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Title: Manatee Protection Plan at Selected Navigation & Water Control Structures in Central and Southern Florida, Part I, Report and Environmental Assessment
Authors: United States. Army. Corps of Engineers. Jacksonville District
Keywords: Manatees
Environmental protection
Publisher: United States. Army. Corps of Engineers. Jacksonville District.
Abstract: This report is in partial response to authorization and appropriations provided in the Energy and Water Development Appropriation Act of 1994 (P.L. 103126). The results of engineering and environmental studies are presented for the implementation of the Manatee Protection Plan, Part I at twenty selected water control structures with vertical lift gates in Central and Southern Florida. As a response to recent manatee mortality trends associated with water control structures, the purpose of the project is to provide operational changes and implement the installation of a manatee protection system on spillway and lock vertical lift gates. The beneficial outcome of this project will be the reduction of risk, injury, and mortality of the manatee which is considered to be one of the most endangered species in Florida. The recommended plan is to implement the operational protocol for locks and spillways as contained in the Manatee Protection Plan for Water Control Structures and install a pressure sensitive device system on the water control structure gates. This device will immediately reverse the lowering of a vertical water control gate when an object is detected under a closing gate. The device consists of a series of pressure sensitive devices on the bottom of the water control gate which transmit a signal used to reverse the gate direction when resistance is encountered. When the gate sensors are activated by an object or manatee, the gate will open. At this time, a manatee will be able to travel under the gate. After the gate opens, it will fully close unless an object remains under the gate. Then, the opening process will repeat the cycle as the sensors are activated again. Due to this structural modification, manatees will be at a significantly less risk as they encounter locks and spillways. The project modification has a total estimated cost of $2,412,000.
Appears in Collections:Environmental Documents

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