Data / Mines / Missouri / Irock Port #2
Irock Port #2, Lincoln County, Missouri: 16 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Irock Port #2 is an active crushed, broken limestone surface mine in Lincoln County, Missouri, operated by Magruder Limestone Co Inc with 8 employees on MSHA's record (mine ID 2302475). Since January 1, 2022 MSHA inspectors issued 16 citations and orders there with $2,300 in proposed penalties, and 4 accident reports were filed there, with 4 injury or illness cases.
The request: Watch Irock Port #2 (MSHA mine ID 2302475) in Lincoln County, Missouri: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 2302475
- Status
- Active since November 2, 2015
- Main commodity
- Crushed, broken limestone
- Mine type
- Surface
- County
- Lincoln County, Missouri
- Nearest town
- Ashley
- Operator
- Magruder Limestone Co Inc
- Employees
- 8
- MSHA field office
- Rolla MO Field Office
- Citations and orders since January 1, 2022
- 16
- Significant and substantial
- 0 (0.0%)
- Closure orders
- 0
- High negligence or reckless
- 1
- Proposed penalties
- $2,300
- Amount paid so far
- $1,998
- Inspections
- 15
- Inspector hours on site
- 67
- Citations per inspection
- 1.07 (all mines 2.30)
- Accident reports
- 4
- Injury and illness cases
- 4
- Fatalities
- 0
- Latest MSHA record
- September 18, 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 | 4 | 0 | $532 | 2 |
| 2023 | 6 | 0 | $866 | 0 |
| 2024 | 1 | 0 | $147 | 1 |
| 2025 | 3 | 0 | $453 | 1 |
| 2026 | 2 | 0 | $302 | 0 |
Standards cited most at Irock Port #2
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 56.14100 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.4200 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.13001 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11003 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.13015 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14103 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4230 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4603 | Surface metal and nonmetal mines | 1 |
| 30 CFR 41.12 | Notice of legal identity | 1 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 1 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 1 |
| 30 CFR 56.12019 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.9301 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Irock Port #2
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 2 |
| No lost time, or an occupational illness | 2 |
What the accident reports at Irock Port #2 describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 1 |
| Handling of materials | 1 |
| Powered haulage | 1 |
| Disorders (repeated trauma) | 1 |
Equipment named in accident reports at Irock Port #2
| Equipment | Reports |
|---|---|
| Front-end loader | 1 |
Other open mines in Lincoln County, Missouri
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Magruder Limestone-Troy Quarry | Magruder Limestone Co Inc | Lincoln County, MO | Crushed, broken limestone | 15 | 50 |
| Troy West Quarry | Martin Marietta Materials, Inc. | Lincoln County, MO | Crushed, broken limestone | 5 | 41 |
| Tory East Quarry | Martin Marietta Materials, Inc. | Lincoln County, MO | Crushed, broken limestone | 8 | 38 |
| Old Monroe Materials, LLC | Old Monroe Materials, LLC | Lincoln County, MO | Construction sand and gravel | 3 | 29 |
| BMC Sand, Old Monroe | BMC Sand LLC | Lincoln County, MO | Sand, industrial | 4 | 24 |
| Foley Quarry | Magruder Limestone Co Inc | Lincoln County, MO | Crushed, broken limestone | 4 | 22 |
| Kimaterials Incorporated | Kimaterials | Lincoln County, MO | Construction sand and gravel | 7 | 17 |
| Moscow Mills Plant CS57 | Central Stone Company | Lincoln County, MO | Crushed, broken limestone | 5 | 9 |
| Irock #3 | Magruder Limestone Co Inc | Lincoln County, MO | Crushed, broken limestone | 4 | 6 |
| Irock #4 | Magruder Limestone Co Inc | Lincoln County, MO | Crushed, broken limestone | 1 | 4 |
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.