Data / Mines / Joy Engineering
Joy Engineering: 10 open mines, 25 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Joy Engineering (MSHA operator ID 0050173) operates 10 open mines with 41 employees in California, Nevada, mostly construction sand and gravel. Since January 1, 2022 MSHA inspectors issued it 25 citations and orders with $3,674 in proposed penalties, and it reported 4 injury or illness cases. Data from MSHA, November 6, 2026.
The request: Watch Joy Engineering (MSHA operator ID 0050173): each new citation, each accident report and each new mine. $10 of work on sign-up, no card.
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- MSHA operator ID
- 0050173
- Open mines
- 10
- Employees at open mines
- 41
- States
- California, Nevada
- Citations and orders since January 1, 2022
- 25
- Significant and substantial
- 3 (12.0%)
- Closure orders
- 1
- High negligence or reckless
- 0
- Proposed penalties
- $3,674
- Amount paid so far
- $3,674
- Inspections
- 75
- Inspector hours on site
- 202
- Citations per inspection
- 0.33 (all mines 2.30)
- Accident reports
- 4
- Injury and illness cases
- 4
- Fatalities
- 0
- Latest MSHA record
- October 23, 2026
Open mines of Joy Engineering
Ranked by citations since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Blasted Rock Quarry | Joy Engineering | Plumas County, CA | Crushed, broken stone | 5 | 13 |
| MXT 1300 Cone Pid13mxtkc0k91141 | Joy Engineering | Washoe County, NV | Construction sand and gravel | 5 | 3 |
| Juniper Ridge Quarry | Joy Engineering | Lyon County, NV | Construction sand and gravel | 5 | 3 |
| Powerscreen Jaw Pidpt400home28251 | Joy Engineering | Plumas County, CA | Construction sand and gravel | 5 | 1 |
| Sparrock Pit | Joy Engineering | Plumas County, CA | Dimension stone | 4 | 1 |
| River Canyon III | Joy Engineering | Storey County, NV | Crushed, broken stone | 4 | 1 |
| Powerscreen 1800 Warrior Pid00123pdgf299 | Joy Engineering | Plumas County, CA | Construction sand and gravel | 1 | 1 |
| Powerscreen 1300 Max Pid13mxtcomc55064 | Joy Engineering | Plumas County, CA | Construction sand and gravel | 5 | 0 |
| Mustang | Joy Engineering | Storey County, NV | Construction sand and gravel | 4 | 0 |
| Sloat Quarry | Joy Engineering | Plumas County, CA | Construction sand and gravel | 3 | 0 |
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 |
|---|---|---|---|---|
| 2022 | 4 | 1 | $532 | 1 |
| 2023 | 12 | 2 | $1,783 | 0 |
| 2024 | 0 | 0 | $0 | 1 |
| 2025 | 2 | 0 | $302 | 1 |
| 2026 | 7 | 0 | $1,057 | 1 |
Standards cited most at Joy Engineering
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 46.9 | Training at sand, gravel and surface stone mines | 3 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14110 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.1000 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.23004 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14103 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11027 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 1 |
| 30 CFR 46.7 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 56.18010 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.23003 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.10000 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Joy Engineering
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Permanent disability | 1 |
| Days away from work or restricted activity | 2 |
| No lost time, or an occupational illness | 1 |
What the accident reports at Joy Engineering describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 2 |
| Machinery | 1 |
| Handtools (nonpowered) | 1 |
Equipment named in accident reports at Joy Engineering
| Equipment | Reports |
|---|---|
| Front-end loader | 1 |
| Machine | 1 |
| Ore haulage trucks - on highway trucks | 1 |
| Hand tools (not powered) | 1 |
Commodities
| Main commodity | Open mines |
|---|---|
| Construction sand and gravel | 7 |
| Crushed, broken stone | 2 |
| Dimension stone | 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.