# FALL OF ROOF OR BACK
> MSHA accident `220150970021` · 04/03/2015 · Bridger Coal Company 
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** FALL OF ROOF OR BACK
- **Accident type:** Struck by falling object
- **Occupation:** Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer
- **Activity:** Set, Remove, Relocate props
- **Injury source:** CAVING ROCK,COAL,ORE,WSTE
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 17
- **Mine experience:** 9.52 years
## Operator
- **Controller:** MidAmerican Energy Holdings Company; IDACORP
- **Operator:** Bridger Coal Company 
- **Mine:** [4801646](https://api.ai-analytics.org/mine/4801646)
## Narrative

Employees were in the process of installing supplemental roof beams along the beltline. As they were cleaning the walkway a piece of rock fell and struck the employee.

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