Grindstone-Lost-Muddy Watershed Dam A-26
Key Takeaway
Grindstone-Lost-Muddy Watershed Dam A-26 is classified as high hazard in Missouri. It was completed in 1969 and is 57 years old. Its primary use is grade stabilization. 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 | 25 ft (taller than 23.5% in MO) |
| Dam Length | 615 ft |
| Dam Type | Earth |
| Max Storage | 78 acre-ft |
| Normal Storage | 37 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 32 sq mi |
| Max Discharge | 174 cfs |
| Year Completed | 1969 (57 years old) |
| NID ID | MO50089 |
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
GRNSTN-LST-MDY WRSD SBDS
Local Government
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High Hazard 38 ftFrequently Asked Questions
What is the hazard classification of Grindstone-Lost-Muddy Watershed Dam A-26?
Grindstone-Lost-Muddy Watershed Dam A-26 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 Grindstone-Lost-Muddy Watershed Dam A-26?
Grindstone-Lost-Muddy Watershed Dam A-26 is owned by GRNSTN-LST-MDY WRSD SBDS (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Grindstone-Lost-Muddy Watershed Dam A-26 built?
Grindstone-Lost-Muddy Watershed Dam A-26 was completed in 1969, making it 57 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 Grindstone-Lost-Muddy Watershed Dam A-26?
Grindstone-Lost-Muddy Watershed Dam A-26 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 Grindstone-Lost-Muddy Watershed Dam A-26?
Grindstone-Lost-Muddy Watershed Dam A-26 has a dam height of 25 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.