Hico 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 · 21 ft21 ft tall and 855 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 Hico Dam
Hico Dam is a dam in Henry, Tennessee. The dam is owned by Wtrba (state). It impounds the Trib-north Fork Obion Riv.
The dam stands 21 feet tall and stretches 855 feet across, has a maximum storage capacity of 250 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 | Trib-north Fork Obion Riv |
| Coordinates | 36.42139, -88.43083 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Length | 855 ft |
| Year Completed | 1987 (39 years old) |
Storage & Hydraulics
| NID Storage | 250 acre-ft |
| Max Storage | 250 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 | TN07921 |
| Federal ID | TN07921 |
| More Info | State Dam Safety Program |