# Multiple severe wounds and internal injuries at Knife River Corporation
> OSHA SIR `2024076507` · 7/17/2024 · MISSOULA, MONTANA
## Severity
- **1 hospitalization**
- **Body part:** Trunk and other lower extremities
- **Nature of injury:** Multiple severe wounds and internal injuries
## Cause
- **Event:** Other fall to lower level  6 to 30 feet
- **Source:** Stairs, steps
- **Secondary source:** Ground, travel, and support surfaces  unspecified
## Employer
- **Name:** Knife River Corporation
- **Location:** 4800 Wilkie Street, MISSOULA, MONTANA, 59808
- **NAICS:** 327320
- **Jurisdiction:** 1
## Narrative

An employee was on the spray-down rack in the truck yard unraveling a hose to spray the truck. The employee was walking backward to descend the stairs, walked off the stairs, and fell approximately 7 feet to the ground below. The employee sustained seven broken ribs, a collapsed lung and a broken hip.

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