# Relationship history for MSHA mine 1600980

Current hierarchy: **Rodosta Joseph → Rodosta Brothers Contractors Inc → Rodosta Dirt Pit**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Tiger Bend Dirt & Sand Inc → Rodosta Dirt Pit; 1980-03-01 to 1984-08-15; source msha-controller-operator-history
- **controller_controls_mine:** Deville Wade → Rodosta Dirt Pit; 1980-03-01 to 1984-08-15; source msha-controller-operator-history
- **controller_controls_operator:** Deville Wade → Tiger Bend Dirt & Sand Inc; 1980-03-01 to 1984-08-15; source msha-controller-operator-history
- **operator_operates_mine:** Rodosta Brothers Contractors Inc → Rodosta Dirt Pit; 1984-08-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rodosta Joseph → Rodosta Dirt Pit; 1984-08-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rodosta Joseph → Rodosta Brothers Contractors Inc; 1984-08-16 to current/open; source msha-controller-operator-history