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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 12062502 PURDY CREEK AT HWY101 NEAR UNION, WA
Mason County, Washington
Hydrologic Unit Code 17110017
Latitude  47°18'11.71", Longitude 123°10'48.70" NAD83
Gage datum 13.99 feet above NAVD88
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)
162025-09-02 14:00:30PDTYesEJRUSGS24.021.38 FairClearNONE1MainWADEQSCMMVADV24.038.020.91.14SOFTGRVLEVENSTDYEVENSTNDUPST85.00
152025-06-30 14:51:02PDTYesEJRUSGS26.121.550.010.70FairClearNONE1MainWADEQSCMMVADV26.134.030.70.85SOFTGRVLEVENSTDYEVENSTNDUPST80.00
142025-04-29 10:58:08PDTYesEJRUSGS37.621.250.000.70FairClearNONE1MainWADEQSCMMVADV37.636.021.51.74SOFTGRVLEVENSTDYEVENSTNDUPST75.00
132024-08-20 11:49:14PDTYesEJRUSGS24.521.250.000.67PoorClearNONE1MainWADEQSCMMVADV24.536.027.00.91SOFTGRVLEVENSTDYUNEVSTNDUPST100.00
122024-06-24 15:06:31PDTYesEJRUSGS27.721.410.000.55PoorClearNONE1MainWADEQSCMMVADV27.734.029.10.95FIRMGRVLEVENSTDYEVENSTNDUPST100.00
112024-04-29 13:02:29PDTYesEJRUSGS38.721.530.020.55FairClearNONE1MainWADEQSCMMVADV38.736.035.21.10SOFTGRVLEVENSTDYEVENSTNDUPST50.00
102023-09-28 11:51:30PDTYesEJRUSGS28.721.530.010.80GoodClearNONE1MainWADEQSCMMVADV28.736.032.60.88SOFTGRVLUNEVSTDYUNEVSTNDUPST100.00
92023-08-08 14:48:30PDTYesEJRUSGS22.421.360.000.67GoodClearNONE1MainWADEQSCMMVADV22.433.021.61.04SOFTsiltUNEVSTDYUNEVSTNDUPST100.00
82023-06-07 12:56:30PDTYesEJRUSGS29.321.560.000.50GoodClearNONE1MainWADEQSCMMVADV29.336.526.01.12SOFTGRVLEVENSTDYEVENSTNDUPST200.00
2_SOC2023-01-13 11:59PSTNo
1_SOC2022-12-27 10:01PSTNo
72022-10-11 11:53:30PDTYesEDSUSGS26.121.130.000.90FairDebrisHeavyNONE1MainWADEQSCMMVADV26.130.720.31.28SOFTGRVLEVENSTDYEVENUNFMUPST10.00
62022-05-03 10:03:11PDTYesAMCUSGS46.721.410.060.60GoodDebrisLightNONE1MainWADEQSCMMVADV46.735.028.91.62FIRMGRVLUNEVSTDYUNEVSTNDUPST75.00
52022-03-02 08:10:11PSTNo
42022-02-28 13:12:32PSTNo
32022-02-28 11:15:58PSTNo
22022-02-25 14:08:28PSTYesAMCUSGS47.221.230.020.50FairDebrisLightNONE1MainWADEQSCMMVADV47.238.030.71.54FIRMCBLSUNEVSTDYUNEVSTNDUPST75.00
12021-10-27 12:17:59PDTNo