# Cox Bend

- **MSHA mine ID:** 4102977
- **Status:** Intermittent
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Somervell, TX
- **Operator:** Vulcan Construction Materials, LLC
- **Controller:** Vulcan Materials Company
- **Public source rows linked:** 1,516
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Vulcan Materials Company (0071891) → Vulcan Construction Materials, LLC (L16168) → Cox Bend (4102977)**

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

## Controller and operator valid-time history

- **Alton B  Hamm → Rainbow Aggregate Company Inc:** 1980-01-01 through 1988-05-01; derived from co-tenure at mine 4102977; source `msha-controller-operator-history`.
- **Atlas Concrete Inc → Ingram Enterprises Lp:** 1988-05-02 through 2008-02-29; derived from co-tenure at mine 4102977; source `msha-controller-operator-history`.
- **US Concrete → Ingram Concrete LLC:** 2008-03-01 through 2021-10-31; derived from co-tenure at mine 4102977; source `msha-controller-operator-history`.
- **Vulcan Materials Company → Vulcan Construction Materials, LLC:** 2021-11-01 through current/open; derived from co-tenure at mine 4102977; source `msha-controller-operator-history`.
- **Legacy Vulcan Corp (Form:Vulcan Materials Co) → Vulcan Construction Materials, LLC:** 2021-11-01 through 2007-11-15; derived from co-tenure at mine 4102977; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 14
- Interval anomalies: 1
- 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: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 1 since 2021:** Accidents and injuries 15 historical accident/injury rows; 0 coded fatalities and 125 lost days across the published record.
2. **COMPLIANCE — 11 since 2021:** Violations and penalties 85 violation rows across the full record; 14 carry an S&S flag and $9,904 appears in current assessed amounts.
3. **HEALTH — 37 samples:** Occupational health samples 37 personal. 0 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 500 employee hours and 2 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 9 linked rows:** Contests, conferences and decisions 3 contested-violation rows, 3 civil-penalty docket/decision rows, and 3 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 — 13 since 2021:** Inspections 71 inspection events and 1K 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 56.12030 — Correction of dangerous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12030
- **30 CFR 56.14132 — Horns and backup alarms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **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 56.14100 — Safety defects; examination, correction and records.** (5 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.14207 — Parking procedures for unattended equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **30 CFR 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **30 CFR 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20

## Source coverage

- **Accident, Injuries, and Illnesses:** 15 rows; 2000-04-13 through 2023-11-07; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-03-21 through 2025-03-21; source ID `msha-addresses`
- **Assessed Violations:** 84 rows; 2000-01-19 through 2024-01-03; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 3 rows; 2010-08-12 through 2019-10-10; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 3 rows; 2000-01-27 through 2020-01-17; source ID `msha-conferences`
- **Contested Violations:** 3 rows; 2009-08-27 through 2019-04-25; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 747 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 197 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1980-01-01 through 2021-11-01; source ID `msha-controller-operator-history`
- **Inspections:** 71 rows; 2000-01-19 through 2026-09-15; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 211 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 53 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:** 37 rows; 2001-09-19 through 2019-10-23; source ID `msha-personal-health-samples`
- **Violations:** 85 rows; 2000-01-19 through 2026-09-15; 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/cox-bend-4102977`
- JSON: `/api/v1/mines/cox-bend-4102977`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4102977/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4102977/relationships`
- MCP resource: `mine://4102977/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`