Key Takeaway

Plant #45 is a active surface mine producing Stone, located in Plain, Sauk County, WI. It has 35 violations on record (5 S&S) and $6K in proposed penalties. Operated by Milestone Materials Div/Mathy Construction Co.

Plant #45

Active Surface Stone

Operator: Milestone Materials Div/Mathy Construction Co

Controller: Mathy Construction Company

Location: Plain, Sauk County, WI

Employees: 4

35
Violations
5
S&S Violations
17
Accidents
$6K
Penalties

Recent Violations

View all 35 →
Date Section S&S Negligence Penalty
06/06/2019 56.5001(a)/.5005 Non-S&S HighNegligence $250
06/06/2019 56.5001(a)/.5005 Non-S&S HighNegligence $250
06/06/2019 56.5001(a)/.5005 Non-S&S HighNegligence $250
06/05/2019 56.14107(a) Non-S&S ModNegligence $121
03/21/2019 56.12004 Non-S&S ModNegligence $121
03/19/2019 56.14105 S&S LowNegligence $121
03/19/2019 56.12004 Non-S&S LowNegligence $121
09/12/2018 56.14100(b) Non-S&S LowNegligence $121
04/19/2017 56.14130(i) S&S ModNegligence $330
04/19/2017 56.14206(b) Non-S&S HighNegligence $116
04/30/2015 56.12018 Non-S&S ModNegligence $100
04/30/2015 56.14132(b)(1) S&S ModNegligence $100
12/18/2012 56.14132(b)(1) S&S LowNegligence $108
12/18/2012 56.9300(a) Non-S&S LowNegligence $100
11/08/2011 56.14107(a) Non-S&S ModNegligence $100
03/16/2010 56.4501 Non-S&S LowNegligence $100
07/08/2009 56.14107(a) S&S ModNegligence $100
07/08/2009 56.3200 Non-S&S ModNegligence $2,341
07/08/2009 Non-S&S $0
11/19/2008 56.16005 Non-S&S LowNegligence $100

Accidents & Injuries

View all 17 →
Date Classification Injury Days Lost
10/13/2025 HANDLING OF MATERIALS DAYS AWAY FROM WORK ONLY 2d lost
09/22/2023 MACHINERY NO DYS AWY FRM WRK,NO RSTR ACT None
07/13/2022 MACHINERY NO DYS AWY FRM WRK,NO RSTR ACT None
10/03/2018 POWERED HAULAGE DAYS RESTRICTED ACTIVITY ONLY 2d restricted
04/11/2018 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None
08/22/2016 SLIP OR FALL OF PERSON DAYS AWAY FROM WORK ONLY 1d lost
07/06/2015 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 23d restricted
08/24/2011 HANDLING OF MATERIALS DYS AWY FRM WRK & RESTRCTD ACT 2d lost, 7d restricted
05/31/2011 SLIP OR FALL OF PERSON NO DYS AWY FRM WRK,NO RSTR ACT None
06/17/2010 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None

Inspections

View all 44 →
Begin End Hours Inspectors
10/23/2025 10/28/2025 14.00 1
09/16/2025 09/17/2025 11.00 1
01/28/2025 01/28/2025 10.00 2
04/16/2024 04/17/2024 20.00 1
03/27/2023 03/28/2023 22.25 1
11/16/2022 11/22/2022 31.00 1
10/12/2021 10/13/2021 15.25 1
10/29/2020 10/29/2020 18.75 1
06/24/2020 06/24/2020 14.00 1
05/20/2020 05/20/2020 2.00 1

Mine Details

MSHA Mine ID4702874
Mine TypeSurface
StatusActive
CommodityStone
SIC DescriptionCrushed, Broken Limestone NEC
Employees4
Days/Week5.0
Hours/Shift8.0
Coordinates43.2797220, -90.0441670
Nearest TownPlain

Frequently Asked Questions

How many MSHA violations does Plant #45 have?

Plant #45 has 35 MSHA violations on record, of which 5 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $6K.

What type of mine is Plant #45?

Plant #45 is a Surface mine producing Stone, located in Plain, Sauk County, WI. It currently has 4 employees.

Has anyone been injured or killed at Plant #45?

According to MSHA records, Plant #45 has 17 reported accident/injury records and 0 fatalities on file.

Who operates Plant #45?

Plant #45 is operated by Milestone Materials Div/Mathy Construction Co and controlled by Mathy Construction Company. MSHA Mine ID: 4702874.