Data / Mines / Missouri / Buildex
Buildex, Platte County, Missouri: 38 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Buildex is an active common shale surface mine in Platte County, Missouri, operated by Martin Marietta Materials, Inc. with 26 employees on MSHA's record (mine ID 2300319). Since January 1, 2022 MSHA inspectors issued 38 citations and orders there with $15,249 in proposed penalties, and 6 accident reports were filed there, with 5 injury or illness cases.
The request: Watch Buildex (MSHA mine ID 2300319) in Platte County, Missouri: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 2300319
- Status
- Active since June 30, 1981
- Main commodity
- Common shale
- Mine type
- Surface
- County
- Platte County, Missouri
- Nearest town
- Dearborn
- Operator
- Martin Marietta Materials, Inc.
- Parent company
- Martin Marietta Materials Inc
- Employees
- 26
- MSHA field office
- Rolla MO Field Office
- Citations and orders since January 1, 2022
- 38
- Significant and substantial
- 5 (13.2%)
- Closure orders
- 1
- High negligence or reckless
- 1
- Proposed penalties
- $15,249
- Amount paid so far
- $14,594
- Inspections
- 20
- Inspector hours on site
- 154
- Citations per inspection
- 1.90 (all mines 2.30)
- Accident reports
- 6
- Injury and illness cases
- 5
- Fatalities
- 0
- Latest MSHA record
- June 10, 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 | 6 | 1 | $1,043 | 0 |
| 2023 | 9 | 3 | $7,079 | 0 |
| 2024 | 5 | 1 | $4,149 | 2 |
| 2025 | 9 | 0 | $1,417 | 1 |
| 2026 | 9 | 0 | $1,561 | 2 |
Standards cited most at Buildex
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 | 4 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 2 |
| 30 CFR 47.44 | Hazard communication | 2 |
| 30 CFR 56.12019 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4200 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14109 | Surface metal and nonmetal mines | 1 |
| 30 CFR 46.7 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 56.11003 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11012 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14110 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11027 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Buildex
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 | 4 |
What the accident reports at Buildex describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Powered haulage | 2 |
| Slip or fall of person | 1 |
| Fire | 1 |
| Striking or bumping | 1 |
| Handling of materials | 1 |
Equipment named in accident reports at Buildex
| Equipment | Reports |
|---|---|
| Conveyor | 2 |
| Man lift | 1 |
Other open mines in Platte County, Missouri
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Stamper Underground | Hunt Martin Materials L.L.C. | Platte County, MO | Crushed, broken limestone | 1 | 23 |
| Riverside Plant #11 | Holliday Sand & Gravel Company, Inc. | Platte County, MO | Construction sand and gravel | 9 | 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.