Highland Dam is an earth dam located in Lewis County, Tennessee, built in 1958. It carries a Significant hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 400 ft long, taller than 68% 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 Highland Dam
Highland Dam is a dam in Lewis, Tennessee. The dam is owned by Elephant Sanctuary of Holenwald (private). It impounds the Cotton Branch near Farmers Exchange.
The dam stands 30 feet tall and stretches 400 feet across, creates a reservoir covering 22 acres, has a maximum storage capacity of 264 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1958, 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. The most recent inspection on record was 10/04/2023.
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Location
| State | Tennessee |
| County | Lewis |
| Nearest City | Farmers Exchange |
| River/Stream | Cotton Branch |
| Coordinates | 35.59917, -87.59361 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Length | 400 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 264 acre-ft |
| Max Storage | 264 acre-ft |
| Normal Storage | 194 acre-ft |
| Surface Area | 22 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Elephant Sanctuary of Holenwald |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 10/04/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN10101 |
| Federal ID | TN10101 |
| More Info | State Dam Safety Program |