Data / Mines / Wisconsin / Plant #88
Plant #88, Dunn County, Wisconsin: 0 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Plant #88 is an intermittent construction sand and gravel surface mine in Dunn County, Wisconsin, operated by River City Stone Division Of Mathy Construction Co with 2 employees on MSHA's record (mine ID 4703080). Since January 1, 2022 MSHA inspectors issued 0 citations and orders there with $0 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Plant #88 (MSHA mine ID 4703080) in Dunn County, Wisconsin: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 4703080
- Status
- Intermittent since November 12, 2012
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Dunn County, Wisconsin
- Nearest town
- Onalaska
- Operator
- River City Stone Division Of Mathy Construction Co
- Parent company
- Mathy Construction Company
- Employees
- 2
- MSHA field office
- Duluth MN Field Office
- Citations and orders since January 1, 2022
- 0
- Inspections
- 5
- Inspector hours on site
- 18
- Citations per inspection
- 0.00 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- April 23, 2026
Other open mines in Dunn County, Wisconsin
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Menomonie Plant | Covia Solutions LLC | Dunn County, WI | Sand, industrial | 9 | 9 |
| Dunn County Highway Pits | Dunn County Highway Department | Dunn County, WI | Construction sand and gravel | 3 | 3 |
| Plant 80 | River City Stone Division Of Mathy Construction Co | Dunn County, WI | Sand, common | 4 | 1 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.