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Fish Passage Decision Support System
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Go to the FPDSS's interactive map viewer.

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    • Welcome
    The Fish Passage Decision Support System (FPDSS) is an online application funded by the U.S. FWS Fish Passage Program. The FPDSS makes information about barriers to fish passage in the U.S. available to policy makers and the public.
    Barrier Removal Modeling
    Model the removal of a barrier to fish passage. The modeling operation can model fish passage both upstream and downstream of the barrier.
    Area Profile
    Create a profile report about a geographic area. Information returned includes maps of the area, barrier summary information, and hydrology.
    Featured Fish Passage Program Project
    Project Name:Geronimo's Cave Irrigation Diversion, Arizona
    FWS Region:SouthWest
    Year Completed:2000
    Description:
    The East Fork of the White River, a tributary of the Salt River, is located on the Fort Apache Indian Reservation, home of the White Mountain Apache Tribe. The Tribe currently manages the river for the protection of sensitive, federally ...
    Benefits:
    Preliminary findings from seasonal evaluations suggest that the redesign of Geronimo's Cave diversion has maintained natural channel morphology. Particular signs of improvement include: less dramatic change in channel gradient, no ...
    		Image from project Geronimo's Cave Irrigation Diversion, Arizona