# Kentucky Avenue Mine

- **MSHA mine ID:** 1201762
- **Status:** Active
- **Type / commodity:** Underground / Crushed, Broken Limestone NEC
- **Location:** Marion, IN
- **Operator:** Martin Marietta Materials Inc
- **Controller:** Martin Marietta Materials Inc
- **Public source rows linked:** 4,091
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Martin Marietta Materials Inc (M00174) → Martin Marietta Materials Inc (L16197) → Kentucky Avenue Mine (1201762)**

Current identity source: `msha-mines`. This is a current snapshot, not a historical claim.

## Controller and operator valid-time history

- **Martin Marietta Materials Inc → Martin Marietta Aggregates:** 1980-01-01 through 2005-05-19; derived from co-tenure at mine 1201762; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Martin Marietta Materials Inc:** 2005-05-20 through current/open; derived from co-tenure at mine 1201762; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 5
- Interval anomalies: 0
- Valid-time bounds: inclusive; date granularity; null end means open-ended in the upstream history row; not independent proof of present control.
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 2 since 2021:** Accidents and injuries 44 historical accident/injury rows; 0 coded fatalities and 308 lost days across the published record.
2. **COMPLIANCE — 129 since 2021:** Violations and penalties 418 violation rows across the full record; 123 carry an S&S flag and $243,744 appears in current assessed amounts.
3. **HEALTH — 310 samples:** Occupational health samples 275 personal; 35 area. 51 personal-sample rows have a published C/E ratio above 1; 0 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
4. **PRODUCTION — 0 tons:** Quarterly production and employment 22K employee hours and 42 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 75 linked rows:** Contests, conferences and decisions 30 contested-violation rows, 31 civil-penalty docket/decision rows, and 14 conference records linked by issuance number.
6. **CONTRACTORS — 13 linked entities:** Contractors Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
7. **INSPECTIONS — 29 since 2021:** Inspections 155 inspection events and 5K published inspection hours across the historical record.

## EIA annual operating context

No matched record in the 2024 EIA coal-public workbook. This may be inapplicable for a non-coal operation.

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 57.3200 — Correction of hazardous conditions.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-B/section-57.3200
- **30 CFR 57.18002 — Examination of working places.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-Q/section-57.18002
- **30 CFR 57.9313 — Roadway maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-H/section-57.9313
- **30 CFR 47.42 — Label contents.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.42
- **30 CFR 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 57.11050 — Escapeways and refuges.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11050
- **30 CFR 57.14207 — Parking procedures for unattended equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14207
- **30 CFR 57.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100
- **30 CFR 57.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12032

## Source coverage

- **Accident, Injuries, and Illnesses:** 44 rows; 2000-01-31 through 2022-04-21; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2013-11-18 through 2013-11-18; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 35 rows; 2008-07-09 through 2026-01-07; source ID `msha-area-samples`
- **Assessed Violations:** 417 rows; 2000-03-21 through 2026-07-14; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 31 rows; 2001-03-28 through 2026-05-29; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 14 rows; 2000-05-10 through 2019-08-06; source ID `msha-conferences`
- **Contested Violations:** 30 rows; 2005-11-03 through 2025-08-20; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,993 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 519 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1980-01-01 through 2005-05-20; source ID `msha-controller-operator-history`
- **Inspections:** 155 rows; 2000-03-21 through 2026-09-29; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 48 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 108 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Metal and Nonmetal Personal Health Samples:** 275 rows; 2001-02-14 through 2026-01-07; source ID `msha-personal-health-samples`
- **Violations:** 418 rows; 2000-03-21 through 2026-09-29; source ID `msha-violations`

## Caveats

- This is public-record decision support, not legal advice or an official MSHA record.
- Missing data can indicate no event, publication delay, an unresolved identity, or inapplicability.
- Contractor production data is entity-level and is not attributed to this mine.

## Alternate representations

- HTML: `/mines/kentucky-avenue-mine-1201762`
- JSON: `/api/v1/mines/kentucky-avenue-mine-1201762`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1201762/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1201762/relationships`
- MCP resource: `mine://1201762/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`