Evans Reservoir (Wasco)
Key Takeaway
Evans Reservoir (Wasco) is classified as low hazard in Oregon. It was completed in 1953 and is 73 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 13 ft (taller than 10.9% in OR) |
| Dam Length | 259 ft |
| Dam Type | Earth |
| Max Storage | 135 acre-ft |
| Normal Storage | 90 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 320 cfs |
| Year Completed | 1953 (73 years old) |
| NID ID | OR00217 |
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
KORTGE BROTHERS, LLC THE DALLES, 97058
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Evans Reservoir (Wasco)?
Evans Reservoir (Wasco) 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 Evans Reservoir (Wasco)?
Evans Reservoir (Wasco) is owned by KORTGE BROTHERS, LLC THE DALLES, 97058 (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Evans Reservoir (Wasco) built?
Evans Reservoir (Wasco) 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 Evans Reservoir (Wasco)?
Evans Reservoir (Wasco) 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 Evans Reservoir (Wasco)?
Evans Reservoir (Wasco) has a dam height of 13 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 Evans Reservoir (Wasco) last inspected?
Evans Reservoir (Wasco) was last inspected on June 7, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.