# POWERED HAULAGE
> MSHA accident `220110770029` · 03/10/2011 · Black Hills Bentonite
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** POWERED HAULAGE
- **Accident type:** Struck against a moving object
- **Occupation:** Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer
- **Activity:** Scraper, Pan scraper
- **Injury source:** SURFACE MINING MACHINES
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 1
- **Mine experience:** 10.23 years
## Operator
- **Controller:** Thomas A  Thorson
- **Operator:** Black Hills Bentonite
- **Mine:** [4800954](https://api.ai-analytics.org/mine/4800954)
## Narrative

Two scrapers were engaged in push-pull operation when lead machine hit a rock, causing it to stop before rear machine could hook-up.  Rear machine then ran into back of lead machine.  Operator of rear machine strained back muscles.

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