Canyon Ferry
Key Takeaway
Canyon Ferry is classified as high hazard in Montana. It was completed in 1953 and is 73 years old. Its primary use is flood risk reduction. 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 | 225 ft (taller than 99.9% in MT) |
| Dam Length | 1,000 ft |
| Dam Type | Concrete |
| Max Storage | 2.1M acre-ft |
| Normal Storage | 1.9M acre-ft |
| Surface Area | 34,435 acres |
| Drainage Area | 15,860 sq mi |
| Max Discharge | 150,000 cfs |
| Year Completed | 1953 (73 years old) |
| NID ID | MT00568 |
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
RECLAMATION
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Canyon Ferry?
Canyon Ferry 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 Canyon Ferry?
Canyon Ferry is owned by RECLAMATION (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Canyon Ferry built?
Canyon Ferry was completed in 1953, making it 73 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 Canyon Ferry?
Canyon Ferry serves the following purposes: Flood Risk Reduction, Irrigation, Fish And Wildlife Pond, Recreation, Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Canyon Ferry?
Canyon Ferry has a dam height of 225 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 Canyon Ferry last inspected?
Canyon Ferry was last inspected on September 8, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.