# Relationship history for MSHA mine 2003455

Current hierarchy: **Kyle  Fortier; Steven  Rigoni; Christopher  Rigoni → Bacco Construction Company → Crusher Spread #1**

- 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

- **controller_controls_mine:** John  Fortier  et al → Crusher Spread #1; 2001-05-01 to 2022-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Bacco Construction Company → Crusher Spread #1; 2012-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Fortier  et al → Bacco Construction Company; 2012-01-01 to 2022-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Doug  Rigoni  et al → Bacco Construction Company; 2012-01-01 to 2022-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Steven  Rigoni et al → Crusher Spread #1; 2022-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steven  Rigoni et al → Bacco Construction Company; 2022-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kyle  Fortier et al → Bacco Construction Company; 2022-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Christopher  Rigoni et al → Bacco Construction Company; 2022-06-01 to current/open; source msha-controller-operator-history