Greenbriar Lake Dam
Greenbriar Lake Dam is an earth dam located in Butler County, Ohio, built in 1958. It carries a Low hazard potential classification and has a poor condition assessment.
About Greenbriar Lake Dam
The primary purpose of Greenbriar Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Greenbriar Lake Prop. Owners Assn. (private). It impounds the Tributary To Seven Mile Creek near Collinsville.
The dam stands 38 feet tall and stretches 1,520 feet across, creates a reservoir covering 27 acres, has a maximum storage capacity of 394 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1958, 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 05/05/2021.
At 38 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | Ohio |
| County | Butler |
| Nearest City | Collinsville |
| River/Stream | Tributary To Seven Mile Creek |
| Coordinates | 39.54333, -84.60500 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 1,520 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 394 acre-ft |
| Max Storage | 394 acre-ft |
| Normal Storage | 301 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 693 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Greenbriar Lake Prop. Owners Assn. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 05/05/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH00181 |
| Federal ID | OH00181 |
| More Info | State Dam Safety Program |