Knife River Corporation safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
Knife River Newman Aggregate · 04017740.0 on-site hours reported
Handrails and toeboards.
Knife River Newman Aggregate · 040177430 CFR 56.11002
Requirement for container labels.
Knife River Newman Aggregate · 040177430 CFR 47.41(a)
Regular Safety and Health Inspection
KEIZER PIT & PLANT · 350050313.0 on-site hours reported
Electrical conductors.
KEIZER PIT & PLANT · 350050330 CFR 56.12004
Exposure limits for airborne contaminants.
Sioux Falls Quarry · 390000830 CFR 56.5001(a)/56.5005 · Significant and substantial (S&S)
Exposure limits for airborne contaminants.
Sioux Falls Quarry · 390000830 CFR 56.5001(a)/56.5005 · Significant and substantial (S&S)
Exposure limits for airborne contaminants.
Sioux Falls Quarry · 390000830 CFR 56.5001(a)/56.5005 · Significant and substantial (S&S)
Regular Safety and Health Inspection
JTL Portable Crusher #3 · 24024144.5 on-site hours reported
Handling of materials
Corson Sand Plant / Quarry · 3901478Days away from work only
Accident narrative
The employee was using a rake to level gravel prior to compacting and felt a muscle pull in EE's left tricep. EE didn't think it was much more than a strain, but the next morning EE still had some pain in the area.
Special Emphasis Programs
REED PIT · 35029680.8 on-site hours reported
Impoundment Spot Inspection
Concrete, Inc DBA Knife River · 04051402.0 on-site hours reported
Spot Inspection
Sioux Falls Quarry · 390000812.8 on-site hours reported
Other Technical Compliance Investigations
Halawa Valley · 51000360.0 on-site hours reported
Spot Inspection
Hallwood Plant · 04016988.5 on-site hours reported
Housekeeping.
Star Pit #1 · 480138330 CFR 56.20003(a)
Electrical conductors.
Star Pit #1 · 480138330 CFR 56.12004
Horns and backup alarms.
Star Pit #1 · 480138330 CFR 56.14132(b)(1)(i) · Significant and substantial (S&S)
Regular Safety and Health Inspection
Star Pit #1 · 480138314.5 on-site hours reported
Inspection and cover plates.
Star Pit #1 · 480138330 CFR 56.12032
Inspection and cover plates.
Star Pit #1 · 480138330 CFR 56.12032
Moving machine parts.
Star Pit #1 · 480138330 CFR 56.14107(a)
Other Technical Compliance Investigations
Halawa Valley · 51000360.0 on-site hours reported
Machinery
PEBBLY BEACH QUARRY · 0400081Days away from work only
Accident narrative
Employee was cutting hoisting pins on 773F #16 when a hot piece of slag burned through their sock and boot causing a burn on their left ankle
Slip or fall of person
Halawa Valley · 5100036No dys awy frm wrk,no rstr act
Accident narrative
While conducting a post-operational inspection of a water truck, the Team Member tripped while walking in the work area and lost balance. While attempting to brace the fall, the Team Member's right hand contacted a wheel lug, resulting in a laceration between the ring and little finger.
Sources and definitions
MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).
Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.
Status is from the current MSHA Mines snapshot, not the selected reporting period. Closed records can retain their last reported controller/operator.
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.