# MACHINERY
> **FATAL** · MSHA accident `220231950009` · 06/22/2023 · CalMat Co
## Details
- **Degree of injury:** FATALITY
- **Classification:** MACHINERY
- **Accident type:** Struck against a moving object
- **Occupation:** Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer
- **Activity:** Bulldozer
- **Injury source:** SURFACE MINING MACHINES
- **Nature of injury:** UNCLASSIFIED,NOT DETERMED
- **Body part:** MULTIPLE PARTS (MORE THAN ONE MAJOR)
- **Days lost:** —
- **Mine experience:** 2.15 years
## Operator
- **Controller:** Vulcan Materials Company
- **Operator:** CalMat Co
- **Mine:** [0404080](https://api.ai-analytics.org/mine/0404080)
## Narrative

Machine operator was operating a CAT D9T dozer clearing overburden material from a bench. Operator reversed the machine backwards an estimated 200-300 ft. at a high speed without looking back and without responding to honking from another machine, per witness testimony. Machine fell off an edge. Operator was pronounced dead at the scene. Machine is total loss.

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*