USGS 13333000 GRANDE RONDE RIVER AT TROY, OR

PROVISIONAL DATA SUBJECT TO REVISION

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Station operated in cooperation with the U.S. Army Corps of Engineers Walla Walla District and Confederated Tribes of the Umatilla Indian Reservation (CTUIR).


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.
Boating safety tips
Available Parameters Available Period
  
2024-03-26  2025-09-29
1989-03-21  2025-09-29
2007-10-01  2025-09-29







 (7)
 
  -- or --

 

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

Discharge, cubic feet per second
Most recent instantaneous value: 496 09-29-2025   03:00 PDT
Graph of Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Sep 29 based on 80 water years of record more
Min
(1994)		 Most Recent
Instantaneous
Value Sep 29		 25th
percen-
tile		 Median Mean 75th
percen-
tile		 Max
(1959)
417 496 598 734 745 805 2060