$125
9478497
Belgrade Pit
Gallatin, MT
Mar 2021NoModNegligence$125$125
9478496
Belgrade Pit
Gallatin, MT
Mar 2021NoModNegligence$125$125
9478495
Belgrade Pit
Gallatin, MT
Mar 2021NoModNegligence$125$125
6271125
Belgrade Pit
Gallatin, MT
Jul 2004YesModNegligence$124$124
9307969
Belgrade Pit
Gallatin, MT
Jan 2019NoModNegligence$121$121
9307968
Belgrade Pit
Gallatin, MT
Jan 2019NoModNegligence$121$121
9307967
Belgrade Pit
Gallatin, MT
Jan 2019NoModNegligence$121$121
9307966
Belgrade Pit
Gallatin, MT
Jan 2019NoModNegligence$121$121
9307965
Belgrade Pit
Gallatin, MT
Jan 2019NoModNegligence$121$121
9307964
Belgrade Pit
Gallatin, MT
Jan 2019NoModNegligence$121$121
9306930
Belgrade Pit
Gallatin, MT
Jul 2018NoLowNegligence$118$118
9306929
Belgrade Pit
Gallatin, MT
Jul 2018NoLowNegligence$118$118
9306928
Belgrade Pit
Gallatin, MT
Jul 2018NoLowNegligence$118$118
9306927
Belgrade Pit
Gallatin, MT
Jul 2018NoLowNegligence$118$118
9306889
Belgrade Pit
Gallatin, MT
Feb 2018NoModNegligence$118$118
9306888
Belgrade Pit
Gallatin, MT
Feb 2018NoModNegligence$118$118
9306887
Belgrade Pit
Gallatin, MT
Feb 2018NoModNegligence$118$118
9306453
Belgrade Pit
Gallatin, MT
May 2017NoModNegligence$116$116
9306452
Belgrade Pit
Gallatin, MT
May 2017NoModNegligence$116$116
9306451
Belgrade Pit
Gallatin, MT
May 2017NoModNegligence$116$116
9306449
Belgrade Pit
Gallatin, MT
May 2017NoModNegligence$116$116
9306448
Belgrade Pit
Gallatin, MT
May 2017NoModNegligence$116$116
9305861
Belgrade Pit
Gallatin, MT
Mar 2017NoModNegligence$116$116
9305860
Belgrade Pit
Gallatin, MT
Mar 2017NoModNegligence$116$116
9305858
Belgrade Pit
Gallatin, MT
Mar 2017NoModNegligence$116$116
8935485
Belgrade Pit
Gallatin, MT
Jul 2016NoModNegligence$114$114
8935484
Belgrade Pit
Gallatin, MT
Jul 2016NoModNegligence$114$114
8935253
Belgrade Pit
Gallatin, MT
Oct 2015NoModNegligence$100$100
8935252
Belgrade Pit
Gallatin, MT
Oct 2015NoModNegligence$100$100
8935251
Belgrade Pit
Gallatin, MT
Oct 2015NoModNegligence$100$100
8763323
Belgrade Pit
Gallatin, MT
Jun 2015NoModNegligence$100$100
8763322
Belgrade Pit
Gallatin, MT
Jun 2015NoModNegligence$100$100
8763321
Belgrade Pit
Gallatin, MT
Jun 2015NoModNegligence$100$100
8763267
Belgrade Pit
Gallatin, MT
Oct 2014NoModNegligence$100$100
8763266
Belgrade Pit
Gallatin, MT
Oct 2014NoModNegligence$100$100
8763026
Belgrade Pit
Gallatin, MT
Jul 2014NoModNegligence$100$100
8763025
Belgrade Pit
Gallatin, MT
Jul 2014NoModNegligence$100$100
8758261
Belgrade Pit
Gallatin, MT
Nov 2013NoModNegligence$100$100
8750129
Gold Creek Placer
Powell, MT
contractor: Knife River
Sep 2013NoLowNegligence$100$100
8750128
Gold Creek Placer
Powell, MT
contractor: Knife River
Sep 2013NoModNegligence$100$100
8750131
Gold Creek Placer
Powell, MT
contractor: Knife River
Aug 2013NoModNegligence$100$100
8757449
Belgrade Pit
Gallatin, MT
Apr 2013NoModNegligence$100$100
8588956
Belgrade Pit
Gallatin, MT
Mar 2012NoModNegligence$100$100
8588955
Belgrade Pit
Gallatin, MT
Mar 2012NoModNegligence$100$100
8588954
Belgrade Pit
Gallatin, MT
Mar 2012NoModNegligence$100$100

Source: MSHA citation database. “Contractor” annotations indicate the cited party was on-site at the mine but not the mine’s operator -- responsibility attaches to the contractor LLC, not the mine’s owner. Section codes reference 30 CFR (the Mine Safety and Health regulations).

Labor relations (NLRB)

Company-level in MT — for Knife River Corp, not this location alone

Total cases
5
Unfair labor practice
4

National Labor Relations Board — unfair labor practice charges and union representation cases. The NLRB records cases at the company/regional level (no worksite address), so these are matched by company name and state and may span other Knife River Corp locations in the same state.

NLRB cases

National Labor Relations Board cases involving this employer. Includes unfair labor practice (ULP) filings and representation election proceedings. NLRB enforcement is process-driven; no per-case monetary penalty is assessed (remedies are case-by-case backpay orders, posting requirements, election re-runs, etc.). 5 cases · 4 ULP

Case numberTypeFiledClosedStatusRegion
19-CA-188177Unfair labor practiceNov 2016Apr 2017ClosedRegion 19, Seattle, Washington
19-CA-179192Unfair labor practiceJun 2016Apr 2017ClosedRegion 19, Seattle, Washington
19-CA-175890Unfair labor practiceMay 2016Apr 2017ClosedRegion 19, Seattle, Washington
27-UC-000228UCAug 2008Sep 2008ClosedRegion 27, Denver, Colorado
27-CA-020966Unfair labor practiceAug 2008Sep 2008ClosedRegion 27, Denver, Colorado

Source: NLRB case files. Rows shown are those the agency has published. Region numbers (1–31) correspond to NLRB's geographic offices.

Visa & labor certification (OFLC) — historical

No H-1B, H-2A, or H-2B labor condition applications on file (historical data only — DOL ended OFLC publication) for Knife River Corporation. Verify directly with Office of Foreign Labor Certification

Environmental compliance (EPA)

No EPA inspections or formal enforcement actions on file for Knife River Corporation. Verify directly with Environmental Protection Agency

Federal criminal prosecution record

No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for Knife River Corporation. Verify directly with UVA Corporate Prosecution Registry

Federal contracts

No federal contracts are recorded to this specific location.

Company-wide — MDU RESOURCES GROUP, INC. (across 46 entities)
Obligated (5-yr)
$27.8M
Obligated (all-time)
$256.1M
Awards (all-time)
1,038

Consolidated across all USAspending recipient entities under this corporate parent — not attributable to this single location.

Federal contract activity for the parent corporation. Source: USAspending.gov, net obligations. Recipient address is the SAM registration / HQ address, not necessarily the worksite.

In the news

Part of a larger organization

Knife River Corporation is one of 193 establishments rolled up under the parent organization Knife River Corp.

Federal enforcement records on this page represent activity at this specific establishment only. The full enforcement footprint of Knife River Corp across all 193 of its tracked locations is viewable on the parent profile.

Other employers in this industry and state

Other employers in ready-mix concrete manufacturing within MT, ordered by federal enforcement volume:

Other locations under this parent

Other establishments operated by Knife River Corp, ordered by federal enforcement volume:

Related searches

About this data

This profile aggregates federal enforcement records on Knife River Corporation from every major federal compliance and enforcement source plus the UVA Corporate Prosecution Registry. OSHA workplace safety inspections, WHD wage cases, MSHA mine safety, EPA environmental enforcement, NLRB labor relations, OFLC visa/labor certification, FMCSA motor carrier registration, SAM.gov debarments, CMS nursing-home records, BLS industry safety benchmarks, OSHA ITA self-reported injury rates, SEC enforcement and financial disclosures, CPSC and NHTSA recalls.

Establishments are matched across agencies using normalized employer name, state, and ZIP code. This establishment resolves to the parent rollup Knife River Corp, which operates 193 establishments in our dataset.

OSHA citations typically appear 3–8 months after the inspection, so very recent enforcement actions may not yet be reflected. Profiles may be incomplete if the establishment operates under multiple legal names or files under variations our entity-matching rules don’t yet cover. To report a missing record or correction, email corrections@fastdol.com.

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Frequently asked

What is Knife River Corporation's OSHA violation history?
Knife River Corporation has no OSHA inspections on record.
How does Knife River Corporation's safety record compare to its industry?
Knife River Corporation operates in the ready-mix concrete manufacturing industry. The industry average Total Recordable Incident Rate (TRIR) is 2.5. Knife River Corporation's self-reported DART rate is 5.31 compared to an industry average of 1.6.