Prospect
Key Takeaway
Prospect is classified as significant hazard in Colorado. It was completed in 1914 and is 112 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 44 ft (taller than 84.9% in CO) |
| Dam Length | 5,301 ft |
| Dam Type | Earth |
| Max Storage | 9.3K acre-ft |
| Normal Storage | 6.4K acre-ft |
| Surface Area | 398 acres |
| Drainage Area | 9 sq mi |
| Max Discharge | 14,700 cfs |
| Year Completed | 1914 (112 years old) |
| Year Modified | 1999 |
| NID ID | CO01106 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
HENRYLYN IRRIGATION DISTRICT
Private
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What is the hazard classification of Prospect?
Prospect is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Prospect?
Prospect is owned by HENRYLYN IRRIGATION DISTRICT (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Prospect built?
Prospect was completed in 1914, making it 112 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 Prospect?
Prospect 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 Prospect?
Prospect has a dam height of 44 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 Prospect last inspected?
Prospect was last inspected on June 18, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.