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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 452223122360100 CLACKAMAS R. @ 99E BR.


Clackamas County, Oregon
Hydrologic Unit Code 17090011
Latitude  45°22'23", Longitude 122°36'01" NAD27
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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)
31998-09-01 08:05PDTYesDOCUSGS2090 FairUnspecifedNONE1Imported Channel 1UNSPQSCMMVPAA209014518001.16UNSPUNSPUNSPunknUNSPUNSPUNSP
21998-07-07 08:10PDTYesREWUSGS1870 UnspecifiedClearNONE1Imported Channel 1BRUSQSCMMVPAA187016823300.80UNSPUNSPUNSPunknUNSPUNSPUNSP
11998-05-09 00:01PDTYesxxxUSGS2940 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPother 2940 UNSPUNSPUNSPunknUNSPUNSPUNSP