O'brien Lake Dam
O'brien Lake Dam is an earth dam located in Ashtabula County, Ohio, built in 1968. It carries a Low hazard potential classification and has a poor condition assessment.
About O'brien Lake Dam
The primary purpose of O'brien Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Patrick & Sandra O'brien (private). It impounds the Tributary To Three Brothers Creek near Turkeyfoot Corner.
The dam stands 24 feet tall and stretches 525 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 168 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1968, the structure is well into its service life at over 50 years old.
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. The most recent inspection on record was 10/26/2021.
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Location
| State | Ohio |
| County | Ashtabula |
| Nearest City | Turkeyfoot Corner |
| River/Stream | Tributary To Three Brothers Creek |
| Coordinates | 41.65750, -80.79833 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 525 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 168 acre-ft |
| Max Storage | 168 acre-ft |
| Normal Storage | 104 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 190 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Patrick & Sandra O'Brien |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 10/26/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH00398 |
| Federal ID | OH00398 |
| More Info | State Dam Safety Program |