Walla Walla Gauge

  • NOTE: The Ives Island, Hamilton Creek and Walla Walla gauges

    are not functioning at this time. Historical data are available.

Select Desired Graph Query or read Definition of Terms

1. Gauge Height (in feet)
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2. Temperature (Celsius)
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The water level and multi-parameter sensors were installed at Harris Park Bridge to monitor basic physical information affecting aquatic inhabitants of the Walla Walla basin. Of primary concern are bull trout, which are sensitive to increases in water temperature. Temperature, dissolved oxygen, PH and conductivity are commonly used to determine water quality and may be used in productivity modeling. Temperature data from this site may be used in conjunction with TMDL models(https://www.ecy.wa.gov/programs/eap/models.html). The location of the stream gage is unique in that the area upstream from the Harris Park Bridge is relatively un-impacted with most of the land falling within the Umatilla National Forest, whereas downstream from the Harris Park bridge land development increases along with water diversion. We believe these data will serve as a baseline and will be useful to area management agencies, local organizations, irrigation districts and the general public.


  • NOTE - Effective 09/22/06 the Dissolved Oxygen, Ph, and Electrical Conductivity sensors have been removed.
  • This data is provisional.
  • The relationship between stage (elevation) and discharge (cfs), i.e. the rating curve,  is currently being developed. 
  • These data are downloaded directly from a USFWS gauge on the South Fork of the Walla Walla River at Harris Bridge.
  • This gauge is located at: Lat N 45°50'12, Long W 118°10'5. It is located in province: Columbia Plateau (4), subbasin: Walla Walla (4J) and Hydrologic Unit Code (HUC 4) 17070102 - Walla Walla Vertical datum used to calculate mean sea level for both gauges is NAVD88. The elevation offset is 1974.218.
  • The data on the graph is posted in 3-hour increments, for visual clarity.
  • Occasionally, these gauges will experience technical difficulties which may result in missing data.  Please be assured this is generally the problem if records are missing and the FPC is aware of the problem and will update the files as soon as the stations are operational. Don't hesitate to contact FPC data staff if you have any questions or concerns.

Page last updated on: February 10, 2012

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