# Relationship history for MSHA mine 4101628

Current hierarchy: **Arcosa, Inc → ARCOSA LWS,LLC → Arcosa Streetman Plant # 1605**

- 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:** Txi (A/K/A Texas Industries Inc) → Arcosa Streetman Plant # 1605; 1950-01-01 to 2005-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Texas Industries Inc → Arcosa Streetman Plant # 1605; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Texas Industries Inc → Txi (A/K/A Texas Industries Inc); 1950-01-01 to 2005-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Texas Industries Inc → Arcosa Streetman Plant # 1605; 2004-12-01 to 2014-07-01; source msha-controller-operator-history
- **operator_operates_mine:** TXI Operations LP → Arcosa Streetman Plant # 1605; 2005-03-15 to 2013-03-22; source msha-controller-operator-history
- **controller_controls_operator:** Texas Industries Inc → TXI Operations LP; 2005-03-15 to 2013-03-22; source msha-controller-operator-history
- **operator_operates_mine:** ARCOSA LWS,LLC → Arcosa Streetman Plant # 1605; 2013-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Trinity Industries Inc → Arcosa Streetman Plant # 1605; 2013-03-23 to 2018-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Trinity Industries Inc → ARCOSA LWS,LLC; 2013-03-23 to 2018-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Martin Marietta Materials Inc → Arcosa Streetman Plant # 1605; 2014-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Martin Marietta Materials Inc → TXI Operations LP; 2014-07-02 to 2013-03-22; source msha-controller-operator-history
- **controller_controls_mine:** Arcosa, Inc → Arcosa Streetman Plant # 1605; 2018-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arcosa, Inc → ARCOSA LWS,LLC; 2018-11-01 to current/open; source msha-controller-operator-history