# MACHINERY
> MSHA accident `220231350019` · 05/03/2023 · Alleyton Resource
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** MACHINERY
- **Accident type:** Struck by falling object
- **Occupation:** Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman
- **Activity:** Handling supplies or material
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** CONCUSSION-BRAIN,CEREBRAL
- **Body part:** BRAIN
- **Days lost:** 0
- **Mine experience:** 1 years
## Operator
- **Controller:** Summit Materials LLC
- **Operator:** Alleyton Resource
- **Mine:** [4104807](https://api.ai-analytics.org/mine/4104807)
## Narrative

Miner was on the plant clearing the roll box while the plant was running when a rock that was estimated 6 inches fell roughly 4-6 feet from the top deck and struck the miner.  Miner was wearing a hard hat at the time and there was a witness that saw the incident occur.  There was no open injuries or bruising.

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