# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220180670011` · 02/21/2018 · Triangle Rock Products
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** STEPPING OR KNEELING ON OBJECT
- **Accident type:** Struck against stationary object
- **Occupation:** Outside foreman, Leadman
- **Activity:** Walking, Running
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 18
- **Mine experience:** 11.02 years
## Operator
- **Controller:** Vulcan Materials Company
- **Operator:** Triangle Rock Products
- **Mine:** [0401843](https://api.ai-analytics.org/mine/0401843)
## Narrative

Employee requested medical treatment on 2/21/18 and was prescribed work restrictions by the occupational physician. The employee alleged that ee stepped on a rock, felt two pops in L-knee and felt pain. This is an alleged, non-witnessed questionable event.

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