Key Takeaway

Plant #20 is a intermittent surface mine producing Stone, located in Dubuque, Dubuque County, IA. It has 23 violations on record (0 S&S) and $2K in proposed penalties. Operated by River City Stone Division Of Mathy Construction Co.

Plant #20

Intermittent Surface Stone

Operator: River City Stone Division Of Mathy Construction Co

Controller: Mathy Construction Company

Location: Dubuque, Dubuque County, IA

Employees: 2

23
Violations
0
S&S Violations
3
Accidents
$2K
Penalties

Recent Violations

View all 23 →
Date Section S&S Negligence Penalty
07/17/2025 56.12004 Non-S&S ModNegligence $151
06/28/2023 56.12004 Non-S&S ModNegligence $143
06/28/2023 56.12004 Non-S&S ModNegligence $143
03/16/2022 56.12028 Non-S&S ModNegligence $133
05/15/2019 56.14100(c) Non-S&S LowNegligence $121
10/25/2017 56.12006 Non-S&S ModNegligence $116
10/25/2017 56.12004 Non-S&S ModNegligence $116
10/25/2017 56.12028 Non-S&S ModNegligence $116
03/31/2015 56.14103(c)(1) Non-S&S ModNegligence $100
05/21/2013 56.14112(b) Non-S&S ModNegligence $100
05/21/2013 56.12008 Non-S&S LowNegligence $100
10/19/2011 56.12004 Non-S&S ModNegligence $100
05/17/2011 56.12032 Non-S&S ModNegligence $100
05/17/2011 56.14112(b) Non-S&S ModNegligence $100
05/17/2011 56.14107(a) Non-S&S ModNegligence $100
05/17/2011 56.11003 Non-S&S LowNegligence $100
05/17/2011 56.14100(c) Non-S&S LowNegligence $100
05/17/2011 46.9(b) Non-S&S HighNegligence $100
08/26/2009 56.12006 Non-S&S ModNegligence $100
08/26/2009 56.12006 Non-S&S ModNegligence $100

Accidents & Injuries

View all 3 →
Date Classification Injury Days Lost
10/24/2017 HANDLING OF MATERIALS DAYS AWAY FROM WORK ONLY 6d lost
07/03/2006 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None
10/22/2001 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None

Inspections

View all 31 →
Begin End Hours Inspectors
07/17/2025 07/17/2025 6.50 1
12/01/2023 12/01/2023 5.25 1
06/28/2023 06/29/2023 11.25 1
06/22/2022 06/22/2022 6.25 1
03/29/2022 03/30/2022 2.75 1
03/16/2022 03/16/2022 0.75 1
07/06/2021 07/07/2021 14.75 1
08/03/2020 08/04/2020 12.75 1
05/14/2019 05/15/2019 7.75 1
10/25/2017 10/25/2017 16.75 1

Mine Details

MSHA Mine ID1302134
Mine TypeSurface
StatusIntermittent
CommodityStone
SIC DescriptionCrushed, Broken Limestone NEC
Employees2
Days/Week5.0
Hours/Shift10.0
Coordinates42.4805560, -90.7344440
Nearest TownDubuque

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Frequently Asked Questions

How many MSHA violations does Plant #20 have?

Plant #20 has 23 MSHA violations on record, of which 0 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $2K.

What type of mine is Plant #20?

Plant #20 is a Surface mine producing Stone, located in Dubuque, Dubuque County, IA. It currently has 2 employees.

Has anyone been injured or killed at Plant #20?

According to MSHA records, Plant #20 has 3 reported accident/injury records and 0 fatalities on file.

Who operates Plant #20?

Plant #20 is operated by River City Stone Division Of Mathy Construction Co and controlled by Mathy Construction Company. MSHA Mine ID: 1302134.