R. Johnson Swt & Ec #1
Key Takeaway
R. Johnson Swt & Ec #1 is classified as low hazard in Colorado. It was completed in 1977 and is 49 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 31 ft (taller than 68.6% in CO) |
| Dam Length | 547 ft |
| Dam Type | Earth |
| Max Storage | 179 acre-ft |
| Normal Storage | 105 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 2,450 cfs |
| Year Completed | 1977 (49 years old) |
| NID ID | CO00415 |
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
ROBERT C.JOHNSON (VIRA JOHNSON)
Private
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Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of R. Johnson Swt & Ec #1?
R. Johnson Swt & Ec #1 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 R. Johnson Swt & Ec #1?
R. Johnson Swt & Ec #1 is owned by ROBERT C.JOHNSON (VIRA JOHNSON) (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was R. Johnson Swt & Ec #1 built?
R. Johnson Swt & Ec #1 was completed in 1977, making it 49 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 R. Johnson Swt & Ec #1?
R. Johnson Swt & Ec #1 serves the following purposes: Flood Risk Reduction, Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is R. Johnson Swt & Ec #1?
R. Johnson Swt & Ec #1 has a dam height of 31 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 R. Johnson Swt & Ec #1 last inspected?
R. Johnson Swt & Ec #1 was last inspected on March 5, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.