Tennessee Consolidated Coal #1 Dam is an earth dam located in Marion County, Tennessee, built in 1976. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 340 ft340 ft tall and 2,550 ft long, taller than 99% of U.S. dams with a recorded height. Height is drawn to scale against the Statue of Liberty, 305 ft ground to torch; the profile is a generic embankment section and the water level is illustrative.
About Tennessee Consolidated Coal #1 Dam
Tennessee Consolidated Coal #1 Dam is a dam in Marion, Tennessee. The dam is owned by Lexington Coal Company (private).
The dam stands 340 feet tall and stretches 2,550 feet across, creates a reservoir covering 19 acres, has a maximum storage capacity of 1,342 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1976, the structure is 50 years old.
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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/14/2025.
At 340 feet, this dam is taller than 99% of all dams in the United States.
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Location
| State | Tennessee |
| County | Marion |
| Coordinates | 35.27333, -85.56056 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 340 ft |
| Dam Length | 2,550 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 1,342 acre-ft |
| Max Storage | 1,342 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 19 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Lexington Coal Company |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/14/2025 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN11511 |
| Federal ID | TN11511 |
| More Info | State Dam Safety Program |