Blanchard
Key Takeaway
Blanchard is classified as low hazard in Minnesota. It was completed in 1925 and is 101 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 46 ft (taller than 95.4% in MN) |
| Dam Length | 4,451 ft |
| Dam Type | Earth |
| Max Storage | 16.4K acre-ft |
| Normal Storage | 16.1K acre-ft |
| Surface Area | 1,152 acres |
| Drainage Area | 11,600 sq mi |
| Max Discharge | 72,000 cfs |
| Year Completed | 1925 (101 years old) |
| NID ID | MN00599 |
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
Allete, Inc.
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Blanchard?
Blanchard 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?
Blanchard is owned by Allete, Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Blanchard built?
Blanchard was completed in 1925, making it 101 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?
Blanchard serves the following purposes: Hydroelectric, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Blanchard?
Blanchard has a dam height of 46 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 Blanchard last inspected?
Blanchard was last inspected on June 27, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.