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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 12421200 SPOKANE RIVER AT TRENT BRIDGE AT TRENTWOOD, WA


Spokane County, Washington
Hydrologic Unit Code 17010305
Latitude  47°41'32", Longitude 117°14'03" NAD27
Drainage area 4,200.00  square miles
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
 
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)
11M1977-07-21 -- ----YesADMUSGS289 Unspecified NONE1Imported Channel 1UNSPother 289 UNSPUNSPUNSPunknUNSPUNSPUNSP
10M1973-09-19 -- ----YesADMUSGS335 Unspecified NONE1Imported Channel 1UNSPother 335 UNSPUNSPUNSPunknUNSPUNSPUNSP
9M1973-07-20 -- ----YesADMUSGS785 Unspecified NONE1Imported Channel 1UNSPother 785 UNSPUNSPUNSPunknUNSPUNSPUNSP
8M1973-05-30 -- ----YesADMUSGS3770 Unspecified NONE1Imported Channel 1UNSPother 3770 UNSPUNSPUNSPunknUNSPUNSPUNSP
7M1973-04-05 -- ----YesADMUSGS4530 Unspecified NONE1Imported Channel 1UNSPother 4530 UNSPUNSPUNSPunknUNSPUNSPUNSP
6M1973-02-08 -- ----YesADMUSGS5440 Unspecified NONE1Imported Channel 1UNSPother 5440 UNSPUNSPUNSPunknUNSPUNSPUNSP
5M1972-12-14 -- ----YesADMUSGS2880 Unspecified NONE1Imported Channel 1UNSPother 2880 UNSPUNSPUNSPunknUNSPUNSPUNSP
4M1972-10-31 -- ----YesADMUSGS1800 Unspecified NONE1Imported Channel 1UNSPother 1800 UNSPUNSPUNSPunknUNSPUNSPUNSP
3M1972-09-15 -- ----YesADMUSGS494 Unspecified NONE1Imported Channel 1UNSPother 494 UNSPUNSPUNSPunknUNSPUNSPUNSP
2M1972-09-13 -- ----YesADMUSGS1090 Unspecified NONE1Imported Channel 1UNSPother 1090 UNSPUNSPUNSPunknUNSPUNSPUNSP
1M1972-09-12 -- ----YesADMUSGS1080 Unspecified NONE1Imported Channel 1UNSPother 1080 UNSPUNSPUNSPunknUNSPUNSPUNSP