Sylvan Dike No. 2
Key Takeaway
Sylvan Dike No. 2 is classified as low hazard in Minnesota. It was completed in 1913 and is 113 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 8 ft (taller than 16.2% in MN) |
| Dam Length | 830 ft |
| Dam Type | Earth |
| Normal Storage | 9.2K acre-ft |
| Surface Area | 1,280 acres |
| Drainage Area | 3,575 sq mi |
| Year Completed | 1913 (113 years old) |
| NID ID | MN00601 |
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 Sylvan Dike No. 2?
Sylvan Dike No. 2 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 Sylvan Dike No. 2?
Sylvan Dike No. 2 is owned by Allete, Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sylvan Dike No. 2 built?
Sylvan Dike No. 2 was completed in 1913, making it 113 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 Sylvan Dike No. 2?
Sylvan Dike No. 2 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 Sylvan Dike No. 2?
Sylvan Dike No. 2 has a dam height of 8 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 Sylvan Dike No. 2 last inspected?
Sylvan Dike No. 2 was last inspected on September 20, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.