# RiverBend Materials Windsor

- **MSHA mine ID:** 3503425
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Stone NEC
- **Location:** Marion, OR
- **Operator:** RiverBend Materials
- **Controller:** CRH PLC
- **Public source rows linked:** 844
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**CRH PLC (M06183) → RiverBend Materials (L00029) → RiverBend Materials Windsor (3503425)**

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

## Controller and operator valid-time history

- **James A  Monaghan Et Al → Windsor Rock Products:** 1996-02-01 through 2019-03-01; derived from co-tenure at mine 3503425; source `msha-controller-operator-history`.
- **CRH PLC → Windsor Rock Products:** 2019-03-02 through 2019-04-14; derived from co-tenure at mine 3503425; source `msha-controller-operator-history`.
- **CRH PLC → RiverBend Materials:** 2019-04-15 through current/open; derived from co-tenure at mine 3503425; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 8
- 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: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 13 since 2021:** Accidents and injuries 41 historical accident/injury rows; 1 coded fatalities and 163 lost days across the published record.
2. **COMPLIANCE — 16 since 2021:** Violations and penalties 129 violation rows across the full record; 23 carry an S&S flag and $41,998 appears in current assessed amounts.
3. **HEALTH — 18 samples:** Occupational health samples 18 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 15K employee hours and 34 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 4 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 4 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 — 16 since 2021:** Inspections 78 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 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **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 56.14112 — Construction and maintenance of guards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.20003 — Housekeeping.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **30 CFR 56.14200 — Warnings prior to starting or moving equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14200
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30

## Source coverage

- **Accident, Injuries, and Illnesses:** 41 rows; 2000-06-30 through 2025-07-02; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1996-02-02 through 1996-02-02; source ID `msha-addresses`
- **Assessed Violations:** 128 rows; 2000-05-09 through 2025-10-21; source ID `msha-assessed-violations`
- **Conferences:** 4 rows; 2000-10-31 through 2011-02-04; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 138 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 39 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 1996-02-01 through 2019-04-15; source ID `msha-controller-operator-history`
- **Inspections:** 78 rows; 2000-05-08 through 2026-09-29; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 210 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 54 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:** 18 rows; 2002-03-05 through 2024-11-14; source ID `msha-personal-health-samples`
- **Violations:** 129 rows; 2000-05-09 through 2026-09-09; 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/riverbend-materials-windsor-3503425`
- JSON: `/api/v1/mines/riverbend-materials-windsor-3503425`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3503425/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3503425/relationships`
- MCP resource: `mine://3503425/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`