# Relationship history for MSHA mine 0302096

Current hierarchy: **Shannon R Beard; Bruce W Beard → Imagine Construction LLC → Gravel Ridge Quarry**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Imagine Construction LLC → Gravel Ridge Quarry; 2025-02-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Shannon R Beard et al → Gravel Ridge Quarry; 2025-02-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shannon R Beard et al → Imagine Construction LLC; 2025-02-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bruce W Beard et al → Imagine Construction LLC; 2025-02-02 to current/open; source msha-controller-operator-history