Ketner
Key Takeaway
Ketner is classified as high hazard in Colorado. It was completed in 1961 and is 65 years old. Its primary use is recreation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 30 ft (taller than 65.6% in CO) |
| Dam Length | 2,360 ft |
| Dam Type | Earth |
| Max Storage | 434 acre-ft |
| Normal Storage | 166 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 3,300 cfs |
| Year Completed | 1961 (65 years old) |
| NID ID | CO00093 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
THOMPSON, SPENCER
Private
Nearby Dams
Standley Lake
Jefferson, CO
High Hazard 113 ftPomona Lake No. 1
Jefferson, CO
Low Hazard 6 ftPomona No. 2 and No. 3
Jefferson, CO
Significant Hazard 11 ftGreat Western
Broomfield, CO
High Hazard 70 ftMower
Jefferson, CO
Low Hazard 11 ftWoman Creek
Jefferson, CO
High Hazard 50 ftJ. J. Huddart No. 1
Broomfield, CO
Low Hazard 20 ftLast Chance No. 1
Jefferson, CO
Low Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Ketner?
Ketner is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Ketner?
Ketner is owned by THOMPSON, SPENCER (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Ketner built?
Ketner was completed in 1961, making it 65 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 Ketner?
Ketner serves the following purposes: Recreation, Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Ketner?
Ketner has a dam height of 30 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 Ketner last inspected?
Ketner was last inspected on May 12, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.