Phelps
Key Takeaway
Phelps is classified as low hazard in Wyoming. It was completed in 1911 and is 115 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 28 ft (taller than 55% in WY) |
| Dam Length | 730 ft |
| Dam Type | Earth |
| Max Storage | 138 acre-ft |
| Normal Storage | 96 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1911 (115 years old) |
| NID ID | WY00045 |
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
THE GITTAWAY RANCH
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Phelps?
Phelps 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 Phelps?
Phelps is owned by THE GITTAWAY RANCH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Phelps built?
Phelps was completed in 1911, making it 115 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 Phelps?
Phelps 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 Phelps?
Phelps has a dam height of 28 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 Phelps last inspected?
Phelps was last inspected on April 17, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.