North Ottawa
Key Takeaway
North Ottawa is classified as significant hazard in Minnesota. It was completed in 2008 and is 18 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 12 ft (taller than 41.3% in MN) |
| Dam Type | Earth |
| Max Storage | 23.8K acre-ft |
| Normal Storage | 4.0K acre-ft |
| Drainage Area | 37 sq mi |
| Year Completed | 2008 (18 years old) |
| NID ID | MN01453 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
WD of Bois de Sioux
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of North Ottawa?
North Ottawa is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates North Ottawa?
North Ottawa is owned by WD of Bois de Sioux (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was North Ottawa built?
North Ottawa was completed in 2008, making it 18 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 North Ottawa?
North Ottawa 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 North Ottawa?
North Ottawa has a dam height of 12 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 North Ottawa last inspected?
North Ottawa was last inspected on August 11, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.