S-11
Key Takeaway
S-11 is classified as significant hazard in Florida. It was completed in 1965 and is 61 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 9 ft (taller than 10.3% in FL) |
| Dam Length | 64 ft |
| Dam Type | Other |
| Max Storage | 1.3K acre-ft |
| Normal Storage | 1.2K acre-ft |
| Surface Area | 93 acres |
| Drainage Area | 20 sq mi |
| Max Discharge | 600 cfs |
| Year Completed | 1965 (61 years old) |
| NID ID | FL77000 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
SWFWMD
State Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of S-11?
S-11 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates S-11?
S-11 is owned by SWFWMD (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was S-11 built?
S-11 was completed in 1965, making it 61 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 S-11?
S-11 serves the following purposes: Water Supply, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is S-11?
S-11 has a dam height of 9 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 S-11 last inspected?
S-11 was last inspected on May 19, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.