Bethany Dam is an earth dam located in Henry County, Tennessee, built in 1987. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 24 ft24 ft tall and 425 ft long. 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 Bethany Dam
Bethany Dam is a dam in Henry, Tennessee. The dam is owned by Wtrba (state). It impounds the North Fork Obion River.
The dam stands 24 feet tall and stretches 425 feet across, has a maximum storage capacity of 64 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1987, the structure is 39 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 11/26/2024.
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Location
| State | Tennessee |
| County | Henry |
| River/Stream | North Fork Obion River |
| Coordinates | 36.43694, -88.50667 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Length | 425 ft |
| Year Completed | 1987 (39 years old) |
Storage & Hydraulics
| NID Storage | 64 acre-ft |
| Max Storage | 64 acre-ft |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Wtrba |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/26/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN07920 |
| Federal ID | TN07920 |
| More Info | State Dam Safety Program |