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    Annual Water Data Reports for Oregon Water Years 2002-13 (click here)

    USGS 14211720 WILLAMETTE RIVER AT PORTLAND, OR

    PROVISIONAL DATA SUBJECT TO REVISION

    Click to hidestation-specific text

    NOTE:This velocity-discharge rating is considered preliminary at discharges below 20,000 cfs, further development of the rating is needed.

    Station operated in cooperation with the U.S. Army Corps of Engineers and funded by the U.S. Geological Survey National Streamflow Information Program (NSIP).

    Additional station information.
    
    
    
    
    
    NOTE: River forecasts and additional data can be obtained at the 
    National Weather Service's Advanced Hydrologic Prediction Services web page.
    
    
    
    Boating safety tips
    Available Parameters Available Period
    All 12 Available Parameters for this site
      
    00010 Temperature, water 2009-01-22  2014-09-02
    00060 Discharge 2010-06-01  2014-09-02
    00065 Gage height 2014-05-06  2014-09-02
    00095 Specific cond at 25C 2009-01-22  2014-09-02
    00055 Stream velocity 2014-05-06  2014-09-02
    00300 Dissolved oxygen 2009-01-22  2014-09-02
    00400 pH 2009-01-22  2014-09-02
    63680 Turbidity, Form Neph 2009-01-22  2014-09-02
    62361 Chlorophyll, in situ 2009-01-22  2014-09-02
    72147 Sensor depth 2009-01-22  2014-09-02
    95204 Cyanobacteria, IVF 2012-12-18  2014-09-02
    99137 Nitrate, in situ 2013-02-15  2014-09-02

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    Days  (7)
     

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    End date
     

    Summary of all available data for this site
    Instantaneous-data availability statement


    Temperature, water, degrees Celsius

    Most recent instantaneous value: 21.70   09-02-2014  21:30 PDT
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    Discharge, cubic feet per second

    Most recent instantaneous value: -23,800   09-02-2014  20:45 PDT
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    Daily discharge, cubic feet per second -- statistics for Sep 3 based on 41 years of record more
    Most Recent
    Instantaneous
    Value Sep 3
    Min
    (1973)
    25th
    percen-
    tile
    Median Mean 75th
    percen-
    tile
    Max
    (1983)
    -- unavailable -- 6360 7990 9000 9240 10100 14000


    Gage height, feet

    Most recent instantaneous value: 2.11   09-02-2014  20:45 PDT
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    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

    Most recent instantaneous value: 82   09-02-2014  21:30 PDT
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    Stream velocity, feet per second

    Most recent instantaneous value: -0.65   09-02-2014  20:45 PDT
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    Dissolved oxygen, water, unfiltered, milligrams per liter

    Most recent instantaneous value: 8.04   09-02-2014  21:30 PDT
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    pH, water, unfiltered, field, standard units

    Most recent instantaneous value: 7.44   09-02-2014  21:30 PDT
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    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)

    Most recent instantaneous value: 1.3   09-02-2014  21:30 PDT
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    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter

    Most recent instantaneous value: 3.3   09-02-2014  21:30 PDT
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    Depth of sensor below water surface, feet

    Most recent instantaneous value: 7.41   09-02-2014  21:30 PDT
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    Phycocyanins (cyanobacteria), water, in situ, in vivo fluorescence, in vivo fluorescence units

    Most recent instantaneous value: 0.00   09-02-2014  21:30 PDT
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    Nitrate, water, in situ, milligrams per liter as nitrogen

    Most recent instantaneous value: 0.270   09-02-2014  21:30 PDT
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