Jefferson
Key Takeaway
Jefferson is classified as low hazard in Wisconsin. It was completed in 1842 and is 184 years old. Its primary use is recreation.
Physical Details
| Dam Height | 11 ft (taller than 24.3% in WI) |
| Dam Length | 250 ft |
| Dam Type | Gravity |
| Max Storage | 650 acre-ft |
| Normal Storage | 160 acre-ft |
| Surface Area | 122 acres |
| Drainage Area | 1,074 sq mi |
| Max Discharge | 6,536 cfs |
| Year Completed | 1842 (184 years old) |
| NID ID | WI00631 |
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
City of Jefferson
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Jefferson?
Jefferson 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 Jefferson?
Jefferson is owned by City of Jefferson (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Jefferson built?
Jefferson was completed in 1842, making it 184 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 Jefferson?
Jefferson 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 Jefferson?
Jefferson has a dam height of 11 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 Jefferson last inspected?
Jefferson was last inspected on October 25, 2013. Inspection dates indicate when a formal review occurred, not the results of that inspection.