Nissen #2
Key Takeaway
Nissen #2 is classified as high hazard in Colorado. It was completed in 1974 and is 52 years old. Its primary use is irrigation. 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 | 6 ft (taller than 0.2% in CO) |
| Dam Length | 2,300 ft |
| Dam Type | Earth |
| Max Storage | 291 acre-ft |
| Normal Storage | 154 acre-ft |
| Surface Area | 29 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,005 cfs |
| Year Completed | 1974 (52 years old) |
| NID ID | CO02128 |
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
EAGLE TRACE GOLF CLUB
Private
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What is the hazard classification of Nissen #2?
Nissen #2 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 Nissen #2?
Nissen #2 is owned by EAGLE TRACE GOLF CLUB (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Nissen #2 built?
Nissen #2 was completed in 1974, making it 52 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 Nissen #2?
Nissen #2 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 Nissen #2?
Nissen #2 has a dam height of 6 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 Nissen #2 last inspected?
Nissen #2 was last inspected on May 18, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.