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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 11465820 SANTA ROSA C DIV A VORTEX NR SANTA ROSA CA
Sonoma County, California
Hydrologic Unit Code 18010110
Latitude  38°27'25.75", Longitude 122°38'20.47" NAD83
Gage datum 0 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)
3A2017-01-08 11:59:30PSTYesDRP/WELUSGS827310.04 Unknown NONE1mainunknother 827 unknunknunknunknunknUNKNunkn
32016-03-21 13:16:30PDTYesWelUSGS159301.55 Fair NONE1mainWADEQSCMMVADV15946.01021.56UNSPUNSPUNSPunknUNSPUNSPUNSP
2A2016-03-05 11:59:30PSTYesDRP/WELUSGS698308.43 Unknown NONE1mainunknother 698 unknunknunknunknunknUNKNunkn
22016-02-10 14:30PSTYesWelUSGS12.5300.22 Fair NONE1mainWADEQSCMMVADV12.515.012.21.03UNSPUNSPUNSPunknUNSPUNSPDNST200.00
12016-02-02 14:13PSTYesWelUSGS29.2300.49 FairDebrisModerateNONE1mainWADEQSCMMVADV29.240.031.40.93UNSPUNSPUNSPunknUNSPUNSPUNSP