# FALL OF ROOF OR BACK
> MSHA accident `220023600013` · 12/12/2002 · Echo Bay Minerals Company
## 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:** Echo Bay Mines Ltd
- **Operator:** Echo Bay Minerals Company
- **Mine:** [4503336](https://api.ai-analytics.org/mine/4503336)
## Narrative

A FAULT INTERSECTION IN THE 2100 L CAVED ABOVE BOLT ANCHORAGE IN THE BACK. THE STRUCTURE WAS WEDGE-SHAPED AND CONSISTED OF ABOUT 50-75 TONS OF ROCK. 7 FT LONG SPLIT-SETS WERE USED, IN CONJUNCT ION WITH CHAIN LINK WIRE. ONE OR MORE SPLIT-SETS HAD RUSTED BADLY. THIS DRIFT WAS DEVELOPED IN EARLY 1995.

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