Riley Horn Dam
Key Takeaway
Riley Horn Dam is classified as low hazard in Oregon. It was completed in 1961 and is 65 years old. Its primary use is water supply.
Physical Details
| Dam Length | 610 ft |
| Dam Type | Gravity |
| Max Storage | 385 acre-ft |
| Normal Storage | 164 acre-ft |
| Surface Area | 65 acres |
| Max Discharge | 286 cfs |
| Year Completed | 1961 (65 years old) |
| NID ID | OR00760 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
DOI BLM
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Riley Horn Dam?
Riley Horn Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Riley Horn Dam?
Riley Horn Dam is owned by DOI BLM (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Riley Horn Dam built?
Riley Horn Dam was completed in 1961, making it 65 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 Riley Horn Dam?
Riley Horn Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Riley Horn Dam last inspected?
Riley Horn Dam was last inspected on September 19, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.