Little Thornapple River
Key Takeaway
Little Thornapple River is classified as low hazard in Wisconsin. It was completed in 1950 and is 76 years old. Its primary use is recreation.
Physical Details
| Dam Height | 13 ft (taller than 35.2% in WI) |
| Dam Length | 850 ft |
| Dam Type | Gravity |
| Max Storage | 2.0K acre-ft |
| Normal Storage | 700 acre-ft |
| Surface Area | 232 acres |
| Drainage Area | 13 sq mi |
| Max Discharge | 2,416 cfs |
| Year Completed | 1950 (76 years old) |
| NID ID | WI00300 |
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
Rusk County
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Little Thornapple River?
Little Thornapple River 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 Thornapple River?
Little Thornapple River is owned by Rusk County (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Little Thornapple River built?
Little Thornapple River was completed in 1950, making it 76 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 Thornapple River?
Little Thornapple River 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 Little Thornapple River?
Little Thornapple River has a dam height of 13 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 Little Thornapple River last inspected?
Little Thornapple River was last inspected on May 29, 2014. Inspection dates indicate when a formal review occurred, not the results of that inspection.