Data / Mines / Indiana / US Aggregates-Flat Rock Plant
US Aggregates-Flat Rock Plant: 39 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
US Aggregates-Flat Rock Plant is an active crushed, broken limestone surface mine in Shelby County, Indiana, operated by US Aggregates LLC with 10 employees on MSHA's record (mine ID 1200016). Since January 1, 2022 MSHA inspectors issued 39 citations and orders there with $125,718 in proposed penalties, and 2 accident reports were filed there, with 2 injury or illness cases, 1 of them fatal.
The request: Watch US Aggregates-Flat Rock Plant (MSHA mine ID 1200016) in Shelby County, Indiana: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 1200016
- Status
- Active since January 14, 2003
- Main commodity
- Crushed, broken limestone
- Mine type
- Surface
- County
- Shelby County, Indiana
- Nearest town
- Flat Rock, in
- Operator
- US Aggregates LLC
- Parent company
- The Heritage Group
- Employees
- 10
- MSHA field office
- Mooresville in Field Office
- Citations and orders since January 1, 2022
- 39
- Significant and substantial
- 9 (23.1%)
- Closure orders
- 3
- High negligence or reckless
- 4
- Proposed penalties
- $125,718
- Amount paid so far
- $5,313
- Inspections
- 14
- Inspector hours on site
- 188
- Citations per inspection
- 2.79 (all mines 2.30)
- Accident reports
- 2
- Injury and illness cases
- 2
- Fatalities
- 1
- Latest MSHA record
- September 17, 2026
- Citations issued to contractors here
- 7 ($12,067 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 | 5 | 0 | $665 | 0 |
| 2023 | 9 | 3 | $1,517 | 0 |
| 2024 | 21 | 6 | $122,932 | 2 |
| 2025 | 2 | 0 | $302 | 0 |
| 2026 | 2 | 0 | $302 | 0 |
Standards cited most at US Aggregates-Flat Rock 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 56.20003 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.15001 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 1 |
| 30 CFR 46.9 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 56.10002 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.20008 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14109 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at US Aggregates-Flat Rock Plant
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Fatality | 1 |
| No lost time, or an occupational illness | 1 |
What the accident reports at US Aggregates-Flat Rock Plant describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 1 |
| Electrical | 1 |
Equipment named in accident reports at US Aggregates-Flat Rock Plant
| Equipment | Reports |
|---|---|
| Forklift | 1 |
| Crane | 1 |
Other open mines in Shelby County, Indiana
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| 750 North Shelbyville in | Shelby Gravel Inc | Shelby County, IN | Construction sand and gravel | 5 | 97 |
| St Paul Stone Company | New Point Stone Company Inc | Shelby County, IN | Crushed, broken limestone | 8 | 77 |
| Dinn Quarry | Ward Stone, LLC | Shelby County, IN | Crushed, broken limestone | 20 | 52 |
| Caldwell PT & ML | CGS Services Inc | Shelby County, IN | Construction sand and gravel | 4 | 6 |
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.