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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  2018-06-23  
 Daily Data
    Temperature, water, degrees Celsius  1975-11-07  2018-06-23  18648 
    Discharge, cubic feet per second  1972-10-01  2018-06-22  16700 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1977-09-30  2018-06-22  17454 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009-01-22  2018-06-23  10206 
    pH, water, unfiltered, field, standard units  2009-01-22  2018-06-22  10134 
    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter  2009-01-22  2018-06-22  6171 
    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  2018-06-22  10143 
    Discharge, tidally filtered, cubic feet per second  2006-09-30  2018-06-19  4218 
 Daily Statistics 
    Temperature, water, degrees Celsius  2001-11-03  2016-10-22 4227 
    Discharge, cubic feet per second  1972-10-01  2018-01-11 16539 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1977-09-30  2016-10-22 5205 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009-01-22  2016-10-22 2791 
    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  2018-01-11 4122 
 Monthly Statistics 
    Temperature, water, degrees Celsius  2001-11  2016-10  
    Discharge, cubic feet per second  1972-10  2018-01  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1977-09  2016-10  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009-01  2016-10  
    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  2018-01  
 Annual Statistics 
    Temperature, water, degrees Celsius  2002  2017  
    Discharge, cubic feet per second  1973  2018  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1977  2017  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009  2017  
    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter  2009  2011  
    Discharge, tidally filtered, cubic feet per second  2006  2018  
 Peak streamflow 1894-06-07  2017-02-10  47 
 Field measurements 1987-11-20  2018-05-31  191 
 Field/Lab water-quality samples 1974-10-25  2018-06-05  721 
 Water-Year Summary 2006  2017  12 
 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