# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220221030021` · 04/08/2022 · Barton Sand & Gravel Co
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** STEPPING OR KNEELING ON OBJECT
- **Accident type:** Struck against stationary object
- **Occupation:** Crusher attendant/operator, Pan feeder operator/worker
- **Activity:** Walking, Running
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** ANKLE
- **Days lost:** 0
- **Mine experience:** 4.77 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Barton Sand & Gravel Co
- **Mine:** [2101218](https://api.ai-analytics.org/mine/2101218)
## Narrative

A left ankle sprain occurred when the employee stepped on a four inch rock and rolled their ankle. 

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