Jeffrey Dike No 1
Key Takeaway
Jeffrey Dike No 1 is classified as low hazard in Nebraska. It was completed in 1941 and is 85 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 10 ft (taller than 1.4% in NE) |
| Dam Length | 2,265 ft |
| Dam Type | Earth |
| Max Storage | 6.9K acre-ft |
| Normal Storage | 5.2K acre-ft |
| Surface Area | 5,756 acres |
| Drainage Area | 14 sq mi |
| Year Completed | 1941 (85 years old) |
| NID ID | NE01036 |
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
Central Nebraska Public Power & Irrigation District
Public Utility
Nearby Dams
West Conroy Dam
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Low Hazard 30 ftEast Cottonwood Canyon
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Low Hazard 31 ftFrequently Asked Questions
What is the hazard classification of Jeffrey Dike No 1?
Jeffrey Dike 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 Jeffrey Dike No 1?
Jeffrey Dike No 1 is owned by Central Nebraska Public Power & Irrigation District (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Jeffrey Dike No 1 built?
Jeffrey Dike No 1 was completed in 1941, making it 85 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 Jeffrey Dike No 1?
Jeffrey Dike No 1 serves the following purposes: Irrigation, Hydroelectric, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Jeffrey Dike No 1?
Jeffrey Dike No 1 has a dam height of 10 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 Jeffrey Dike No 1 last inspected?
Jeffrey Dike No 1 was last inspected on September 27, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.