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USGS 14211720 WILLAMETTE RIVER AT PORTLAND, OR

  Stream Site

DESCRIPTION:
Latitude 45°31'03",   Longitude 122°40'09"   NAD83
Multnomah County, Oregon, Hydrologic Unit 17090012
Drainage area: 11,200 square miles
Datum of gage: 1.55 feet above   NGVD29.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    1988-10-01  2021-03-02  
 Daily Data
    Temperature, water, degrees Celsius  1975-11-07  2021-03-01  21592 
    Discharge, cubic feet per second  1972-10-01  2021-02-28  17677 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1976-10-01  2021-03-01  17835 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009-01-22  2021-03-01  13139 
    pH, water, unfiltered, field, standard units  2009-01-22  2021-03-01  13074 
    Dissolved organic matter fluorescence (fDOM), water, in situ, concentration estimated from reference material, micrograms per liter as quinine sulfate equivalents (QSE)  2018-03-03  2021-03-01  3276 
    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter  2009-01-22  2021-03-01  6189 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2009-01-22  2021-03-01  13083 
    Discharge, tidally filtered, cubic feet per second  2006-09-30  2021-02-27  5249 
 Daily Statistics 
    Temperature, water, degrees Celsius  2001-11-02  2020-10-07 5672 
    Discharge, cubic feet per second  1972-10-01  2019-10-30 17196 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1976-10-01  2020-10-07 6868 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009-01-22  2020-10-07 4233 
    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter  2009-01-22  2011-09-29 971 
    Discharge, tidally filtered, cubic feet per second  2006-09-30  2019-10-30 4779 
 Monthly Statistics 
    Temperature, water, degrees Celsius  2001-11  2020-10  
    Discharge, cubic feet per second  1972-10  2019-10  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1976-10  2020-10  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009-01  2020-10  
    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter  2009-01  2011-09  
    Discharge, tidally filtered, cubic feet per second  2006-09  2019-10  
 Annual Statistics 
    Temperature, water, degrees Celsius  2002  2021  
    Discharge, cubic feet per second  1973  2020  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1977  2021  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009  2021  
    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter  2009  2011  
    Discharge, tidally filtered, cubic feet per second  2006  2020  
 Peak streamflow 1894-06-07  2019-04-12  49 
 Field measurements 1987-11-20  2021-01-14  226 
 Field/Lab water-quality samples 1974-10-25  2021-02-02  855 
 Water-Year Summary 2006  2020  15 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Oregon Water Science Center
Email questions about this site to Oregon Water Science Center Water-Data Inquiries