Mining Incidents

Crusher #1 Metal/Non-Metal

Controlled by Knife River Corporation
Boise, Ada County, ID  ·  Active
MSHA Mine ID: 1002089

Crusher #1 has $98K in proposed MSHA penalties and $0 outstanding across 5 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
9
Years on record
2009–2024
Latest incident
Oct 2024
Compliance record
MSHA citations since 2006
100
citations
23
significant & substantial
$98,414
proposed penalties
$56,006
paid to date
57% of proposed penalties paid to date, a $42,408 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2006
56
inspections on record
641
inspection hours
n/a
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.
Rate withheld: 641 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Crusher #1 has $98K in proposed MSHA penalties and $0 outstanding across 5 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$98K
proposed penalties
$56K
current assessed
$56K
paid to date
$0
outstanding
98 assessments are final orders; 5 contested dockets.
As of the most recent assessment on 2025-01-13.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 5,936 0 0 0.0
2025 Q3 6,455 0 0 0.0
2025 Q2 6,014 0 0 0.0
2025 Q1 4,940 9 2 1821.9
2024 Q4 5,109 3 0 587.2
2024 Q3 6,320 4 0 632.9
2024 Q2 5,698 0 0 0.0
2024 Q1 3,235 1 0 309.1
Show 71 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 9,718 0 0 0.0
2023 Q3 12,414 0 0 0.0
2023 Q2 10,570 0 0 0.0
2023 Q1 10,451 1 1 95.7
2022 Q4 9,728 0 0 0.0
2022 Q3 8,491 0 0 0.0
2022 Q2 8,557 0 0 0.0
2022 Q1 8,529 0 0 0.0
2021 Q4 9,398 0 0 0.0
2021 Q3 8,982 0 0 0.0
2021 Q2 8,399 1 0 119.1
2021 Q1 9,020 0 0 0.0
2020 Q4 8,077 1 0 123.8
2020 Q3 8,551 3 1 350.8
2020 Q2 8,021 0 0 0.0
2020 Q1 8,226 1 0 121.6
2019 Q4 9,180 0 0 0.0
2019 Q3 10,323 0 0 0.0
2019 Q2 10,708 10 1 933.9
2019 Q1 8,577 4 2 466.4
2018 Q4 10,966 2 2 182.4
2018 Q3 9,231 0 0 0.0
2018 Q2 9,355 1 0 106.9
2018 Q1 8,089 0 0 0.0
2017 Q4 8,068 6 1 743.7
2017 Q3 9,318 1 1 107.3
2017 Q2 8,253 1 0 121.2
2017 Q1 6,400 2 0 312.5
2016 Q4 4,706 0 0 0.0
2016 Q3 4,526 0 0 0.0
2016 Q2 5,462 1 0 183.1
2016 Q1 11,045 2 0 181.1
2015 Q4 8,145 0 0 0.0
2015 Q3 6,154 0 0 0.0
2015 Q2 10,570 1 0 94.6
2015 Q1 3,239 0 0 0.0
2014 Q4 10,078 2 0 198.5
2014 Q3 12,956 0 0 0.0
2014 Q2 13,373 0 0 0.0
2014 Q1 11,157 0 0 0.0
2013 Q4 7,377 4 1 542.2
2013 Q3 7,401 0 0 0.0
2013 Q2 11,792 0 0 0.0
2013 Q1 10,027 1 0 99.7
2012 Q4 11,636 2 2 171.9
2012 Q3 11,022 2 1 181.5
2012 Q2 9,174 1 1 109.0
2012 Q1 5,824 0 0 0.0
2011 Q4 8,363 0 0 0.0
2011 Q3 9,316 0 0 0.0
2011 Q2 4,351 2 0 459.7
2011 Q1 3,292 0 0 0.0
2010 Q4 5,346 3 1 561.2
2010 Q3 6,867 0 0 0.0
2010 Q2 7,330 2 1 272.9
2010 Q1 4,979 0 0 0.0
2009 Q4 4,609 5 0 1084.8
2009 Q3 9,649 0 0 0.0
2009 Q2 5,034 2 0 397.3
2009 Q1 4,098 0 0 0.0
2008 Q4 3,661 0 0 0.0
2008 Q3 3,883 0 0 0.0
2008 Q2 2,829 0 0 0.0
2008 Q1 2,221 1 0 450.2
2007 Q4 2,955 0 0 0.0
2007 Q3 9,328 0 0 0.0
2007 Q2 7,694 0 0 0.0
2007 Q1 8,000 2 0 250.0
2006 Q4 3,152 0 0 0.0
2006 Q3 5,184 16 5 3086.4
2006 Q2 3,463 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

9 on file

2024 · 1 incident

October 30, 2024 ID · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer OTHER
Knife River Corporation Mountain West · Bodily reaction, (Not Elsewhere Classified)

Employee bent down and knee popped and shooting pain up employee's leg.

2019 · 3 incidents

September 12, 2019 ID · Metal/Non-Metal outside foreman, leadman ELECTRICAL
Knife River Southern Idaho Division · Struck by flying object

Trouble shooting on electrical starter in control van. Employee went to de-energize breaker and the breaker malfunctioned causing small debris to discharge into employee's work area. Debris went inside the top employee's safety glasses. Employee suffered laceration to surface of eye and no impairment is expected.

February 28, 2019 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator POWERED HAULAGE
Knife River Southern Idaho Division · Caught in, under or between a moving and a stationary object

The employee was trying to adjust a chain on the telescoping conveyor. The cable clamp holding the sliding conveyor in place came apart and the conveyor belt slid down crushing the employee.

2018 · 1 incident

August 7, 2018 ID · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE

The employee was on a conveyer belt. Harness was on. The employee failed to follow lockout tagout procedures. The belt was started and the employee jumped from the belt causing a hairline fracture to the right ankle. Employee is currently on light duty.

2017 · 1 incident

September 13, 2017 ID · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker MACHINERY
Knife River Southern Idaho Division · Caught in, under or between running or meshing objects

The employee attempted to stop a pulley and belt system with employee's left hand.

2014 · 1 incident

April 12, 2014 ID · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Knife River Southern Idaho Division · Caught in, under or between a moving and a stationary object

Running a half inch Drill Motor the bit caught and the drill twisted around and fractured the employees right hand,

2010 · 1 incident

November 30, 2010 ID · Metal/Non-Metal ledgeman/hand, quarry man MACHINERY
Knife River Southern Idaho Division · Struck by... (Not Elsewhere Classified)

Mine operator sitting in seat of excavator turned to see what other miner wanted as he had yelled. When he turned in the seat coat sleeve caught swing lever and swung excavator into other operator's foot.

2009 · 1 incident

July 21, 2009 ID · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Knife River · Contact with electrical current

Employee Failed to follow Posted Lock Out TagOut Procedure Wrench fell into electrical box and caused Arc Flash

For insurers, brokers, and safety consultants

The full compliance file on Crusher #1

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.