Alcoa Dam is an earth dam located in Blount County, Tennessee, built in 1991. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 34 ft34 ft tall and 2,730 ft long, taller than 78% 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 Alcoa Dam
Alcoa Dam is a dam in Blount, Tennessee. The dam is owned by City of Alcoa (local government).
The dam stands 34 feet tall and stretches 2,730 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 177 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1991, the structure is 35 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 01/15/2026.
At 34 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | Tennessee |
| County | Blount |
| Coordinates | 35.81028, -83.92222 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Length | 2,730 ft |
| Year Completed | 1991 (35 years old) |
Storage & Hydraulics
| NID Storage | 177 acre-ft |
| Max Storage | 177 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | City of Alcoa |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 01/15/2026 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TN00913 |
| Federal ID | TN00913 |
| More Info | State Dam Safety Program |