# FALL OF ROOF OR BACK
> MSHA accident `220251840042` · 06/25/2025 · NR Hamm Quarry LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** FALL OF ROOF OR BACK
- **Accident type:** Struck by... NEC
- **Occupation:** Miner, NEC
- **Activity:** Unknown
- **Injury source:** NOISE,NEC
- **Nature of injury:** OTHER INJURY,NEC
- **Body part:** HEAD, MULTIPLE PARTS
- **Days lost:** —
- **Mine experience:** 0.58 years
## Operator
- **Controller:** Summit Materials LLC
- **Operator:** NR Hamm Quarry LLC
- **Mine:** [1302217](https://api.ai-analytics.org/mine/1302217)
## Narrative

The underground mine had a cave-in and employee is experiencing ringing of the left ear and headaches caused by the loud noise and air pressure.

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