O'neill Lake Dam
O'neill Lake Dam is an earth dam located in Cuyahoga County, Ohio. It carries a Low hazard potential classification and has a poor condition assessment.
About O'neill Lake Dam
The primary purpose of O'neill Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by O'neill Lake Association (private). It impounds the Tributary To Aurora Branch Of Chagrin River near Bentleyville.
The dam stands 28 feet tall and stretches 350 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 74 acre-feet, and collects water from a drainage area of 0 square miles.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 06/22/2023.
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Location
| State | Ohio |
| County | Cuyahoga |
| Nearest City | Bentleyville |
| River/Stream | Tributary To Aurora Branch Of Chagrin River |
| Coordinates | 41.40333, -81.41333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 350 ft |
Storage & Hydraulics
| NID Storage | 74 acre-ft |
| Max Storage | 74 acre-ft |
| Normal Storage | 46 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 333 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | O'Neill Lake Association |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 06/22/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH01492 |
| Federal ID | OH01492 |
| More Info | State Dam Safety Program |