Middle Piney Lake Dam
Key Takeaway
Middle Piney Lake Dam is classified as high hazard in Wyoming. It was completed in 1940 and is 86 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 | 24 ft (taller than 35.6% in WY) |
| Dam Length | 125 ft |
| Dam Type | Earth |
| Max Storage | 4.4K acre-ft |
| Normal Storage | 4.4K acre-ft |
| Surface Area | 200 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 1 cfs |
| Year Completed | 1940 (86 years old) |
| NID ID | WY01276 |
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
USDA FS
Federal Government
Frequently Asked Questions
What is the hazard classification of Middle Piney Lake Dam?
Middle Piney Lake Dam 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 Middle Piney Lake Dam?
Middle Piney Lake Dam is owned by USDA FS (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Middle Piney Lake Dam built?
Middle Piney Lake Dam was completed in 1940, making it 86 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 Middle Piney Lake Dam?
Middle Piney Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Middle Piney Lake Dam?
Middle Piney Lake Dam has a dam height of 24 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 Middle Piney Lake Dam last inspected?
Middle Piney Lake Dam was last inspected on October 11, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.