Scales #3 (Upper)
Key Takeaway
Scales #3 (Upper) is classified as low hazard in Colorado. It was completed in 1969 and is 57 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 7 ft (taller than 0.4% in CO) |
| Dam Length | 350 ft |
| Dam Type | Earth |
| Max Storage | 242 acre-ft |
| Normal Storage | 130 acre-ft |
| Surface Area | 45 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 681 cfs |
| Year Completed | 1969 (57 years old) |
| NID ID | CO00109 |
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
CITY OF GRAND JUNCTION
Local Government
Nearby Dams
Scales #1 (Lower)
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Low Hazard 24 ftBull Creek #2
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Low Hazard 11 ftBull Creek #1
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Low Hazard 13 ftRim Rock #1
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Low Hazard 15 ftBull Basin #1
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Low Hazard 20 ftJensen
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Low Hazard 7 ftFrequently Asked Questions
What is the hazard classification of Scales #3 (Upper)?
Scales #3 (Upper) 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 #3 (Upper)?
Scales #3 (Upper) is owned by CITY OF GRAND JUNCTION (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Scales #3 (Upper) built?
Scales #3 (Upper) was completed in 1969, making it 57 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 #3 (Upper)?
Scales #3 (Upper) 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 #3 (Upper)?
Scales #3 (Upper) has a dam height of 7 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 #3 (Upper) last inspected?
Scales #3 (Upper) was last inspected on July 23, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.