New Fork Lake
Key Takeaway
New Fork Lake is classified as high hazard in Wyoming. It was completed in 1925 and is 101 years old. Its primary use is irrigation. 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 | 37 ft (taller than 83.1% in WY) |
| Dam Length | 250 ft |
| Dam Type | Earth |
| Max Storage | 25.7K acre-ft |
| Normal Storage | 20.3K acre-ft |
| Surface Area | 1,416 acres |
| Drainage Area | 32 sq mi |
| Max Discharge | 2,260 cfs |
| Year Completed | 1925 (101 years old) |
| Year Modified | 1987 |
| NID ID | WY01232 |
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
NEW FORK LAKE IRRIGATION DISTRICT
Private
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Low Hazard 17 ftFrequently Asked Questions
What is the hazard classification of New Fork Lake?
New Fork Lake 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 New Fork Lake?
New Fork Lake is owned by NEW FORK LAKE IRRIGATION DISTRICT (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was New Fork Lake built?
New Fork Lake was completed in 1925, making it 101 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 New Fork Lake?
New Fork Lake 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 New Fork Lake?
New Fork Lake has a dam height of 37 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 New Fork Lake last inspected?
New Fork Lake was last inspected on August 10, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.