Blanchard Dam
Key Takeaway
Blanchard Dam is classified as low hazard in Iowa. It was completed in 2006 and is 20 years old. Its primary use is grade stabilization.
Physical Details
| Dam Height | 37 ft (taller than 77.4% in IA) |
| Dam Length | 660 ft |
| Dam Type | Earth |
| Max Storage | 70 acre-ft |
| Normal Storage | 44 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 110 cfs |
| Year Completed | 2006 (20 years old) |
| NID ID | IA04074 |
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
Donald Blanchard
Private
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What is the hazard classification of Blanchard Dam?
Blanchard Dam 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 Blanchard Dam?
Blanchard Dam is owned by Donald Blanchard (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Blanchard Dam built?
Blanchard Dam was completed in 2006, making it 20 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 Blanchard Dam?
Blanchard Dam serves the following purposes: Grade Stabilization. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Blanchard Dam?
Blanchard Dam has a dam height of 37 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.