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Streamflow Measurements for the Nation

! Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

USGS 12491500 TIETON RIVER AT TIETON DAM NEAR NACHES, WA


Yakima County, Washington
Hydrologic Unit Code 17030002
Latitude  46°39'46", Longitude 121°07'25" NAD27
Drainage area 187.00  square miles
Gage datum 2,680.99 feet above NGVD29
Output formats
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Meas.
Number
  Date       Time Time
Datum
Measurement
Used?
  Who Measuring
Agency
Stream
flow
(ft3/s)
Gage
Height
(ft)
GH
Change
(ft)
Meas.
Duration
(hr)
Meas.
Rated
  Control Flow
Adjust.
Code
 
2M1979-08-07 -- ----YesADMUSGS1460 Unspecified NONE
1M1979-06-06 -- ----YesADMUSGS919 Unspecified NONE