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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 14202500 TUALATIN RIVER NR GASTON,OREG.


Washington County, Oregon
Hydrologic Unit Code 17090010
Latitude  45°26'15", Longitude 123°10'05" NAD27
Drainage area 48.50  square miles
Gage datum 170.00 feet above NGVD29
Output formats
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HTML table without channel data
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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
 
Channel
Number
Channel
Name
Meas.
type
 
Stream
flow
method
 
Velocity
method
 
Channel
flow
(ft3/s)
Channel
width
(ft)
Channel
area
(ft2)
Channel
vel.
(ft/s)
Channel
stability
 
Channel
material
 
Channel
evenness
 
Long.
vel.
desc.
 
Horz.
vel.
desc.
 
Vert.
vel.
desc.
 
Channel
loc.
code
 
Channel
loc.
dist.(ft)
2951985-02-26 -- ----YesRTUSGS2075.16 Unspecified NONE1Imported Channel 1UNSPother 207 UNSPUNSPUNSPunknUNSPUNSPUNSP
2941984-12-18 -- ----YesRTUSGS2225.27 Unspecified NONE1Imported Channel 1UNSPother 222 UNSPUNSPUNSPunknUNSPUNSPUNSP
2931984-10-24 -- ----YesRTUSGS29.83.95 Unspecified NONE1Imported Channel 1UNSPother 29.8 UNSPUNSPUNSPunknUNSPUNSPUNSP
2921984-08-16 -- ----YesEOUSGS23.83.84 Unspecified NONE1Imported Channel 1UNSPother 23.8 UNSPUNSPUNSPunknUNSPUNSPUNSP
2911984-06-22 -- ----YesEOUSGS63.04.33 Unspecified NONE1Imported Channel 1UNSPother 63.0 UNSPUNSPUNSPunknUNSPUNSPUNSP
2901984-04-16 -- ----YesEOUSGS2545.40 Unspecified NONE1Imported Channel 1UNSPother 254 UNSPUNSPUNSPunknUNSPUNSPUNSP
2891984-02-02 -- ----YesEOUSGS1604.92 Unspecified NONE1Imported Channel 1UNSPother 160 UNSPUNSPUNSPunknUNSPUNSPUNSP
2881983-12-05 -- ----YesEOUSGS2145.17 Unspecified NONE1Imported Channel 1UNSPother 214 UNSPUNSPUNSPunknUNSPUNSPUNSP
2871983-10-04 -- ----YesEOUSGS20.73.78 Unspecified NONE1Imported Channel 1UNSPother 20.7 UNSPUNSPUNSPunknUNSPUNSPUNSP