Tara Lake Dam
Tara Lake Dam is an earth dam located in Greene County, Ohio, built in 1969. It carries a Significant hazard potential classification and has a poor condition assessment.
About Tara Lake Dam
The primary purpose of Tara Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Multiple Owners - 9540-006 (private). It impounds the Tributary To Little Miami River near Washington Mills.
The dam stands 20 feet tall and stretches 370 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 49 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1969, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 05/28/2024.
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Location
| State | Ohio |
| County | Greene |
| Nearest City | Washington Mills |
| River/Stream | Tributary To Little Miami River |
| Coordinates | 39.69944, -84.03806 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 370 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 49 acre-ft |
| Max Storage | 49 acre-ft |
| Normal Storage | 22 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 84 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Multiple Owners - 9540-006 |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 05/28/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH01660 |
| Federal ID | OH01660 |
| More Info | State Dam Safety Program |