G93 Control Structure
Key Takeaway
G93 Control Structure is classified as high hazard in Florida. It was completed in 1953 and is 73 years old. Its primary use is flood risk reduction. 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 | 10 ft (taller than 13.4% in FL) |
| Dam Length | 150 ft |
| Dam Type | Concrete |
| Max Storage | 280 acre-ft |
| Normal Storage | 200 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 25 sq mi |
| Max Discharge | 640 cfs |
| Year Completed | 1953 (73 years old) |
| Year Modified | 1990 |
| NID ID | FL76008 |
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
MIAMI-DADE COUNTY DEPARTMENT OF ENVIRONMENTAL RESOURCES MANAGEMENT
State Government
Nearby Dams
S-25b
Miami-Dade, FL
Low Hazard 21 ftS-25
Miami-Dade, FL
Low Hazard 13 ftS-26
Miami-Dade, FL
Significant Hazard 25 ftS-22
Miami-Dade, FL
Low Hazard 23 ftS-121
Miami-Dade, FL
Significant Hazard 11 ftG-72
Miami-Dade, FL
Low Hazard 10 ftS-27
Miami-Dade, FL
Low Hazard 20 ftS-28
Miami-Dade, FL
Low Hazard 21 ftFrequently Asked Questions
What is the hazard classification of G93 Control Structure?
G93 Control Structure 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 G93 Control Structure?
G93 Control Structure is owned by MIAMI-DADE COUNTY DEPARTMENT OF ENVIRONMENTAL RESOURCES MANAGEMENT (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was G93 Control Structure built?
G93 Control Structure was completed in 1953, making it 73 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 G93 Control Structure?
G93 Control Structure serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is G93 Control Structure?
G93 Control Structure has a dam height of 10 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 G93 Control Structure last inspected?
G93 Control Structure was last inspected on January 13, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.