Data / Mines / Indiana / Marion County
Mines in Marion County, Indiana: 10 open mines
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
MSHA lists 10 open mines in Marion County, Indiana, run by 5 operators and employing 98 people. Since January 1, 2022 its inspectors issued 192 citations and orders there with $273,149 in proposed penalties, and operators reported 4 injury or illness cases. The operators with the most open mines are Denney Excavating, Inc.; Martin Marietta Materials, Inc.; Heidelberg Materials Midwest Agg, Inc.. Data from MSHA, November 6, 2026.
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- Open mines
- 10
- Operators
- 5
- Employees
- 98
- Active
- 5
- New Mine
- 5
- Mines run by individuals, counted and not listed
- 1
- Citations and orders since January 1, 2022
- 192
- Significant and substantial
- 72 (37.5%)
- Closure orders
- 0
- High negligence or reckless
- 7
- Proposed penalties
- $273,149
- Amount paid so far
- $257,126
- Inspections
- 64
- Inspector hours on site
- 1,005
- Citations per inspection
- 3.00 (all mines 2.30)
- Accident reports
- 4
- Injury and illness cases
- 4
- Fatalities
- 0
- Latest MSHA record
- October 1, 2026
Operators with the most open mines in Marion County, Indiana
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Denney Excavating, Inc. | 4 | 0 | 0 | $0 | 0 |
| Martin Marietta Materials, Inc. | 2 | 47 | 102 | $177,289 | 2 |
| Heidelberg Materials Midwest Agg, Inc. | 1 | 43 | 62 | $89,719 | 2 |
| Brookfield Sand & Gravel Inc | 1 | 4 | 21 | $3,939 | 0 |
| Riverside Aggregates & Materials, Inc. | 1 | 4 | 7 | $2,202 | 0 |
Operators with the most citations in Marion County, Indiana
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Martin Marietta Materials, Inc. | 2 | 47 | 102 | $177,289 | 2 |
| Heidelberg Materials Midwest Agg, Inc. | 1 | 43 | 62 | $89,719 | 2 |
| Brookfield Sand & Gravel Inc | 1 | 4 | 21 | $3,939 | 0 |
| Riverside Aggregates & Materials, Inc. | 1 | 4 | 7 | $2,202 | 0 |
| Denney Excavating, Inc. | 4 | 0 | 0 | $0 | 0 |
Mines with the most citations
Open mines, ranked by citations and orders since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Kentucky Avenue Mine | Martin Marietta Materials, Inc. | Marion County, IN | Crushed, broken limestone | 40 | 92 |
| Harding Street Quarry-Surface | Heidelberg Materials Midwest Agg, Inc. | Marion County, IN | Crushed, broken limestone | 43 | 62 |
| Marlin Rd Mine | Brookfield Sand & Gravel Inc | Marion County, IN | Construction sand and gravel | 4 | 21 |
| Belmont Sand & Gravel | Martin Marietta Materials, Inc. | Marion County, IN | Construction sand and gravel | 7 | 10 |
| Riverside Aggregates & Materials, Inc. | Riverside Aggregates & Materials, Inc. | Marion County, IN | Sand, industrial | 4 | 7 |
| #534 + Rental Screen | Denney Excavating, Inc. | Marion County, IN | Not stated | 0 | 0 |
| #522 + Rental Screen | Denney Excavating, Inc. | Marion County, IN | Not stated | 0 | 0 |
| (2025) 550 Trakpactor + Rental Screen | Denney Excavating, Inc. | Marion County, IN | Not stated | 0 | 0 |
| Chieftain 2200 #537 | Denney Excavating, Inc. | Marion County, IN | Not stated | 0 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Crushed, broken limestone | 2 | 20% |
| Construction sand and gravel | 2 | 20% |
| Sand, industrial | 1 | 10% |
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 | 38 | 27 | $35,509 | 2 |
| 2023 | 57 | 14 | $46,427 | 2 |
| 2024 | 59 | 19 | $167,325 | 0 |
| 2025 | 22 | 8 | $20,657 | 0 |
| 2026 | 16 | 4 | $3,231 | 0 |
Standards cited most at mines in Marion County, Indiana
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 | 19 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 13 |
| 30 CFR 57.20003 | Underground metal and nonmetal mines | 12 |
| 30 CFR 57.18002 | Underground metal and nonmetal mines | 12 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 11 |
| 30 CFR 57.3200 | Underground metal and nonmetal mines | 10 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 7 |
| 30 CFR 57.11051 | Underground metal and nonmetal mines | 6 |
| 30 CFR 57.14107 | Underground metal and nonmetal mines | 6 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 5 |
| 30 CFR 57.14100 | Underground metal and nonmetal mines | 5 |
| 30 CFR 56.11002 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 3 |
| 30 CFR 57.12028 | Underground metal and nonmetal mines | 3 |
Injury and illness cases at mines in Marion County, Indiana
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 3 |
| No lost time, or an occupational illness | 1 |
What the accident reports at mines in Marion County, Indiana describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 2 |
| Handling of materials | 1 |
| Powered haulage | 1 |
Equipment named in accident reports at mines in Marion County, Indiana
| Equipment | Reports |
|---|---|
| Trucks | 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.