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Plant #34 Metal/Non-Metal

Milestone Materials Div/Mathy Construction Co · Surface

Controlled by Mathy Construction Company

Onalaska, La Crosse County, WI · Intermittent

MSHA Mine ID: 4702646

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Email me when a new MSHA incident is filed at Plant #34.

Fatalities: 0
Total incidents: 4
Years on record: 2000–2025
Latest incident: Mar 2025

Compliance record

MSHA citations since 2002

citations

significant & substantial

$922

proposed penalties

$922

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	Per 1M hrs
2025 Q4	709	0	0.0
2025 Q3	913	0	0.0
2025 Q2	934	1	1070.7
2025 Q1	0	0
2024 Q3	873	0	0.0
2024 Q1	131	0	0.0
2023 Q4	721	0	0.0
2023 Q3	976	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

4 on file

2025 · 1 incident

March 26, 2025 WI · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS

Milestone Materials Div/Mathy Construction Co · Caught in, under or between a moving and a stationary object

EE was installing a tire on equipment when their middle finger got caught between the snap wire and the rim flange causing an injury and cut on the right middle finger.

2011 · 1 incident

June 24, 2011 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS

Milestone Materials Div/Mathy Construction Co · Caught in, under or between a moving and a stationary object

While moving rock around metal culvert pipe, rock rolled back towards pipe pinching finger between the rock and the pipe.

2003 · 1 incident

August 16, 2003 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)

Milestone Materials Div/Mathy Construction Co · Struck by flying object

EE WAS HELPING TO PUT A BEARING ON A SHAFT. WHEN THEY BEGAN TO STRIKE A PUNCH WITH A HAMMER A FRAGMENT FLEW OFF THE PUNCH. THE FRAGMENT STRUCK EE'S BICEP AND EMBEDDED.

2000 · 1 incident

January 11, 2000 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)

Milestone Materials Div/Mathy Construction Co · Over-exertion in wielding or throwing objects

WHILE KNOCKING FROZEN MATERIAL OFF A CONVEYOR WITH A HAMMER HE BEGAN HAVING PAIN IN HIS RIGHT ELBOW.