Data / Mines / Michigan / Highland Plant
Highland Plant, Oakland County, Michigan: 18 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Highland Plant is an active construction sand and gravel surface mine in Oakland County, Michigan, operated by American Aggregates Of Michigan Inc with 16 employees on MSHA's record (mine ID 2002965). Since January 1, 2022 MSHA inspectors issued 18 citations and orders there with $1,873 in proposed penalties, and 2 accident reports were filed there, with 2 injury or illness cases.
The request: Watch Highland Plant (MSHA mine ID 2002965) in Oakland County, Michigan: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 2002965
- Status
- Active since May 14, 2015
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Oakland County, Michigan
- Nearest town
- Holly
- Operator
- American Aggregates Of Michigan Inc
- Employees
- 16
- MSHA field office
- Lansing MI Field Office
- Citations and orders since January 1, 2022
- 18
- Significant and substantial
- 0 (0.0%)
- Closure orders
- 0
- High negligence or reckless
- 1
- Proposed penalties
- $1,873
- Amount paid so far
- $1,873
- Inspections
- 13
- Inspector hours on site
- 168
- Citations per inspection
- 1.38 (all mines 2.30)
- Accident reports
- 2
- Injury and illness cases
- 2
- Fatalities
- 0
- Latest MSHA record
- October 23, 2026
- Citations issued to contractors here
- 4 ($787 proposed)
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 | 1 | 0 | $133 | 1 |
| 2023 | 9 | 0 | $1,287 | 0 |
| 2024 | 0 | 0 | $0 | 1 |
| 2025 | 2 | 0 | $302 | 0 |
| 2026 | 6 | 0 | $151 | 0 |
Standards cited most at Highland Plant
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 56.14107 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.20011 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.4104 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14103 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.16005 | Surface metal and nonmetal mines | 1 |
| 30 CFR 62.120 | Occupational noise exposure | 1 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Highland Plant
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 | 1 |
What the accident reports at Highland Plant describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handtools (nonpowered) | 1 |
| Slip or fall of person | 1 |
Equipment named in accident reports at Highland Plant
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 1 |
Other open mines in Oakland County, Michigan
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Koenig Materials, LLC | Koenig Materials, LLC | Oakland County, MI | Construction sand and gravel | 7 | 17 |
| South Flint Gravel Inc | South Flint Gravel Inc | Oakland County, MI | Construction sand and gravel | 5 | 15 |
| I-75 Aggregates | I-75 Aggregates | Oakland County, MI | Construction sand and gravel | 10 | 11 |
| Holly Sand and Gravel | Burroughs Materials Corp | Oakland County, MI | Construction sand and gravel | 21 | 8 |
| A a Grange Hall Rd Plant | American Aggregates Of Michigan Inc | Oakland County, MI | Construction sand and gravel | 1 | 8 |
| Ray Road Plant | American Aggregates Of Michigan Inc | Oakland County, MI | Construction sand and gravel | 13 | 7 |
| United Dredging Y105 | United Dredging | Oakland County, MI | Construction sand and gravel | 2 | 4 |
| Portable Finlay | Tri-City Aggregates Inc | Oakland County, MI | Construction sand and gravel | 15 | 1 |
| Portable McCloskey | Tri-City Aggregates Inc | Oakland County, MI | Construction sand and gravel | 12 | 0 |
| Groveland Sand & Gravel | Burroughs Materials Corp | Oakland County, MI | Construction sand and gravel | 0 | 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.