Pythias Lake Dam
Pythias Lake Dam is an earth dam located in Butler County, Ohio, built in 1969. It carries a Low hazard potential classification and has a fair condition assessment.
About Pythias Lake Dam
The primary purpose of Pythias Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Knights Of Pythias (private). It impounds the Tributary To Twin Creek near Middletown.
The dam stands 30 feet tall and stretches 340 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 26 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 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 05/06/2021.
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Location
| State | Ohio |
| County | Butler |
| Nearest City | Middletown |
| River/Stream | Tributary To Twin Creek |
| Coordinates | 39.57500, -84.36778 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 340 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 26 acre-ft |
| Max Storage | 26 acre-ft |
| Normal Storage | 13 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 240 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Knights of Pythias |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 05/06/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH01285 |
| Federal ID | OH01285 |
| More Info | State Dam Safety Program |