Milestone Materials Division Mathy Construction · Struck by... (Not Elsewhere Classified)
While lowering a light on a electrical box, the light came down and hit their jaw, fracturing a molar tooth.
Plant #38 Metal/Non-Metal
Controlled by
Mathy Construction Company
Onalaska,
La Crosse County,
WI
·
Active
MSHA Mine ID: 2100777
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- Fatalities
- 0
- Total incidents
- 9
- Years on record
- 2000–2025
- Latest incident
- Nov 2025
Compliance record
MSHA citations since 2000
55
citations
6
significant & substantial
$8,491
proposed penalties
$8,265
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 | 3,504 | 0 | 0 | 0.0 |
| 2025 Q3 | 3,627 | 2 | 0 | 551.4 |
| 2025 Q2 | 3,938 | 0 | 0 | 0.0 |
| 2025 Q1 | 2,058 | 0 | 0 | 0.0 |
| 2024 Q4 | 3,116 | 0 | 0 | 0.0 |
| 2024 Q3 | 3,687 | 0 | 0 | 0.0 |
| 2024 Q2 | 3,054 | 0 | 0 | 0.0 |
| 2024 Q1 | 1,783 | 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
9 on file2025 · 1 incident
2023 · 1 incident
Milestone Materials Division Mathy Construction · Struck by flying object
Using air nozzle to blow away debris, small piece got into left eye.
2013 · 1 incident
June 29, 2013
WI · Metal/Non-Metal
bulldozer operator, universal operator, heavy equipment operator, operating engineer
MACHINERY
Milestone Materials Division Mathy Construction · Struck against a moving object
EE alleges that while operating a backhoe scaling quarry highwall, his lower back began to hurt after being jarred when a large rock hit the bucket.
2010 · 1 incident
August 11, 2010
WI · Metal/Non-Metal
assayer, geologist, metallurgist, engineer, engineer management
HANDTOOLS (NONPOWERED)
Milestone Materials Division Mathy Construction · Struck by flying object
While pounding/hammering out wedge on hazmag rotor, small piece of metal flew and struck left lower leg.
2005 · 1 incident
September 23, 2005
WI · Metal/Non-Metal
coal/ore shovel operator, shoveler, power shoveler
HANDLING OF MATERIALS
Milestone Materials Division Mathy Construction · Caught in, under or between (Not Elsewhere Classified)
Shutting down at end of day. Employee climbed from the backhoe and the door swung open. When he grabbed it his ring got caught, causing his injury (laceration).
2004 · 1 incident
February 26, 2004
WI · Metal/Non-Metal
bulldozer operator, universal operator, heavy equipment operator, operating engineer
SLIP OR FALL OF PERSON
Milestone Materials Division Mathy Construction · Over-exertion (Not Elsewhere Classified)
EE SLIPPED ON ICE THAT WAS COVERED WITH WATER.
2002 · 1 incident
December 21, 2002
WI · Metal/Non-Metal
mine manager, mine foreman, mine owner
SLIP OR FALL OF PERSON
Milestone Materials Division Mathy Construction · Over-exertion (Not Elsewhere Classified)
WHEN CLIMBING DOWN LADDER STEPPED OFF AND LANDED ON FROZEN CHUNK TWISTING HIS ANKLE.
2001 · 1 incident
Milestone Materials Division Mathy Construction · Over-exertion (Not Elsewhere Classified)
THE MINER STEP FROM THE SKIDSTEER TURNED LEFT ANKLE. AFTER IT BEGAN TO SWELL, HE SOUGHT MEDICAL TREATMENT.
2000 · 1 incident
Milestone Materials Division Mathy Construction · Over-exertion (Not Elsewhere Classified)
EMPLOYEE WAS GETTING OUT OF HIS TRUCKS AT THE SCALE TO WEIGH HIS LOAD- HE HAD TO CLIMB DOWN OVERTHE RAIL. HE STEPPED WRONG AND TWISTED HIS RIGHT KNEE.