Panama No. 1 - South
Key Takeaway
Panama No. 1 - South is classified as significant hazard in Colorado. It was completed in 1904 and is 122 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 16 ft (taller than 23.3% in CO) |
| Dam Length | 1,200 ft |
| Dam Type | Earth |
| Max Storage | 7.0K acre-ft |
| Normal Storage | 4.7K acre-ft |
| Surface Area | 370 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 4,150 cfs |
| Year Completed | 1904 (122 years old) |
| NID ID | CO02821 |
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
BOULDER & WHITE ROCK DITCH & RESERVOIR CO. (GRANT,
Private
Nearby Dams
Panama No. 1 - East
Boulder, CO
Significant Hazard 46 ftPanama No. 1 - Northeast
Boulder, CO
Low Hazard 12 ftPanama No. 1 - Northwest
Boulder, CO
Low Hazard 7 ftGaynor
Boulder, CO
Significant Hazard 10 ftWwtp
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Low Hazard 14 ftPrince No. 1
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Significant Hazard 14 ftMarfell Lake No. 1
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Low Hazard 12 ftErie
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High Hazard 17 ftFrequently Asked Questions
What is the hazard classification of Panama No. 1 - South?
Panama No. 1 - South 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 Panama No. 1 - South?
Panama No. 1 - South is owned by BOULDER & WHITE ROCK DITCH & RESERVOIR CO. (GRANT, (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Panama No. 1 - South built?
Panama No. 1 - South was completed in 1904, making it 122 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 Panama No. 1 - South?
Panama No. 1 - South serves the following purposes: Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Panama No. 1 - South?
Panama No. 1 - South has a dam height of 16 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 Panama No. 1 - South last inspected?
Panama No. 1 - South was last inspected on August 10, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.