Cottonwood Creek 7-A
Key Takeaway
Cottonwood Creek 7-A is classified as high hazard in Nebraska. It was completed in 1989 and is 37 years old. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 58 ft (taller than 98.4% in NE) |
| Dam Length | 1,645 ft |
| Dam Type | Earth |
| Max Storage | 3.0K acre-ft |
| Normal Storage | 571 acre-ft |
| Surface Area | 74 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 13,282 cfs |
| Year Completed | 1989 (37 years old) |
| NID ID | NE02321 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Lower Platte North Natural Resources District
Local Government
Nearby Dams
Cottonwood Creek 6-B
Saunders, NE
Significant Hazard 49 ftDuck Creek 2
Saunders, NE
Significant Hazard 37 ftSand Creek 16
Saunders, NE
Low Hazard 33 ftCottonwood Creek 6-C
Saunders, NE
Low Hazard 45 ftCottonwood Creek 41-A
Saunders, NE
Low Hazard 45 ftDuck Creek 3
Saunders, NE
Low Hazard 29 ftSand Creek 15
Saunders, NE
Low Hazard 38 ftCottonwood Creek 6-E
Saunders, NE
Low Hazard 37 ftFrequently Asked Questions
What is the hazard classification of Cottonwood Creek 7-A?
Cottonwood Creek 7-A is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Cottonwood Creek 7-A?
Cottonwood Creek 7-A is owned by Lower Platte North Natural Resources District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Cottonwood Creek 7-A built?
Cottonwood Creek 7-A was completed in 1989, making it 37 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 Cottonwood Creek 7-A?
Cottonwood Creek 7-A serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Cottonwood Creek 7-A?
Cottonwood Creek 7-A has a dam height of 58 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 Cottonwood Creek 7-A last inspected?
Cottonwood Creek 7-A was last inspected on April 20, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.