Narraguinnep - Main Dam
Key Takeaway
Narraguinnep - Main Dam is classified as high hazard in Colorado. It was completed in 1908 and is 118 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 | 100 ft (taller than 96.2% in CO) |
| Dam Length | 3,887 ft |
| Dam Type | Earth |
| Max Storage | 22.7K acre-ft |
| Normal Storage | 19.0K acre-ft |
| Surface Area | 581 acres |
| Drainage Area | 9 sq mi |
| Max Discharge | 6,100 cfs |
| Year Completed | 1908 (118 years old) |
| NID ID | CO01089 |
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
MONTEZUMA VALLEY IRRIGATION CO.
Private
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Low Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Narraguinnep - Main Dam?
Narraguinnep - Main 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 Narraguinnep - Main Dam?
Narraguinnep - Main Dam is owned by MONTEZUMA VALLEY IRRIGATION CO. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Narraguinnep - Main Dam built?
Narraguinnep - Main Dam was completed in 1908, making it 118 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 Narraguinnep - Main Dam?
Narraguinnep - Main Dam serves the following purposes: Irrigation, Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Narraguinnep - Main Dam?
Narraguinnep - Main Dam has a dam height of 100 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 Narraguinnep - Main Dam last inspected?
Narraguinnep - Main Dam was last inspected on May 10, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.