Nelson Reservoir No. 1
Key Takeaway
Nelson Reservoir No. 1 is classified as low hazard in Oregon. It was completed in 1957 and is 69 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 34 ft (taller than 68.2% in OR) |
| Dam Length | 750 ft |
| Dam Type | Earth |
| Max Storage | 92 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 80 cfs |
| Year Completed | 1957 (69 years old) |
| NID ID | OR00278 |
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
CHARLES F. NELSON
Private
Nearby Dams
Hoover Pond 1
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Significant Hazard 26 ftAgate
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High Hazard 77 ftHoover Pond 3
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Significant Hazard 14 ftPierce Reservoir
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Low Hazard 29 ftYankee
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High Hazard 55 ftMedford Forest Nursery
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Low Hazard 15 ftBradshaw
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Significant Hazard 47 ftFrequently Asked Questions
What is the hazard classification of Nelson Reservoir No. 1?
Nelson Reservoir No. 1 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 Nelson Reservoir No. 1?
Nelson Reservoir No. 1 is owned by CHARLES F. NELSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Nelson Reservoir No. 1 built?
Nelson Reservoir No. 1 was completed in 1957, making it 69 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 Nelson Reservoir No. 1?
Nelson Reservoir No. 1 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 Nelson Reservoir No. 1?
Nelson Reservoir No. 1 has a dam height of 34 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 Nelson Reservoir No. 1 last inspected?
Nelson Reservoir No. 1 was last inspected on February 2, 2012. Inspection dates indicate when a formal review occurred, not the results of that inspection.