Wiser Oil Reservoir No 4 is an earth dam located in Lee County, Kentucky, built in 1950. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 35 ft35 ft tall and 260 ft long, taller than 80% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Wiser Oil Reservoir No 4
Wiser Oil Reservoir No 4 is a dam in Lee, Kentucky. The dam is owned by Bretagne (private). It impounds the Tr-big Sinking Creek near Fixer.
The dam stands 35 feet tall and stretches 260 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 152 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.
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 01/13/2026.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Kentucky |
| County | Lee |
| Nearest City | Fixer |
| River/Stream | Tr-big Sinking Creek |
| Coordinates | 37.69028, -83.72111 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 260 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 152 acre-ft |
| Max Storage | 152 acre-ft |
| Normal Storage | 106 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Bretagne |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 01/13/2026 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | KY00574 |
| Federal ID | KY00574 |
| More Info | State Dam Safety Program |