• South Sammamish Area Drainage Details

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    Updated: July 2017

    The City of Bellevue does not guarantee that the information on this map is accurate or complete. This data is provided on an "as is" basis and disclaims all warranties.

    Please check out the PDF fact sheet version

    Land Characteristics

    Basin Area
    439Total Acres
    City Area
    2.0%
    Drainage Jurisdiction(s)
    Bellevue: 96.0%
    Beaux Arts: 0.0%
    Clyde Hill: 0.0%
    Issaquah: 4.2%
    King County: 0.0%
    Kirkland: 0.0%
    Medina: 0.0%
    Newcastle: 0.0%
    Redmond: 0.0%
    Renton: 0.0%
    Lowest Elevation
    31 Ft
    Highest Elevation
    733 Ft
    Total Length of Open Channel
    1.8 Miles
    Total Length of Storm Drainage Pipes:
    8.3 Miles

    Salmon Present in the Basin

    • Chinook*+ (Lake only)
    • Coho+ (Lake only)
    • Kokanee+ (Lake only)
    • Sockeye (Lake only)
    • Rainbow & Cutthroat Trout
    • Steelhead (Lake only)

    * Listed Federal Endangered Species
    + City Species of Local Importance (Bellevue Land Use Code 20.25H.150A)

    Population

    The population density in Bellevue ranges from 1,344 to 9,851 people per square mile.

    Basin Population (2016)
    2,039
    % of all Basins
    1.4%
    Basin Population Density
    2,970 People per Square Mile

    Land Use

      Entire Basin Within Bellevue
    Public Right of Way 26.8% 30.1%
    Commercial/Office 0.2% 0.2%
    Industrial 0.0% 0.0%
    Institutional/Government 3.0% 3.0%
    Mixed Use/Misc 13.7% 13.7%
    Multi-Family 0.0% 0.0%
    Open Space/Park 3.2% 3.2%
    Single Family Residential 47.8% 45.2%
    Unknown 5.2% 4.5%

    Land Cover

      Entire Basin Within Bellevue
    Impervious 33.7% 33.7%
    Tree Canopy 47.8% 48.0%
    Impervious in 100 Ft Stream Buffer 18.3% 18.3%
    Tree Canopy in 100 Ft Stream Buffer 73.6% 73.6%