# Muddy Bridge Branch No. 1 Mine

- **MSHA mine ID:** 4608701
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Logan, WV
- **Operator:** Pioneer Mining, Inc.
- **Controller:** Alpha Natural Resources Holdings, Inc
- **Public source rows linked:** 854
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Alpha Natural Resources Holdings, Inc (0127923) → Pioneer Mining, Inc. (P23904) → Muddy Bridge Branch No. 1 Mine (4608701)**

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

## Controller and operator valid-time history

- **Rag Aktiengesellschaft → Pioneer Mining Inc:** 1998-03-01 through 2000-08-20; derived from co-tenure at mine 4608701; source `msha-controller-operator-history`.
- **Dennis G  Cook → P I T A Mining Inc:** 2000-08-21 through 2002-01-02; derived from co-tenure at mine 4608701; source `msha-controller-operator-history`.
- **Rag Aktiengesellschaft → Pioneer Mining, Inc.:** 2002-01-03 through 2004-07-29; derived from co-tenure at mine 4608701; source `msha-controller-operator-history`.
- **Foundation Coal Corporation → Pioneer Mining Inc:** 2004-07-30 through 2000-08-20; derived from co-tenure at mine 4608701; source `msha-controller-operator-history`.
- **Foundation Coal Corporation → Pioneer Mining, Inc.:** 2004-07-30 through 2009-07-30; derived from co-tenure at mine 4608701; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → Pioneer Mining Inc:** 2009-07-31 through 2000-08-20; derived from co-tenure at mine 4608701; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → Pioneer Mining, Inc.:** 2009-07-31 through 2016-07-25; derived from co-tenure at mine 4608701; source `msha-controller-operator-history`.
- **Alpha Natural Resources Holdings, Inc → Pioneer Mining Inc:** 2016-07-26 through 2000-08-20; derived from co-tenure at mine 4608701; source `msha-controller-operator-history`.
- **Alpha Natural Resources Holdings, Inc → Pioneer Mining, Inc.:** 2016-07-26 through current/open; derived from co-tenure at mine 4608701; source `msha-controller-operator-history`.

- History rows: 9
- Typed edges: 17
- Interval anomalies: 3
- 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 — 0 since 2021:** Accidents and injuries 11 historical accident/injury rows; 0 coded fatalities and 262 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 189 violation rows across the full record; 66 carry an S&S flag and $17,547 appears in current assessed amounts.
3. **HEALTH — 105 samples:** Occupational health samples 96 coal dust; 9 coal quartz. 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 0 employee hours and 0 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 0 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 0 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 — 0 since 2021:** Inspections 36 inspection events and 892 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 75.372 — Mine ventilation map.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.372
- **30 CFR 77.207 — Illumination.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.207
- **30 CFR 77.1701 — Emergency communications; requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-R/section-77.1701
- **30 CFR 75.400 — Accumulation of combustible materials.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400
- **30 CFR 75.1725 — Machinery and equipment; operation and maintenance.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1725
- **30 CFR 75.1100-3 — Condition and examination of firefighting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1100-3
- **30 CFR 75.517 — Power wires and cables; insulation and protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.517
- **30 CFR 75.606 — Protection of trailing cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-G/section-75.606
- **30 CFR 75.807 — Installation of high-voltage transmission cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-I/section-75.807
- **30 CFR 75.1722 — Mechanical equipment guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1722

## Source coverage

- **Accident, Injuries, and Illnesses:** 11 rows; 2000-10-16 through 2002-08-08; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2002-09-03 through 2002-09-03; source ID `msha-addresses`
- **Assessed Violations:** 189 rows; 2000-10-03 through 2002-08-26; source ID `msha-assessed-violations`
- **Coal Dust Samples:** 96 rows; 2000-10-05 through 2001-12-03; source ID `msha-coal-dust-samples`
- **Contractor Employment and Production — Quarterly:** 246 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 46 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 9 rows; 1998-03-01 through 2002-01-03; source ID `msha-controller-operator-history`
- **Inspections:** 36 rows; 2000-08-21 through 2002-08-26; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 17 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 4 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Quartz Samples — Coal:** 9 rows; 2000-10-24 through 2001-11-20; source ID `msha-quartz-samples`
- **Violations:** 189 rows; 2000-10-03 through 2002-08-26; 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/muddy-bridge-branch-no-1-mine-4608701`
- JSON: `/api/v1/mines/muddy-bridge-branch-no-1-mine-4608701`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4608701/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4608701/relationships`
- MCP resource: `mine://4608701/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`