Little Yellow 18
Key Takeaway
Little Yellow 18 is classified as low hazard in Wisconsin. It was completed in 1936 and is 90 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 8 ft (taller than 5.5% in WI) |
| Dam Length | 4,670 ft |
| Dam Type | Gravity |
| Max Storage | 840 acre-ft |
| Normal Storage | 480 acre-ft |
| Surface Area | 180 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 400 cfs |
| Year Completed | 1936 (90 years old) |
| NID ID | WI00576 |
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
U.S. Department of the Interior
Federal Government
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Low Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Little Yellow 18?
Little Yellow 18 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 Little Yellow 18?
Little Yellow 18 is owned by U.S. Department of the Interior (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Little Yellow 18 built?
Little Yellow 18 was completed in 1936, making it 90 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 Little Yellow 18?
Little Yellow 18 serves the following purposes: Irrigation, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Little Yellow 18?
Little Yellow 18 has a dam height of 8 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.