Carter P Johnson Dam
Key Takeaway
Carter P Johnson Dam is classified as high hazard in Nebraska. It was completed in 1935 and is 91 years old. Its primary use is recreation. 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 | 35 ft (taller than 81.9% in NE) |
| Dam Length | 480 ft |
| Dam Type | Earth |
| Max Storage | 202 acre-ft |
| Normal Storage | 43 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 53 sq mi |
| Max Discharge | 7,879 cfs |
| Year Completed | 1935 (91 years old) |
| NID ID | NE01124 |
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
Nebraska Game & Parks Commission
State Government
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Low Hazard 12 ftFrequently Asked Questions
What is the hazard classification of Carter P Johnson Dam?
Carter P Johnson Dam 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 Carter P Johnson Dam?
Carter P Johnson Dam is owned by Nebraska Game & Parks Commission (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Carter P Johnson Dam built?
Carter P Johnson Dam was completed in 1935, making it 91 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 Carter P Johnson Dam?
Carter P Johnson Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Carter P Johnson Dam?
Carter P Johnson Dam has a dam height of 35 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 Carter P Johnson Dam last inspected?
Carter P Johnson Dam was last inspected on June 8, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.