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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 452743122365400 JOHNSON CREEK AT 45TH AVENUE, PORTLAND, OR
Multnomah County, Oregon
Hydrologic Unit Code 17090012
Latitude  45°27'43", Longitude 122°36'54" NAD27
Drainage area 46.9  square miles
Gage datum 100 feet above NGVD29
Output formats
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HTML table without channel data
Tab-separated data with 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)
112023-03-14 13:53:30PDTYesGDLUSGS327 Poor NONE11BRDSQADCPVADCP32741.985.53.82FIRMGRVLUNEVPULSUNEVNSTDDNST50.00
102023-03-10 13:01:46PSTYesMCY/GDLUSGS130 Poor NONE1MainCWAYQADCPVADCP13024.146.02.81FIRMCBLSEVENSTDYEVENUNKNATGA0.00
92009-09-25 10:15PDTYesKKLUSGS2.28 GoodUnspecifedNONE1Imported Channel 1WADEQSCMMVPYG2.2816.45.880.39UNSPUNSPUNSPunknUNSPUNSPUNSP
82006-10-02 17:00PDTYesKKLUSGS2.62 Fair NONE1Imported Channel 1WADEunspeunkno2.6226.012.90.20UNSPUNSPUNSPunknUNSPUNSPUNSP
72002-01-25 14:45PSTYesKKLUSGS8844.91 Fair NONE1Imported Channel 1WADEunspeunkno88444.01555.70UNSPUNSPUNSPunknUNSPUNSPUNSP
62001-03-13 11:50PSTYesKKLUSGS2062.92 Good NONE1Imported Channel 1WADEunspeunkno20635.083.72.46UNSPUNSPUNSPunknUNSPUNSPUNSP
52000-08-22 10:00PDTYesKKLUSGS2.36 Good NONE1Imported Channel 1WADEunspeunkno2.3612.26.710.35UNSPUNSPUNSPunknUNSPUNSPUNSP
41999-09-03 14:00PDTYesKKL/EHUSGS3.50 Good NONE1Imported Channel 1WADEunspeunkno3.5012.06.080.58UNSPUNSPUNSPunknUNSPUNSPUNSP
31998-08-26 15:15PDTYesKKLUSGS3.56 Fair NONE1Imported Channel 1WADEunspeunkno3.5611.45.220.68UNSPUNSPUNSPunknUNSPUNSPUNSP
21997-09-30 15:15PDTYesKKLUSGS6.12 Fair NONE1Imported Channel 1WADEunspeunkno6.1213.09.720.63UNSPUNSPUNSPunknUNSPUNSPUNSP