Data / Mines / Missouri / Barnhart Quarry
Barnhart Quarry: 43 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Barnhart Quarry is an active crushed, broken limestone surface mine in Jefferson County, Missouri, operated by Martin Marietta Materials, Inc. with 32 employees on MSHA's record (mine ID 2302469). Since January 1, 2022 MSHA inspectors issued 43 citations and orders there with $10,946 in proposed penalties, and 4 accident reports were filed there, with 4 injury or illness cases.
The request: Watch Barnhart Quarry (MSHA mine ID 2302469) in Jefferson County, Missouri: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 2302469
- Status
- Active since October 10, 2019
- Main commodity
- Crushed, broken limestone
- Mine type
- Surface
- County
- Jefferson County, Missouri
- Nearest town
- Barnhart
- Operator
- Martin Marietta Materials, Inc.
- Parent company
- Martin Marietta Materials Inc
- Employees
- 32
- MSHA field office
- Litchfield IL Field Office
- Citations and orders since January 1, 2022
- 43
- Significant and substantial
- 4 (9.3%)
- Closure orders
- 0
- High negligence or reckless
- 3
- Proposed penalties
- $10,946
- Amount paid so far
- $10,946
- Inspections
- 13
- Inspector hours on site
- 146
- Citations per inspection
- 3.31 (all mines 2.30)
- Accident reports
- 4
- Injury and illness cases
- 4
- Fatalities
- 0
- Latest MSHA record
- July 2, 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 |
|---|---|---|---|---|
| 2022 | 19 | 2 | $6,006 | 1 |
| 2023 | 3 | 0 | $648 | 0 |
| 2024 | 12 | 1 | $1,922 | 2 |
| 2025 | 4 | 0 | $720 | 0 |
| 2026 | 5 | 1 | $1,650 | 1 |
Standards cited most at Barnhart Quarry
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 56.12004 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.12030 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.15005 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.15001 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 1 |
| 30 CFR 50.20-7 | Reporting of accidents, injuries and illnesses | 1 |
| 30 CFR 56.3200 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.16005 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4402 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Barnhart Quarry
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 Barnhart Quarry describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 2 |
| Machinery | 1 |
| Slip or fall of person | 1 |
Equipment named in accident reports at Barnhart Quarry
| Equipment | Reports |
|---|---|
| Hand tools (powered) | 1 |
Other open mines in Jefferson County, Missouri
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Selma Plant Quarry & Mill | River Cement Company DBA Buzzi Unicem USA | Jefferson County, MO | Cement | 150 | 324 |
| Antire Quarry (CS-72) | Central Stone Company | Jefferson County, MO | Crushed, broken limestone | 25 | 27 |
| BMC Sand Eureka Plant | BMC Sand LLC | Jefferson County, MO | Construction sand and gravel | 4 | 19 |
| Cedar Springs Quarry | Arch Johnston Paving & Quarry Company Inc | Jefferson County, MO | Crushed, broken limestone | 17 | 18 |
| Pevely Plant | Covia Solutions LLC | Jefferson County, MO | Sand, industrial | 10 | 16 |
| Antonia (CS56) | Central Stone Company | Jefferson County, MO | Crushed, broken limestone | 10 | 10 |
| Trautman Quarry (CS-74) | Central Stone Company | Jefferson County, MO | Crushed, broken limestone | 8 | 10 |
| House Springs Quarry (CS-73) | Central Stone Company | Jefferson County, MO | Crushed, broken limestone | 5 | 10 |
| Festus Underground | Fred Weber, Inc. | Jefferson County, MO | Sand, industrial | 1 | 7 |
| Fast Pack 2 Portable 2 | Martin Marietta Materials, Inc. | Jefferson County, MO | Crushed, broken limestone | 15 | 6 |
| Plant 5 / Smreker Supply | H Sand & Gravel | Jefferson County, MO | Sand, industrial | 4 | 4 |
| H Sand & Gravel | H Sand & Gravel | Jefferson County, MO | Construction sand and gravel | 9 | 3 |
| South Portable Plant | Martin Marietta Materials, Inc. | Jefferson County, MO | Crushed, broken limestone | 5 | 2 |
| Morse Mill Quarry #60 | Central Stone Company | Jefferson County, MO | Crushed, broken limestone | 5 | 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.