Morrow
Key Takeaway
Morrow is classified as high hazard in Michigan. It was completed in 1941 and is 85 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 | 26 ft (taller than 85.3% in MI) |
| Dam Length | 3,700 ft |
| Dam Type | Gravity |
| Max Storage | 6.0K acre-ft |
| Normal Storage | 6.0K acre-ft |
| Surface Area | 1,000 acres |
| Drainage Area | 991 sq mi |
| Max Discharge | 11,200 cfs |
| Year Completed | 1941 (85 years old) |
| NID ID | MI00146 |
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
STS HydroPower LLC
Private
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Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Morrow?
Morrow 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 Morrow?
Morrow is owned by STS HydroPower LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Morrow built?
Morrow was completed in 1941, making it 85 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 Morrow?
Morrow serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Morrow?
Morrow has a dam height of 26 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 Morrow last inspected?
Morrow was last inspected on June 28, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.