Sp-4 Dam
Key Takeaway
Sp-4 Dam is classified as low hazard in Mississippi. It was completed in 2004 and is 22 years old. Its primary use is tailings.
Physical Details
| Dam Height | 18 ft (taller than 50.7% in MS) |
| Dam Length | 2,695 ft |
| Dam Type | Earth |
| Max Storage | 1.1K acre-ft |
| Normal Storage | 563 acre-ft |
| Surface Area | 81 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 212 cfs |
| Year Completed | 2004 (22 years old) |
| NID ID | MS03651 |
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
ANDY JOHNSON, JR., JIMMY CARL JOHNSON, BETTY FAY BROOKS
Private
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What is the hazard classification of Sp-4 Dam?
Sp-4 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 Sp-4 Dam?
Sp-4 Dam is owned by ANDY JOHNSON, JR., JIMMY CARL JOHNSON, BETTY FAY BROOKS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sp-4 Dam built?
Sp-4 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 Sp-4 Dam?
Sp-4 Dam serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Sp-4 Dam?
Sp-4 Dam has a dam height of 18 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.