# FALL OF ROOF OR BACK
> MSHA accident `220103260057` · 11/11/2010 · Sidwell Materials Inc.
## 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:** Jeffrey R  Sidwell
- **Operator:** Sidwell Materials Inc.
- **Mine:** [3304643](https://api.ai-analytics.org/mine/3304643)
## Narrative

Roof fall appears to have originated at or near the face in heading 1 & extended approx 100 to 120' outby. It is approx 30-35' in width at its widest point & extends above the roof line approx 15-19'. It is believed that a combination of low cover, lower structural quality of roof rock & possible localized horizontal stress had created the conditions leading to the failure.

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