Upper Black Creek Res
Key Takeaway
Upper Black Creek Res is classified as significant hazard in Colorado. It was completed in 1957 and is 69 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 41 ft (taller than 82.7% in CO) |
| Dam Length | 269 ft |
| Dam Type | Earth |
| Max Storage | 655 acre-ft |
| Normal Storage | 428 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 15 sq mi |
| Max Discharge | 1,750 cfs |
| Year Completed | 1957 (69 years old) |
| NID ID | CO00879 |
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
BLUE LAKE RESERVOIR COMPANY (KNOWLTON, NANCY)
Private
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Significant Hazard 120 ftFrequently Asked Questions
What is the hazard classification of Upper Black Creek Res?
Upper Black Creek Res 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 Upper Black Creek Res?
Upper Black Creek Res is owned by BLUE LAKE RESERVOIR COMPANY (KNOWLTON, NANCY) (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Upper Black Creek Res built?
Upper Black Creek Res was completed in 1957, making it 69 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 Upper Black Creek Res?
Upper Black Creek Res serves the following purposes: Recreation, Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Upper Black Creek Res?
Upper Black Creek Res has a dam height of 41 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 Upper Black Creek Res last inspected?
Upper Black Creek Res was last inspected on August 26, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.