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U.S. MINING ENTITIES / OPERATOR / L16679

ACTIVE / OPERATOR PORTFOLIO

Knife River Corporation-Northwest

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

MSHA OPERATOR IDL16679

MINE PORTFOLIO

18 of 18 mines and facilities

2025-01-01 – 2026-10-13. Active records; production reporting is not required.

Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Ball Road Quarry3503771 · Active6/8 quarters reportedClackamas, ORSurface · MSHA: Crushed, Broken Basalt028,3681013.3
Farmington Pit3500634 · Active6/8 quarters reportedWashington, ORSurface · MSHA: Crushed, Broken Traprock0104,1473275.8
FISHER ISLAND PLANT3500463 · Active6/8 quarters reportedBenton, ORSurface · MSHA: Crushed, Broken Traprock020,1433124.5
KEIZER PIT & PLANT3500503 · Active6/8 quarters reportedMarion, ORSurface · MSHA: Construction Sand and Gravel08,6580010.5
KIRTLAND3500512 · Active6/8 quarters reportedJackson, ORSurface · MSHA: Construction Sand and Gravel059,7202044.8
METRO PORTABLE #13503558 · Active6/8 quarters reportedColumbia, ORSurface · MSHA: Crushed, Broken Stone NEC010,958125.5
METRO PORTABLE #23503527 · Active6/8 quarters reportedMultnomah, ORSurface · MSHA: Crushed, Broken Stone NEC022,7711238.0
METRO PORTABLE #33500426 · Active6/8 quarters reportedColumbia, ORSurface · MSHA: Crushed, Broken Stone NEC054,9311030.0
METRO PORTABLE #43500495 · Active6/8 quarters reportedColumbia, WASurface · MSHA: Construction Sand and Gravel06,004002.8
REED PIT3502968 · Active6/8 quarters reportedMarion, ORSurface · MSHA: Construction Sand and Gravel091,8789363.3
ROGUE PORTABLE #23503595 · Active6/8 quarters reportedKlamath, ORSurface · MSHA: Crushed, Broken Stone NEC015,9525030.8
ROGUE PORTABLE #33503667 · Active6/8 quarters reportedJackson, ORSurface · MSHA: Crushed, Broken Stone NEC014,6063024.5
ROGUE PORTABLE #43503131 · Active6/8 quarters reportedJackson, ORSurface · MSHA: Crushed, Broken Traprock016,4180222.0
ROGUE PORTABLE #83503639 · Active6/8 quarters reportedDeschutes, ORSurface · MSHA: Crushed, Broken Stone NEC018,9924028.8
STAYTON ROCK PIT3500521 · Active6/8 quarters reportedLinn, ORSurface · MSHA: Construction Sand and Gravel08,9101011.0
WATERVIEW3503605 · Active6/8 quarters reportedColumbia, ORSurface · MSHA: Construction Sand and Gravel046,0155035.3
WILLAMETTE PORTABLE #13503321 · Active6/8 quarters reportedClatsop, ORSurface · MSHA: Crushed, Broken Traprock07,3532019.0
WILLAMETTE PORTABLE #33503642 · Active6/8 quarters reportedLinn, ORSurface · MSHA: Crushed, Broken Stone NEC015,9403032.5

Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.

LOCATION

Portfolio map

18 of 18 mines with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-13Applies to production, safety and portfolio metrics. Silica samples have separate filters.

2025 Q1 – 2026 Q4

JSONCSV

Database snapshot · 2026-10-13. All 18 mines listed under this operator were checked; 18 have reports in the available quarters. Totals use current ownership.

Coal production

0

reported short tons

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q3—No usable value reported
  8. 2026 Q4 *—No usable value reported

Hours worked

551,764

reported employee hours

  1. 2025 Q1100,656
  2. 2025 Q290,766
  3. 2025 Q392,996
  4. 2025 Q485,176
  5. 2026 Q188,816
  6. 2026 Q293,354
  7. 2026 Q3—No usable value reported
  8. 2026 Q4 *—No usable value reported

Tons per hour

0.00

production ÷ hours worked

  1. 2025 Q10.00
  2. 2025 Q20.00
  3. 2025 Q30.00
  4. 2025 Q40.00
  5. 2026 Q10.00
  6. 2026 Q20.00
  7. 2026 Q3—No usable value reported
  8. 2026 Q4 *—No usable value reported

Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.

Quarterly data and reporting coverage
Quarterly production, employment and reporting coverage for Knife River Corporation Northwest
QuarterCoal (short tons)Hours workedTons / hourAvg. employeesCoverage
2025 Q10100,6560.0014518/18 mines reporting
2025 Q2090,7660.0013118/18 mines reporting
2025 Q3092,9960.0012718/18 mines reporting
2025 Q4085,1760.0011718/18 mines reporting
2026 Q1088,8160.0012818/18 mines reporting
2026 Q2093,3540.0012618/18 mines reporting
2026 Q3————No report
2026 Q4————No report

Safety and enforcement

2025-01-01 – 2026-10-13

Violations

44

2 significant & substantial (S&S)

  1. 2025 Q14
  2. 2025 Q29
  3. 2025 Q30
  4. 2025 Q413
  5. 2026 Q11
  6. 2026 Q25
  7. 2026 Q312
  8. 2026 Q4 *0

Accident records

12

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q21
  3. 2025 Q32
  4. 2025 Q40
  5. 2026 Q11
  6. 2026 Q24
  7. 2026 Q34
  8. 2026 Q4 *0

Proposed penalties · USD

8,564.00

44 of 44 violations with amounts

  1. 2025 Q11,773
  2. 2025 Q21,876
  3. 2025 Q3—
  4. 2025 Q42,157
  5. 2026 Q1151
  6. 2026 Q2769
  7. 2026 Q31,838
  8. 2026 Q4 *—

On-site inspection hours

512.00

62 inspections · 62 with hours

  1. 2025 Q176.75
  2. 2025 Q289.00
  3. 2025 Q345.25
  4. 2025 Q4101.00
  5. 2026 Q156.75
  6. 2026 Q279.75
  7. 2026 Q363.50
  8. 2026 Q4 *—

Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.

Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q1401,773.0000876.8
2025-Q2911,876.00101289.0
2025-Q300—20445.3
2025-Q41312,157.000014101.0
2026-Q110151.0010656.8
2026-Q250769.0040879.8
2026-Q31201,838.00401063.5
2026-Q4 *00—000—

Most cited CFR sections

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

SectionViolationsS&S
30 CFR 56.12004Electrical conductors.141
30 CFR 56.14100Safety defects; examination, correction and records.80
30 CFR 56.12008Insulation and fittings for power wires and cables.40
30 CFR 56.12032Inspection and cover plates.30
30 CFR 56.14207Parking procedures for unattended equipment.30
30 CFR 46.9Records of training.20
30 CFR 50.20Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.20
30 CFR 56.11002Handrails and toeboards.20
30 CFR 47.41Requirement for container labels.10
30 CFR 56.12023Guarding electrical connections and resistor grids.10

Safety activity

  1. inspectionF050300
    REED PIT · 3502968

    Special Emphasis Programs · 0.8 on-site hours

  2. violation5160639
    FISHER ISLAND PLANT · 3500463

    56.14100(b) · $151.00 proposed

  3. violation5160638
    FISHER ISLAND PLANT · 3500463

    56.12004 · $151.00 proposed

  4. inspectionF04298B
    FISHER ISLAND PLANT · 3500463

    Regular Safety and Health Inspection · 6.3 on-site hours

  5. violation5160637
    REED PIT · 3502968

    46.9(d)(1) · $151.00 proposed

  6. violation5160635
    REED PIT · 3502968

    56.12004 · $151.00 proposed

  7. violation5160634
    REED PIT · 3502968

    56.11002 · $177.00 proposed

  8. violation5160633
    REED PIT · 3502968

    46.9(a) · $151.00 proposed

  9. violation5160632
    REED PIT · 3502968

    56.12004 · $151.00 proposed

  10. inspectionF04298A
    REED PIT · 3502968

    Regular Safety and Health Inspection · 18.5 on-site hours

  11. inspectionF03C88D
    ROGUE PORTABLE #8 · 3503639

    Compliance Follow-up Inspection · 1.3 on-site hours

  12. violation5160636
    REED PIT · 3502968

    50.20(a) · $151.00 proposed

  13. violation5160631
    REED PIT · 3502968

    50.20(a) · $151.00 proposed

  14. inspectionF03C888
    ROGUE PORTABLE #8 · 3503639

    103 (g) Written Notification Hazard Complaint Inspectio · 3.3 on-site hours

  15. violation5160620
    ROGUE PORTABLE #2 · 3503595

    56.12004 · $151.00 proposed

  16. violation5160619
    ROGUE PORTABLE #2 · 3503595

    56.12008 · $151.00 proposed

  17. inspectionF042984
    ROGUE PORTABLE #2 · 3503595

    Regular Safety and Health Inspection · 5.8 on-site hours

  18. inspectionF040F13
    ROGUE PORTABLE #3 · 3503667

    Regular Safety and Health Inspection · 5.0 on-site hours

  19. accident220262110029
    FISHER ISLAND PLANT · 3500463

    FIRE · ACCIDENT ONLY

    Accident narrative

    Miner was starting up the crusher, had just powered everything on in the MCC then went up into the control tower and heard a loud pop noise and saw smoke come out of MCC knew there was a fire and evacuated and called supervisor. Fire department and power company came out to shut off electrical and put out the fire, fire department is investigating results pending.

  20. inspectionF042981
    FISHER ISLAND PLANT · 3500463

    Non-Injury Accident Investigation · 1.3 on-site hours

  21. accident220262110027
    METRO PORTABLE #2 · 3503527

    HANDLING OF MATERIALS · DYS AWY FRM WRK & RESTRCTD ACT

    Accident narrative

    Miner was shoveling light build up off of a catwalk. Felt something in neck that brought them to their knee. Requested medical, CT scan was done. No known injury, miner was released back to work. Pain continued went back to Dr on 07/20/2026 and got a doctor note requiring time off/ modified duty.

  22. accident220261950019
    ROGUE PORTABLE #4 · 3503131

    HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Team member climbed onto a water truck to check the water level. As they were climbing back down, their left ring became caught on a step, causing a snag incident.

  23. inspectionF03B9B1
    METRO PORTABLE #2 · 3503527

    Regular Safety and Health Inspection · 18.0 on-site hours

  24. violation5100900
    METRO PORTABLE #2 · 3503527

    56.12004 · $151.00 proposed

  25. accident220261950013
    REED PIT · 3502968

    HANDLING OF MATERIALS · DYS AWY FRM WRK & RESTRCTD ACT

    Accident narrative

    Pulling cable out of the water during repairs, lead to a strain in lumbar region.

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.

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

1 linked controller.

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

CONTROLLER / 0176802Knife River Corporation18 selected mines →