The G111 Control Structure, also known as the Lake Jackson Structure, is a state-owned flood control system located in Osceola, Florida.
Wind
Humidity
Managed by the South Florida Water Management District (SFWMD) and the Florida Department of Environmental Protection, this structure plays a crucial role in reducing flood risks in the area. Completed in 1994, the G111 Control Structure is an earth dam with a height of 14 feet and a hydraulic height of 12 feet, offering flood protection for the surrounding communities.
With a maximum storage capacity of 11,000 acre-feet and a normal storage capacity of 7,500 acre-feet, the G111 Control Structure covers a surface area of 830 acres and serves a drainage area of 21 square miles. Equipped with a controlled spillway and other controlled outlet gates, this structure can handle a maximum discharge of 300 cubic feet per second. Despite its low hazard potential, the G111 Control Structure is deemed to be at a very high risk, indicating the importance of ongoing risk management and monitoring efforts to ensure its effectiveness in mitigating flood risks and protecting the local environment.
As an essential component of the water resource management infrastructure in Florida, the G111 Control Structure stands as a testament to the state's commitment to flood risk reduction and environmental protection. With its strategic location along the Jackson Canal and its vital role in regulating water levels in Lake Jackson, this structure exemplifies the collaborative efforts of state agencies and stakeholders in safeguarding communities against the impacts of extreme weather events and climate change.
Year Completed |
1994 |
Dam Length |
220 |
Dam Height |
14 |
River Or Stream |
JACKSON CANAL |
Primary Dam Type |
Earth |
Surface Area |
830 |
Hydraulic Height |
12 |
Drainage Area |
21 |
Nid Storage |
11000 |
Structural Height |
22 |
Outlet Gates |
Other Controlled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
22 |
| Location | Reservations | Toilets |
|---|---|---|
Three Lakes Campsite
|
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River Ranch Property Owners Association
|
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Buster Island Primitive Camp Site
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