Data / Mines / Wisconsin / Plant #90
Plant #90, Clark 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 #90 is an intermittent construction sand and gravel surface mine in Clark County, Wisconsin, operated by River City Stone Division Of Mathy Construction Co with 6 employees on MSHA's record (mine ID 4703040). Since January 1, 2022 MSHA inspectors issued 0 citations and orders there with $0 in proposed penalties, and 3 accident reports were filed there, with 3 injury or illness cases.
The request: Watch Plant #90 (MSHA mine ID 4703040) in Clark County, Wisconsin: each new citation and each accident report. $10 of work on sign-up, no card.
SpecStream is the live web data engine for teams and agents. It reads the mine, citation, inspection and accident files that MSHA publishes, and this page is that reading. Ask for the mines of a commodity, state or operator with the operator's headquarters, website and size added from the web, and new mines, new citations and new accident reports arrive in your sheet, CRM, Slack or agent as MSHA posts them.
- MSHA mine ID
- 4703040
- Status
- Intermittent since June 30, 2026
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Clark County, Wisconsin
- Nearest town
- Merrillan, WI
- Operator
- River City Stone Division Of Mathy Construction Co
- Parent company
- Mathy Construction Company
- Employees
- 6
- MSHA field office
- Marquette MI Field Office
- Citations and orders since January 1, 2022
- 0
- Inspections
- 6
- Inspector hours on site
- 19
- Citations per inspection
- 0.00 (all mines 2.30)
- Accident reports
- 3
- Injury and illness cases
- 3
- Fatalities
- 0
- Latest MSHA record
- May 12, 2026
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2023 | 0 | 0 | $0 | 1 |
| 2025 | 0 | 0 | $0 | 1 |
| 2026 | 0 | 0 | $0 | 1 |
Injury and illness cases at Plant #90
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 1 |
| No lost time, or an occupational illness | 2 |
What the accident reports at Plant #90 describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 3 |
Other open mines in Clark County, Wisconsin
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Plant 21 | River City Stone Division Of Mathy Construction Co | Clark County, WI | Crushed, broken limestone | 2 | 6 |
| Plant 22 | River City Stone Division Of Mathy Construction Co | Clark County, WI | Crushed, broken limestone | 0 | 6 |
| Stripping/Restoration #1 | Haas Sons Inc | Clark County, WI | Construction sand and gravel | 4 | 5 |
| Pine Valley | Scott Construction Inc | Clark County, WI | Construction sand and gravel | 2 | 4 |
| Portable Crusher #4 | Haas Sons Inc | Clark County, WI | Construction sand and gravel | 7 | 3 |
| Portable Crusher #1 | Haas Sons Inc | Clark County, WI | Construction sand and gravel | 5 | 3 |
| Portable Crusher #3 | Haas Sons Inc | Clark County, WI | Construction sand and gravel | 3 | 2 |
| Portable Crusher # 2 | Haas Sons Inc | Clark County, WI | Construction sand and gravel | 3 | 1 |
| Stripping/Restoring# 2 | Haas Sons Inc | Clark County, WI | Construction sand and gravel | 2 | 1 |
| Plant 52 | River City Stone Division Of Mathy Construction Co | Clark County, WI | Crushed, broken limestone | 2 | 0 |
| Wash Plant #2 | Haas Sons Inc | Clark County, WI | Construction sand and gravel | 1 | 0 |
| Plant #89 | River City Stone Division Of Mathy Construction Co | Clark County, WI | Construction sand and gravel | 1 | 0 |
| Wash Plant #3 | Haas Sons Inc | Clark County, WI | Construction sand and gravel | 1 | 0 |
| Portable Screening | Haas Sons Inc | Clark County, WI | Construction sand and gravel | 1 | 0 |
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.