# FALL OF ROOF OR BACK
> MSHA accident `220020700103` · 03/04/2002 · 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:** —
- **Mine experience:** — years
## Operator
- **Controller:** BHP Billiton
- **Operator:** Westmoreland San Juan Mining LLC
- **Mine:** [2902170](https://api.ai-analytics.org/mine/2902170)
## Narrative

MINERS OBSERVED A ROOF FALL AT CROSSCUT 27 IN THE NUMBER 3 ENTRY OF TG-101 WORKING SECTION. THE FALL WAS APPROX 20 FT IN LENGTH WAS APPROX 18 FT IN WIDTH AND WAS UP TO EST 13 FT TOTAL HEIGHT. THE AREA HAD BEEN SUPPORTED WITH 8 FT FULLY GROUTED BOLTS ON 5 FT CENTERS. THE BOLTS HAD BEEN SUPPLEMENTED WITH WELDED WIRE MESH.

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