Thunder Bay Lake Dam
Key Takeaway
Thunder Bay Lake Dam is classified as significant hazard in Iowa. It was completed in 2010 and is 16 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 | 19 ft (taller than 6.5% in IA) |
| Dam Type | Earth |
| Max Storage | 119 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,835 cfs |
| Year Completed | 2010 (16 years old) |
| NID ID | IA04174 |
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
Prairie Crossing Investments Inc
Private
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Low Hazard 27 ftFrequently Asked Questions
What is the hazard classification of Thunder Bay Lake Dam?
Thunder Bay Lake Dam 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 Thunder Bay Lake Dam?
Thunder Bay Lake Dam is owned by Prairie Crossing Investments Inc (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Thunder Bay Lake Dam built?
Thunder Bay Lake Dam was completed in 2010, making it 16 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 Thunder Bay Lake Dam?
Thunder Bay Lake Dam 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 Thunder Bay Lake Dam?
Thunder Bay Lake Dam has a dam height of 19 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.