# Ohio — Dam safety hazard classification, inspection frequency, and owner obligations by US state

For Ohio, hazard classification is Class II; classification criteria is health hazard, flood water damage to homes, businesses, industrial structures (no loss of life envisioned), damage to state and interstate highways, loss of public utilities, railroads, downstream dams, only access to residential areas; inspection frequency is periodic; mandatory is yes; inspector qualification is Chief of the Division of Water Resources, recorded from its source on 2026-08-18.

- **State:** Ohio _(verified: appears in the quote below)_
- **Hazard classification:** Class II _(verified: appears in the quote below)_
- **Classification criteria:** health hazard, flood water damage to homes, businesses, industrial structures (no loss of life envisioned), damage to state and interstate highways, loss of public utilities, railroads, downstream dams, only access to residential areas _(verified: appears in the quote below)_
- **Inspection frequency:** periodic _(verified: appears in the quote below)_
- **Mandatory:** yes _(our reading, not quoted from the source)_
- **Inspector qualification:** Chief of the Division of Water Resources _(verified: appears in the quote below)_
- **Statute:** 1501:21-13 _(verified: appears in the quote below)_

## What the source says

> Class II — health hazard, flood water damage to homes, businesses, industrial structures (no loss of life envisioned), damage to state and interstate highways, loss of public utilities, railroads, downstream dams, only access to residential areas

## Source

- https://ohiodnr.gov/rules-and-regulations/rules-and-regulations-by-division/water-resources/dam-levee-classification
- https://codes.ohio.gov/ohio-administrative-code/rule-1501:21-21-01

Last verified: 2026-08-18. Review by: 2027-08-18.
Part of [Dam safety hazard classification, inspection frequency, and owner obligations by US state](https://referencesource.org/state-dam-safety-classification/).