Line Creek #3b Dam is an earth dam located in Clay County, Tennessee, built in 1965. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 50 ft50 ft tall and 445 ft long, taller than 92% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Line Creek #3b Dam
Line Creek #3b Dam is a dam in Clay, Tennessee. The dam is owned by Clay County (local government). It impounds the Little Trace Creek near Hermitage Springs.
The dam stands 50 feet tall and stretches 445 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 1,447 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1965, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/21/2024.
At 50 feet, this dam is taller than 92% of dams nationwide.
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Location
| State | Tennessee |
| County | Clay |
| Nearest City | Hermitage Springs |
| River/Stream | Little Trace Creek |
| Coordinates | 36.56861, -85.71194 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 50 ft |
| Dam Length | 445 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 1,447 acre-ft |
| Max Storage | 1,447 acre-ft |
| Normal Storage | 90 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 4 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Clay County |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/21/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN02703 |
| Federal ID | TN02703 |
| More Info | State Dam Safety Program |