Chapman
Key Takeaway
Chapman is classified as significant hazard in Colorado. It was completed in 1940 and is 86 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 34 ft (taller than 74.3% in CO) |
| Dam Length | 250 ft |
| Dam Type | Earth |
| Max Storage | 471 acre-ft |
| Normal Storage | 246 acre-ft |
| Surface Area | 22 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 200 cfs |
| Year Completed | 1940 (86 years old) |
| NID ID | CO02159 |
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
PRIMA RANCHES, LLC (GATES, VALERIE)
Private
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Low Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Chapman?
Chapman 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 Chapman?
Chapman is owned by PRIMA RANCHES, LLC (GATES, VALERIE) (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Chapman built?
Chapman was completed in 1940, making it 86 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 Chapman?
Chapman 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 Chapman?
Chapman has a dam height of 34 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 Chapman last inspected?
Chapman was last inspected on September 22, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.