# Skull fracture and intracranial injury at Sonoma Underground Services, Inc.
> OSHA SIR `20181010837` · 10/20/2018 · CHICAGO, ILLINOIS
## Severity
- **1 hospitalization**
- **Body part:** Brain
- **Nature of injury:** Skull fracture and intracranial injury
## Cause
- **Event:** Fall through surface or existing opening, unspecified
- **Source:** Sewers, manholes, storm drains
- **Secondary source:** Nonclassifiable
## Employer
- **Name:** Sonoma Underground Services, Inc.
- **Location:** O'Hare International Airport, CHICAGO, ILLINOIS, 60666
- **NAICS:** 238210
- **Jurisdiction:** 1
## Narrative

An employee was rolling caution tape while walking backwards near a concrete manhole opening when he tripped and fell backwards into the open manhole, hitting his head on the concrete manhole rim. He suffered a skull fracture and bleeding in the brain.

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