Will-O-B
Key Takeaway
Will-O-B is classified as low hazard in Minnesota. It was completed in 1990 and is 36 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 9 ft (taller than 25.1% in MN) |
| Dam Length | 700 ft |
| Dam Type | Earth |
| Max Storage | 340 acre-ft |
| Normal Storage | 12 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 900 cfs |
| Year Completed | 1990 (36 years old) |
| NID ID | MN00704 |
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 Alexandria
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Will-O-B?
Will-O-B 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 Will-O-B?
Will-O-B is owned by City of Alexandria (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Will-O-B built?
Will-O-B was completed in 1990, making it 36 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 Will-O-B?
Will-O-B serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Will-O-B?
Will-O-B has a dam height of 9 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 Will-O-B last inspected?
Will-O-B was last inspected on October 5, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.