Lake Thornhill Dam
Key Takeaway
Lake Thornhill Dam is classified as low hazard in Mississippi. It was completed in 2004 and is 22 years old. Its primary use is recreation.
Physical Details
| Dam Height | 24 ft (taller than 75.8% in MS) |
| Dam Length | 1,450 ft |
| Dam Type | Earth |
| Max Storage | 440 acre-ft |
| Normal Storage | 275 acre-ft |
| Surface Area | 55 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,868 cfs |
| Year Completed | 2004 (22 years old) |
| NID ID | MS03610 |
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
SIDCO, INC.
Private
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What is the hazard classification of Lake Thornhill Dam?
Lake Thornhill 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 Lake Thornhill Dam?
Lake Thornhill Dam is owned by SIDCO, INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Thornhill Dam built?
Lake Thornhill Dam was completed in 2004, making it 22 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 Lake Thornhill Dam?
Lake Thornhill Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Thornhill Dam?
Lake Thornhill Dam 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 Lake Thornhill Dam last inspected?
Lake Thornhill Dam was last inspected on January 27, 2004. Inspection dates indicate when a formal review occurred, not the results of that inspection.