Sproul Reservoir
Key Takeaway
Sproul Reservoir is classified as low hazard in Oregon. It was completed in 1962 and is 64 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 24 ft (taller than 42.5% in OR) |
| Dam Length | 950 ft |
| Dam Type | Earth |
| Max Storage | 400 acre-ft |
| Normal Storage | 320 acre-ft |
| Surface Area | 42 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 380 cfs |
| Year Completed | 1962 (64 years old) |
| NID ID | OR00347 |
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
GANDER RANCH, LLC, PORTLAND
Private
Frequently Asked Questions
What is the hazard classification of Sproul Reservoir?
Sproul Reservoir 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 Sproul Reservoir?
Sproul Reservoir is owned by GANDER RANCH, LLC, PORTLAND (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sproul Reservoir built?
Sproul Reservoir was completed in 1962, making it 64 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 Sproul Reservoir?
Sproul Reservoir serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Sproul Reservoir?
Sproul Reservoir has a dam height of 24 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 Sproul Reservoir last inspected?
Sproul Reservoir was last inspected on May 19, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.