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Plant #24 Metal/Non-Metal

Milestone Materials Div/Mathy Construction Co · Surface

Controlled by Mathy Construction Company

Baraboo, Sauk County, WI · Intermittent

MSHA Mine ID: 4703039

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Email me when a new MSHA incident is filed at Plant #24.

Fatalities: 0
Total incidents: 1
Years on record: 2025
Latest incident: May 2025

Compliance record

MSHA citations since 2009

citations

significant & substantial

$762

proposed penalties

$700

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	64	0	0	0.0
2025 Q3	140	0	0	0.0
2025 Q2	568	0	0	0.0
2025 Q1	3	0	0	0.0
2024 Q4	234	0	0	0.0
2024 Q3	194	0	0	0.0
2024 Q2	358	0	0	0.0
2024 Q1	1	0	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

1 on file

2025 · 1 incident

May 29, 2025 WI · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)

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

Employee was striking a steel pin when a metal shard broke off and embedded in EE's leg. After metal shard was removed, a stitch was required to close the laceration.