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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:Chatanika Dam, Alaska
    FWS Region:Alaska
    Year Completed:2002
    Description:
    In place for over 75 years, the abandoned Fairbanks Exploration Dam on the Chatanika River, a tributary of the Yukon River, blocks fish from historic spawning and rearing habitat in the upper reaches of the Chatanika River .
    Benefits:
    Chinook and chum salmon, Arctic grayling, and resident fish species were provided access to over 100 miles of historic spawning and rearing habitat.
    		Image from project Chatanika Dam, Alaska