# Amputations at Knife River Corp.
> OSHA SIR `2016032089` · 3/9/2016 · MISSOULA, MONTANA
## Severity
- **1 amputation**
- **Body part:** Finger(s), fingernail(s), n.e.c.
- **Nature of injury:** Amputations
## Cause
- **Event:** Contact with objects and equipment, n.e.c.
- **Source:** Cement truck, concrete mixer truck
- **Secondary source:** Jewelry, ID badge lanyards
## Employer
- **Name:** Knife River Corp.
- **Location:** 4815 Mullen Road, MISSOULA, MONTANA, 59808
- **NAICS:** 327320
- **Jurisdiction:** 1
## Narrative

An employee was descending the fold down access ladder on the concrete mixer truck after spraying down the hopper. The employee's wedding ring, worn on left ring finger, was caught on a bolt associated with the ladder safety latch, located on the left side of ladder. The injured finger required medical amputation.

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*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · AI Analytics · CC0 1.0*