USGS 14203500 TUALATIN RIVER NEAR DILLEY, OR

PROVISIONAL DATA SUBJECT TO REVISION

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Station operated in cooperation with the Bureau of Reclamation and the U.S. Army Corps of Engineers.

NOTE: River forecasts and additional data can be obtained at the 
National Weather Service's Advanced Hydrologic Prediction Services web page.

NOTE: The most current shifted rating for this site can be found at USGS Rating Depot website.
Available Parameters Available Period
  
2016-03-26  2026-10-14
1986-10-01  2026-10-14
2007-10-01  2026-10-14
2016-03-26  2026-10-14
2020-02-19  2026-10-14
2016-03-26  2026-10-14
2023-10-14  2026-10-14
2023-10-17  2026-10-14
2023-10-17  2026-10-14
2016-03-26  2026-10-14







 (7)
 
  -- or --

 

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

Discharge, cubic feet per second
Most recent instantaneous value: 178 10-14-2026   12:00 PDT
Graph of Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Oct 14 based on 87 water years of record more
Min
(1953)		 25th
percen-
tile		 Median Mean 75th
percen-
tile		 Most Recent
Instantaneous
Value Oct 14		 Max
(2017)
1.90 36 106 113 146 178 518

Gage height, feet
Most recent instantaneous value: 11.15 10-14-2026   12:00 PDT
Graph of Gage height, feet

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