• Coal Creek Basin Details

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    Lake Washington Watershed (WRIA 8) / State Stream #08-0268

    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.

    BasinFactSheet_COAL CREEK.JPG

    Please check out the PDF fact sheet version

    Land Characteristics

    Basin Area
    3,978 Total Acres
    City Area
    11.1%
    Drainage Jurisdiction(s)
    Bellevue: 59.9%
    Beaux Arts: 0.0%
    Clyde Hill: 0.0%
    Issaquah: 0.0%
    King County: 26.8%
    Kirkland: 0.0%
    Medina: 0.0%
    Newcastle: 13.4%
    Redmond: 0.0%
    Renton: 0.0%
    Lowest Elevation
    18 Ft
    Highest Elevation
    1,563 Ft
    Total Length of Open Channel
    18.4 Miles
    Total Length of Storm Drainage Pipes:
    53.9 Miles

    Salmon Present in the Basin

    • Chinook*+
    • Coho+
    • Sockeye
    • Rainbow & Cutthroat Trout
    • Steelhead

    * 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)
    12,996
    % of all Basins
    8.6%
    Basin Population Density
    2,091 People per Square Mile

    Land Use

      Entire Basin Within Bellevue
    Public Right of Way 10.0% 49.2%
    Commercial/Office 8.0% 0.2%
    Industrial 1.3% 0.0%
    Institutional/Government 1.7% 1.3%
    Mixed Use/Misc 4.4% 3.6%
    Multi-Family 0.3% 0.0%
    Open Space/Park 40.8% 13.5%
    Single Family Residential 30.6% 29.5%
    Unknown 2.9% 2.6%

    Land Cover

      Entire Basin Within Bellevue
    Impervious 20.9% 30.2%
    Tree Canopy 58.9% 47.5%
    Impervious in 100 Ft Stream Buffer 8.3% 7.3%
    Tree Canopy in 100 Ft Stream Buffer 85.7% 59.0%