# FALL OF ROOF OR BACK
> MSHA accident `220093270032` · 11/11/2009 · Westmoreland San Juan Mining LLC
## Details
- **Degree of injury:** ACCIDENT ONLY
- **Classification:** FALL OF ROOF OR BACK
- **Accident type:** Accident type, without injuries
- **Occupation:** —
- **Activity:** —
- **Injury source:** —
- **Nature of injury:** —
- **Body part:** —
- **Days lost:** 0
- **Mine experience:** — years
## Operator
- **Controller:** BHP Billiton
- **Operator:** Westmoreland San Juan Mining LLC
- **Mine:** [2902170](https://api.morvs.ai/mine/2902170)
## Narrative

The intersection of No. 1 Entry, at XC-11 in LW-304 had been dangered off due to poor roof conditions.  Crews were progressively installing roof to floor supports toward the intersection. As pumpable cribs were pumped, they observed the roof sag. The roof eventually fell, 18ft W by 60 ft L by approx 15 ft high.

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