Scales #1 (Lower)
Key Takeaway
Scales #1 (Lower) is classified as low hazard in Colorado. It was completed in 1959 and is 67 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 10 ft (taller than 4.4% in CO) |
| Dam Length | 360 ft |
| Dam Type | Earth |
| Max Storage | 479 acre-ft |
| Normal Storage | 204 acre-ft |
| Surface Area | 55 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 441 cfs |
| Year Completed | 1959 (67 years old) |
| NID ID | CO00106 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
GRAND MESA RESERVOIR CO.
Private
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Low Hazard 17 ftFrequently Asked Questions
What is the hazard classification of Scales #1 (Lower)?
Scales #1 (Lower) is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Scales #1 (Lower)?
Scales #1 (Lower) is owned by GRAND MESA RESERVOIR CO. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Scales #1 (Lower) built?
Scales #1 (Lower) was completed in 1959, making it 67 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 Scales #1 (Lower)?
Scales #1 (Lower) 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 Scales #1 (Lower)?
Scales #1 (Lower) has a dam height of 10 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 Scales #1 (Lower) last inspected?
Scales #1 (Lower) was last inspected on July 23, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.