Ninth Street
Key Takeaway
Ninth Street is classified as high hazard in Michigan. It was completed in 1910 and is 116 years old. Its primary use is hydroelectric. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 24 ft (taller than 81.6% in MI) |
| Dam Length | 1,340 ft |
| Dam Type | Gravity |
| Max Storage | 6.0K acre-ft |
| Normal Storage | 6.0K acre-ft |
| Surface Area | 700 acres |
| Drainage Area | 1,275 sq mi |
| Max Discharge | 20,593 cfs |
| Year Completed | 1910 (116 years old) |
| NID ID | MI00188 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Eagle Creek Renewable Energies, LLC Parent Org (CRO)
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Ninth Street?
Ninth Street is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Ninth Street?
Ninth Street is owned by Eagle Creek Renewable Energies, LLC Parent Org (CRO) (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Ninth Street built?
Ninth Street was completed in 1910, making it 116 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 Ninth Street?
Ninth Street 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 Ninth Street?
Ninth Street has a dam height of 24 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 Ninth Street last inspected?
Ninth Street was last inspected on August 24, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.