Denny Lake
Key Takeaway
Denny Lake is classified as low hazard in Colorado. It was completed in 1909 and is 117 years old. Its primary use is water supply.
Physical Details
| Dam Height | 8 ft (taller than 1.3% in CO) |
| Dam Length | 675 ft |
| Dam Type | Earth |
| Max Storage | 168 acre-ft |
| Normal Storage | 34 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 89 cfs |
| Year Completed | 1909 (117 years old) |
| Year Modified | 2000 |
| NID ID | CO02162 |
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 CORTEZ (TORRES, KEN)
Local Government
Nearby Dams
Totten
Montezuma, CO
High Hazard 30 ftMcgechie
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Significant Hazard 30 ftCortez #1
Montezuma, CO
Significant Hazard 38 ftGrimes
Montezuma, CO
Low Hazard 21 ftNarraguinnep - Main Dam
Montezuma, CO
High Hazard 100 ftA. M. Puett
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Significant Hazard 43 ftNarraguinnep - Dam 2
Montezuma, CO
High Hazard 19 ftE. G. Merritt
Montezuma, CO
Low Hazard 17 ftFrequently Asked Questions
What is the hazard classification of Denny Lake?
Denny Lake 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 Denny Lake?
Denny Lake is owned by CITY OF CORTEZ (TORRES, KEN) (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Denny Lake built?
Denny Lake was completed in 1909, making it 117 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 Denny Lake?
Denny Lake serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Denny Lake?
Denny Lake has a dam height of 8 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 Denny Lake last inspected?
Denny Lake was last inspected on June 27, 1979. Inspection dates indicate when a formal review occurred, not the results of that inspection.