Mining Incidents

Plant #66 Metal/Non-Metal

Onalaska, La Crosse County, WI  ·  Active
MSHA Mine ID: 4703274

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Fatalities
0
Total incidents
11
Years on record
2003–2018
Latest incident
Aug 2018
Compliance record
MSHA citations since 2001
31
citations
5
significant & substantial
$4,158
proposed penalties
$4,158
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 3,124 0 0 0.0
2025 Q3 0 0 0
2025 Q2 4,573 5 1 1093.4
2025 Q1 2,683 0 0 0.0
2024 Q4 3,396 1 0 294.5
2024 Q3 0 0 0
2024 Q2 0 0 0
2024 Q1 0 0 0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

11 on file

2018 · 1 incident

August 1, 2018 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Milestone Materials Div/Mathy Construction Co · Struck by... (Not Elsewhere Classified)

Operator was removing cutting edge from loader, holding bolt in place with left hand, bolt spun while using impact wrench, cutting operators left thumb.

2016 · 1 incident

2014 · 1 incident

2013 · 1 incident

2009 · 1 incident

2007 · 2 incidents

July 30, 2007 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Milestone Materials Div/Mathy Construction Co · Caught in, under or between a moving and a stationary object

When taking blocking off the frame of the equipment, EE smashed his little finger between block and angle iron resulting in a laceration on the little finger.

2005 · 3 incidents

March 2, 2005 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Milestone Materials Div/Mathy Construction Co · Over-exertion (Not Elsewhere Classified)

Employee reported that he was attempting to use a pry bar to dislodge frozen chunk material from the chute of the bin. This activity apparently resultng in shoulder pain.

2003 · 1 incident