South Fork Diversion Dam
Key Takeaway
South Fork Diversion Dam is classified as low hazard in Oregon. It was completed in 1932 and is 94 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 25 ft (taller than 43.9% in OR) |
| Dam Length | 172 ft |
| Dam Type | Concrete |
| Max Storage | 18 acre-ft |
| Normal Storage | 5 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 79 sq mi |
| Year Completed | 1932 (94 years old) |
| NID ID | OR00716 |
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
PacifiCorp
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of South Fork Diversion Dam?
South Fork Diversion 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 South Fork Diversion Dam?
South Fork Diversion Dam is owned by PacifiCorp (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was South Fork Diversion Dam built?
South Fork Diversion Dam was completed in 1932, making it 94 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 South Fork Diversion Dam?
South Fork Diversion Dam 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 South Fork Diversion Dam?
South Fork Diversion Dam has a dam height of 25 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 South Fork Diversion Dam last inspected?
South Fork Diversion Dam was last inspected on July 25, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.