# Relationship history for MSHA mine 2902455

Current hierarchy: **Claudia A  Waide → WAIDE SAND & GRAVEL → BRASHER 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

- **controller_controls_mine:** James A  Waide et al → BRASHER PIT; 1994-03-14 to 2024-06-10; source msha-controller-operator-history
- **operator_operates_mine:** WAIDE SAND & GRAVEL → BRASHER PIT; 2016-06-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James A  Waide et al → WAIDE SAND & GRAVEL; 2016-06-08 to 2024-06-10; source msha-controller-operator-history
- **controller_controls_mine:** Claudia A  Waide → BRASHER PIT; 2024-06-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Claudia A  Waide → WAIDE SAND & GRAVEL; 2024-06-11 to current/open; source msha-controller-operator-history