# Fractures at Hamm Brothers Concrete Contractors, Inc.
> OSHA SIR `2019033171` · 3/27/2019 · CHALFONT, PENNSYLVANIA
## Severity
- **1 hospitalization**
- **Body part:** Multiple body parts, n.e.c.
- **Nature of injury:** Fractures
## Cause
- **Event:** Struck by swinging part of powered vehicle
- **Source:** Cement truck, concrete mixer truck
## Employer
- **Name:** Hamm Brothers Concrete Contractors, Inc.
- **Location:** 431 Upper Stump Road, CHALFONT, PENNSYLVANIA, 18914
- **NAICS:** 238110
- **Jurisdiction:** 1
## Narrative

An employee was standing on a concrete form, pumping concrete. The pump drew in air and it caused an air hammer in the line, knocking the employee from the form. He suffered broken ribs, a broken arm, and other injuries.

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