# Relationship history for MSHA mine 2602412

Current hierarchy: **Eagle Materials Inc → 3D Concrete llc → DAYTON MATERIALS**

- 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:** Granite Construction Inc → DAYTON MATERIALS; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Dayton Materials LLC → DAYTON MATERIALS; 2000-03-01 to 2008-02-27; source msha-controller-operator-history
- **controller_controls_mine:** Bing Construction Of Nevada  et al → DAYTON MATERIALS; 2000-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bing Construction Of Nevada  et al → Dayton Materials LLC; 2000-03-01 to 2008-02-27; source msha-controller-operator-history
- **controller_controls_operator:** Wass Family Corp  et al → Dayton Materials LLC; 2000-03-01 to 2008-02-27; source msha-controller-operator-history
- **operator_operates_mine:** Granite Construction Company → DAYTON MATERIALS; 2008-02-28 to 2012-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Granite Construction Inc → Granite Construction Company; 2008-02-28 to 2012-12-31; source msha-controller-operator-history
- **operator_operates_mine:** 3D Concrete → DAYTON MATERIALS; 2013-01-01 to 2019-08-02; source msha-controller-operator-history
- **controller_controls_mine:** Shane N  Davis  et al → DAYTON MATERIALS; 2013-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shane N  Davis  et al → 3D Concrete; 2013-01-01 to 2019-08-02; source msha-controller-operator-history
- **controller_controls_operator:** John W  Davis  et al → 3D Concrete; 2013-01-01 to 2019-08-02; source msha-controller-operator-history
- **operator_operates_mine:** 3D Concrete LLC → DAYTON MATERIALS; 2019-08-03 to 2026-04-06; source msha-controller-operator-history
- **controller_controls_mine:** Eagle Materials Inc → DAYTON MATERIALS; 2019-08-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eagle Materials Inc → 3D Concrete LLC; 2019-08-03 to 2026-04-06; source msha-controller-operator-history
- **operator_operates_mine:** Granite Construction Company → DAYTON MATERIALS; 2026-04-07 to 2026-04-07; source msha-controller-operator-history
- **controller_controls_operator:** Granite Construction Inc → Granite Construction Company; 2026-04-07 to 2026-04-07; source msha-controller-operator-history
- **operator_operates_mine:** 3D Concrete llc → DAYTON MATERIALS; 2026-04-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eagle Materials Inc → 3D Concrete llc; 2026-04-08 to current/open; source msha-controller-operator-history