Prospect No. 1
Key Takeaway
Prospect No. 1 is classified as low hazard in Wyoming. It was completed in 1914 and is 112 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 20 ft (taller than 21.5% in WY) |
| Dam Length | 838 ft |
| Dam Type | Earth |
| Max Storage | 957 acre-ft |
| Normal Storage | 187 acre-ft |
| Surface Area | 45 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 390 cfs |
| Year Completed | 1914 (112 years old) |
| NID ID | WY01236 |
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
MAGAGNA BROTHERS INC.
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Prospect No. 1?
Prospect No. 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 Prospect No. 1?
Prospect No. 1 is owned by MAGAGNA BROTHERS INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Prospect No. 1 built?
Prospect No. 1 was completed in 1914, making it 112 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 Prospect No. 1?
Prospect No. 1 serves the following purposes: Irrigation, 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 Prospect No. 1?
Prospect No. 1 has a dam height of 20 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 Prospect No. 1 last inspected?
Prospect No. 1 was last inspected on July 18, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.