Isham Dam
Key Takeaway
Isham Dam is classified as low hazard in Nebraska. It was completed in 1953 and is 73 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 26 ft (taller than 50.7% in NE) |
| Dam Length | 502 ft |
| Dam Type | Earth |
| Max Storage | 619 acre-ft |
| Normal Storage | 435 acre-ft |
| Surface Area | 42 acres |
| Drainage Area | 11 sq mi |
| Max Discharge | 1,400 cfs |
| Year Completed | 1953 (73 years old) |
| NID ID | NE00788 |
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
R Will Isham Cattle Company
Private
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Low Hazard 24 ftFrequently Asked Questions
What is the hazard classification of Isham Dam?
Isham 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 Isham Dam?
Isham Dam is owned by R Will Isham Cattle Company (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Isham Dam built?
Isham Dam 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 Isham Dam?
Isham Dam 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 Isham Dam?
Isham Dam has a dam height of 26 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 Isham Dam last inspected?
Isham Dam was last inspected on April 20, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.