ALL STATUSES / CONTROLLER PORTFOLIO

Knife River Corporation

Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.

MSHA CONTROLLER ID0176802

MINE PORTFOLIO

253 of 253 mines and facilities

2025-01-01 – 2026-10-17. All statuses records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Mobile Crusher4202680 · AbandonedSalt Lake, UTSurface · MSHA: Crushed, Broken Stone NEC——00—
Mobile Crusher #23503505 · AbandonedCoos, ORSurface · MSHA: Crushed, Broken Stone NEC——00—
Mobile Crusher # 33500555 · AbandonedCoos, ORSurface · MSHA: Construction Sand and Gravel——00—
MRM MOBILE CRUSHER #1762402135 · AbandonedLake, MTSurface · MSHA: Construction Sand and Gravel——00—
MRM WASH PLANT #1702400486 · AbandonedMissoula, MTSurface · MSHA: Construction Sand and Gravel——00—
PAETSCH PIT3502907 · AbandonedLinn, ORSurface · MSHA: Crushed, Broken Stone NEC——00—
Parker Pit3900230 · AbandonedMinnehaha, SDSurface · MSHA: Crushed, Broken Limestone NEC——00—
Pentz Pit0401699 · AbandonedButte, CASurface · MSHA: Construction Sand and Gravel——00—
Pioneer No 489 Pit2102947 · AbandonedChisago, MNSurface · MSHA: Construction Sand and Gravel——00—
Polson Wash Plant2400487 · AbandonedLake, MTSurface · MSHA: Construction Sand and Gravel——00—
Portable #103200172 · AbandonedStutsman, NDSurface · MSHA: Construction Sand and Gravel——00—
Portable #113201035 · AbandonedWilliams, NDSurface · MSHA: Construction Sand and Gravel——004.0
Portable-25100241 · AbandonedHawaii, HISurface · MSHA: Crushed, Broken Stone NEC——00—
Portable #42402047 · Temporarily IdledYellowstone, MTSurface · MSHA: Construction Sand and Gravel——109.5
Portable Base Crusher2401360 · AbandonedFlathead, MTSurface · MSHA: Construction Sand and Gravel——00—
Portable Crusher #22402348 · AbandonedMissoula, MTSurface · MSHA: Construction Sand and Gravel——00—
Portable Crushing Plant #43200734 · AbandonedBurleigh, NDSurface · MSHA: Construction Sand and Gravel——00—
Portable Plant #123200711 · AbandonedKidder, NDSurface · MSHA: Construction Sand and Gravel——00—
Portable Plant #23200966 · AbandonedBurleigh, NDSurface · MSHA: Construction Sand and Gravel——00—
PORTABLE PLANT # 93200990 · Temporarily IdledRichland, MTSurface · MSHA: Construction Sand and Gravel——000.0
Portable Screen2402326 · AbandonedYellowstone, MTSurface · MSHA: Construction Sand and Gravel——00—
Portable Wash Plant2102791 · AbandonedBeltrami, MNSurface · MSHA: Construction Sand and Gravel——00—
Read Screen3901496 · AbandonedMinnehaha, SDSurface · MSHA: Construction Sand and Gravel——00—
Reclaim2103783 · AbandonedLake Of The Woods, MNSurface · MSHA: Crushed, Broken Granite——00—
Rice Street Sandplant3900225 · AbandonedMinnehaha, SDSurface · MSHA: Construction Sand and Gravel——00—
Rip Rap2100519 · Temporarily IdledBenton, MNSurface · MSHA: Construction Sand and Gravel——001.8
River Bend Pit4102639 · AbandonedBrazos, TXSurface · MSHA: Construction Sand and Gravel——00—
River Pit Wash Plant2402110 · AbandonedFlathead, MTSurface · MSHA: Construction Sand and Gravel——00—
ROGUE PORTABLE #13503496 · AbandonedJackson, ORSurface · MSHA: Crushed, Broken Stone NEC——00—
ROGUE PORTABLE #53503752 · AbandonedJackson, ORSurface · MSHA: Crushed, Broken Stone NEC——003.8
ROGUE PORTABLE #93503380 · AbandonedDouglas, ORSurface · MSHA: Crushed, Broken Stone NEC——00—
Sanford Pit And Mill2102556 · AbandonedMille Lacs, MNSurface · MSHA: Construction Sand and Gravel——00—
Small Portable Screen2402145 · AbandonedMissoula, MTSurface · MSHA: Construction Sand and Gravel——00—
Stony Creek/Gilmore Plant0401824 · AbandonedGlenn, CASurface · MSHA: Construction Sand and Gravel——00—
ST PAUL3503119 · AbandonedMarion, ORSurface · MSHA: Crushed, Broken Stone NEC——00—
SUMMIT PIT3900226 · AbandonedRoberts, SDSurface · MSHA: Construction Sand and Gravel——00—
SUNDIAL3503401 · AbandonedMultnomah, ORSurface · MSHA: Construction Sand and Gravel——00—
TEECO PORTABLE CRUSHER3503310 · AbandonedDouglas, ORSurface · MSHA: Crushed, Broken Traprock——00—
Telesmith Wash Plant Portable2402500 · AbandonedFlathead, MTSurface · MSHA: Construction Sand and Gravel——00—
VIESKO PIT AND PLANT3500557 · AbandonedMarion, ORSurface · MSHA: Construction Sand and Gravel——00—
V R Pit4801670 · AbandonedConverse, WYSurface · MSHA: Construction Sand and Gravel——00—
Waikapu Pit And Mill5100120 · AbandonedMaui, HISurface · MSHA: Construction Sand and Gravel——00—
Waikapu Sand Pit5100296 · AbandonedMaui, HISurface · MSHA: Construction Sand and Gravel——00—
Wash Plant2400459 · Temporarily IdledYellowstone, MTSurface · MSHA: Construction Sand and Gravel——000.5
Wash Plant #33200967 · AbandonedBurleigh, NDSurface · MSHA: Construction Sand and Gravel——00—
Wash Plant #41002092 · AbandonedAda, IDSurface · MSHA: Construction Sand and Gravel——00—
Wash Plant 457092100449 · AbandonedClearwater, MNSurface · MSHA: Construction Sand and Gravel——00—
Wash Plant 457202103358 · AbandonedBeltrami, MNSurface · MSHA: Construction Sand and Gravel——00—
WASH SCREW #457232103627 · AbandonedBeltrami, MNSurface · MSHA: Construction Sand and Gravel——001.8
WATTERS PIT3500138 · AbandonedColumbia, ORSurface · MSHA: Crushed, Broken Stone NEC——00—
WILLAMETTE PORTABLE #43500480 · AbandonedYamhill, ORSurface · MSHA: Construction Sand and Gravel——00—
WOODWARD PLANT3503478 · AbandonedCrook, ORSurface · MSHA: Crushed, Broken Stone NEC——107.5
Wright County Pits2102900 · AbandonedWright, MNSurface · MSHA: Construction Sand and Gravel——00—

LOCATION

Portfolio map

195 of 253 mines with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-17Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

349

58 significant & substantial (S&S)

  1. 2025 Q131
  2. 2025 Q296
  3. 2025 Q319
  4. 2025 Q440
  5. 2026 Q120
  6. 2026 Q273
  7. 2026 Q357
  8. 2026 Q4 *13

Accident records

43

0 records classified as fatality

  1. 2025 Q12
  2. 2025 Q22
  3. 2025 Q310
  4. 2025 Q44
  5. 2026 Q14
  6. 2026 Q29
  7. 2026 Q311
  8. 2026 Q4 *1

Proposed penalties · USD

115,966.00

311 of 349 violations with amounts

  1. 2025 Q114,177
  2. 2025 Q222,924
  3. 2025 Q32,886
  4. 2025 Q48,064
  5. 2026 Q120,257
  6. 2026 Q234,468
  7. 2026 Q313,190
  8. 2026 Q4 *—

On-site inspection hours

2,449.75

374 inspections · 374 with hours

  1. 2025 Q1197.50
  2. 2025 Q2520.50
  3. 2025 Q3283.50
  4. 2025 Q4301.50
  5. 2026 Q1296.00
  6. 2026 Q2455.25
  7. 2026 Q3364.75
  8. 2026 Q4 *30.75
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q131814,177.002037197.5
2025-Q2961422,924.002071520.5
2025-Q31912,886.0010046283.5
2025-Q44058,064.004041301.5
2026-Q120620,257.004035296.0
2026-Q273934,468.009064455.3
2026-Q357913,190.0011074364.8
2026-Q4 *136—10630.8

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. inspectionF0504BA
    KEIZER PIT & PLANT · 3500503

    Regular Safety and Health Inspection · 0.0 on-site hours

  2. violation5160695
    KEIZER PIT & PLANT · 3500503

    56.12004

  3. violation5112292
    Sioux Falls Quarry · 3900008

    56.5001(a)/56.5005 · S&S

  4. violation5112291
    Sioux Falls Quarry · 3900008

    56.5001(a)/56.5005 · S&S

  5. violation5112290
    Sioux Falls Quarry · 3900008

    56.5001(a)/56.5005 · S&S

  6. inspectionF03B3FE
    Billings Pit · 2400478

    Regular Safety and Health Inspection · 4.5 on-site hours

  7. inspectionF03B3FD
    JTL Portable Crusher #3 · 2402414

    Regular Safety and Health Inspection · 4.5 on-site hours

  8. violation5033814
    Billings Pit · 2400478

    56.14107(a) · S&S

  9. accident220262810054
    Crusher #1 · 3200950

    OTHER · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Miner had an allergic reaction to a bee sting

  10. inspectionF04211F
    Wash Plant 2 · 1002090

    Regular Safety and Health Inspection · 4.0 on-site hours

  11. inspectionF04211E
    Wash Plant 3 · 1002161

    Regular Safety and Health Inspection · 4.5 on-site hours

  12. violation5212169
    Crusher #1 · 3200950

    56.11011 · S&S

  13. violation5212168
    Crusher #1 · 3200950

    50.20(a)

  14. violation5212167
    Crusher #1 · 3200950

    56.12004

  15. violation5212166
    Crusher #1 · 3200950

    56.14107(a) · S&S

  16. violation5212165
    Crusher #1 · 3200950

    56.14112(a)(1)

  17. violation5212164
    Crusher #1 · 3200950

    56.14112(a)(1)

  18. violation5212163
    Crusher #1 · 3200950

    56.12004

  19. violation5212162
    Crusher #1 · 3200950

    56.12013(c)

  20. inspectionF031224
    Crusher #1 · 3200950

    Regular Safety and Health Inspection · 13.3 on-site hours

  21. inspectionF050300
    REED PIT · 3502968

    Special Emphasis Programs · 0.8 on-site hours

  22. inspectionF057391
    Crusher #43521 · 2103572

    Compliance Follow-up Inspection · 1.5 on-site hours

  23. inspectionF005BEF
    Concrete, Inc DBA Knife River · 0405140

    Impoundment Spot Inspection · 0.0 on-site hours

  24. inspectionF046911
    Sioux Falls Quarry · 3900008

    Spot Inspection · 12.8 on-site hours

  25. inspectionF052C49
    503990 · 2103086

    Spot Inspection · 4.8 on-site hours

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-17.

Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.

Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.

S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.

Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.

Portfolio totals use current mine membership, including events before the current owner or operator's tenure.

CFR headings link to the current Title 30 index; they are not historical legal determinations.

SELECTED PORTFOLIO

18 linked operators.

Relationships reflect the selected mine status and current MSHA controller/operator fields.