Calderwood
Key Takeaway
Calderwood is classified as high hazard in Tennessee. It was completed in 1930 and is 96 years old. Its primary use is hydroelectric. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 214 ft (taller than 93.3% in TN) |
| Dam Length | 916 ft |
| Dam Type | Arch |
| Max Storage | 43.5K acre-ft |
| Normal Storage | 41.1K acre-ft |
| Surface Area | 570 acres |
| Drainage Area | 1,856 sq mi |
| Max Discharge | 375,000 cfs |
| Year Completed | 1930 (96 years old) |
| NID ID | TN00906 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Brookfield Renewable Energy Group (ARO)
Private
Nearby Dams
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Significant Hazard 26 ftCheoah
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Low Hazard 28 ftFontana Dam
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High Hazard 455 ftFrequently Asked Questions
What is the hazard classification of Calderwood?
Calderwood is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Calderwood?
Calderwood is owned by Brookfield Renewable Energy Group (ARO) (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Calderwood built?
Calderwood was completed in 1930, making it 96 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Calderwood?
Calderwood serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Calderwood?
Calderwood has a dam height of 214 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Calderwood last inspected?
Calderwood was last inspected on July 19, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.