Thorney Hill Dam
Key Takeaway
Thorney Hill Dam is classified as low hazard in Missouri. It was completed in 1970 and is 56 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 30 ft (taller than 63.5% in MO) |
| Dam Type | Earth |
| Max Storage | 128 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 135 sq mi |
| Year Completed | 1970 (56 years old) |
| NID ID | MO30931 |
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
MARGARET DALLER
Private
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High Hazard 48 ftFrequently Asked Questions
What is the hazard classification of Thorney Hill Dam?
Thorney Hill Dam 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 Thorney Hill Dam?
Thorney Hill Dam is owned by MARGARET DALLER (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Thorney Hill Dam built?
Thorney Hill Dam was completed in 1970, making it 56 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 Thorney Hill Dam?
Thorney Hill Dam serves the following purposes: Flood Risk Reduction, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Thorney Hill Dam?
Thorney Hill Dam has a dam height of 30 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.