# MACHINERY
> MSHA accident `220001400045` · 05/11/2000 · CalMat Co
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer
- **Activity:** Bulldozer
- **Injury source:** SURFACE MINING MACHINES
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** —
- **Mine experience:** 5.69 years
## Operator
- **Controller:** Legacy Vulcan Corp (Form:Vulcan Materials Co)
- **Operator:** CalMat Co
- **Mine:** [0401933](https://api.ai-analytics.org/mine/0401933)
## Narrative

WHILE PUSHING SAND AND GRAVEL MATERIAL IN THE PIT FOR PRODUCTION, EMPLOYEE RAISED BLADE OF DOZER AND DOZER JUMPED UP. EMPLOYEE FELT A SHARP IMPACT ON THE LOWER BACK.

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