Fontana Dam
Fontana Dam is a concrete dam located in Graham County, North Carolina, built in 1944. It carries a High hazard potential classification.
About Fontana Dam
The primary purpose of Fontana Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Tva (federal). It impounds the Little Tennessee River near Tapoco.
The dam stands 480 feet tall and stretches 2,365 feet across, creates a reservoir covering 10,290 acres, has a maximum storage capacity of 1,552,689 acre-feet, and collects water from a drainage area of 1,571 square miles. Completed in 1944, the structure is well-established, with more than 75 years of service.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 02/15/2024.
At 480 feet, this dam is taller than 99% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The North Carolina dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | North Carolina |
| County | Graham |
| Nearest City | Tapoco |
| River/Stream | Little Tennessee River |
| Coordinates | 35.45260, -83.80477 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 480 ft |
| Dam Height | 455 ft |
| Dam Length | 2,365 ft |
| Year Completed | 1944 (82 years old) |
Storage & Hydraulics
| NID Storage | 1,552,689 acre-ft |
| Max Storage | 1,552,689 acre-ft |
| Normal Storage | 1,370,253 acre-ft |
| Surface Area | 10,290 acres |
| Drainage Area | 1,571 sq mi |
| Max Discharge | 189,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | TVA |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 02/15/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NC00298 |
| Federal ID | NC00298 |
| More Info | State Dam Safety Program |