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USGS 14211720 WILLAMETTE RIVER AT PORTLAND, OR

PROVISIONAL DATA SUBJECT TO REVISION

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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  2014-10-31
00060 Discharge 2010-06-01  2014-10-31
00065 Gage height 2014-07-03  2014-10-31
00095 Specific cond at 25C 2009-01-22  2014-10-31
00055 Stream velocity 2014-07-03  2014-10-31
00300 Dissolved oxygen 2009-01-22  2014-10-31
00400 pH 2009-01-22  2014-10-31
63680 Turbidity, Form Neph 2009-01-22  2014-10-31
62361 Chlorophyll, in situ 2009-01-22  2014-10-31
72147 Sensor depth 2009-01-22  2014-10-31
95204 Cyanobacteria, IVF 2012-12-18  2014-10-31
99137 Nitrate, in situ 2013-02-15  2014-10-31

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


Temperature, water, degrees Celsius

Most recent instantaneous value: 12.85   10-31-2014  15:30 PDT
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Discharge, cubic feet per second

Most recent instantaneous value: 40,500   10-31-2014  17:45 PDT
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Daily discharge, cubic feet per second -- statistics for Oct 31 based on 41 years of record more
Min
(1988)
25th
percen-
tile
Median Mean 75th
percen-
tile
Most Recent
Instantaneous
Value Oct 31
Max
(1983)
8760 14100 18000 22000 27800 40500 51000


Gage height, feet

Most recent instantaneous value: 4.09   10-31-2014  17:45 PDT
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Most recent instantaneous value: 72   10-31-2014  15:30 PDT
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Stream velocity, feet per second

Most recent instantaneous value: 1.06   10-31-2014  17:45 PDT
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Dissolved oxygen, water, unfiltered, milligrams per liter

Most recent instantaneous value: 11.15   10-31-2014  15:30 PDT
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pH, water, unfiltered, field, standard units

Most recent instantaneous value: 7.46   10-31-2014  15:30 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: 6.9   10-31-2014  15:30 PDT
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Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter

Most recent instantaneous value: 2.6   10-31-2014  15:30 PDT
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Depth of sensor below water surface, feet

Most recent instantaneous value: 8.43   10-31-2014  15:30 PDT
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Phycocyanins (cyanobacteria), water, in situ, in vivo fluorescence, in vivo fluorescence units

Most recent instantaneous value: 0.06   10-31-2014  15:30 PDT
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Nitrate, water, in situ, milligrams per liter as nitrogen

Most recent instantaneous value: 0.504   10-31-2014  15:30 PDT
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