Fall 2005

Sunbury Vertical Slot Serpentine Physical Model.
 

            

 

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Re-establishing Fish Populations:
The Sunbury Inflatable Dam

A state-of-the-art fish ladder design will enable fish to navigate a man-made barrier through a multi-million dollar, fully automated passage.  The structure, to be constructed on a low-head inflatable dam (Fabridam) on the Susquehanna River, is part of the Sunbury, PA, Flood Control Project.

Options

Our firm evaluated alternatives and determined that an 11-pool, serpentine vertical-slot fish passage structure was best suited for the 8-foot-high Sunbury Fabridam.  The hydraulic performance of the structure was also considered by constructing and testing a hydraulic model of the fishway and the Fabridam at Alden Research Laboratories. 

Details

Web Technology
A fish counting room will be constructed including a web camera to broadcast real-time images of Shad passing the counting window.

The fishway will use inflatable-type gates to provide and regulate the required attraction flow and internal hydraulic environment.  Additional attraction flow will be provided by modifying the existing inflatable dam to include a new 32-foot inflatable gate adjacent to the fishway.

Resources

To read more about Vertical Slot Design or for more information, contact Project Manager Paul Schweiger, PE, [ bio ].

 

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