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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 06807550 West Nishnabotna River near Malvern, IA
Mills County, Iowa
Hydrologic Unit Code 10240002
Latitude  40°57'30", Longitude  95°33'22" NAD27
Drainage area 974  square miles
Gage datum 960 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)
121971-08-31 09:10CDTYesRDBUSGS42.023.84 GoodClearNONE1Imported Channel 1WADEunspeunkno42.065.040.51.04UNSPUNSPUNSPunknUNSPUNSPUNSP
111968-06-18 13:45CSTYesOJRUSGS53.623.17 GoodClearNONE1Imported Channel 1WADEunspeunkno53.6 44.21.21UNSPUNSPUNSPunknUNSPUNSPUNSP
10A1967-05-23 10:30CSTYesOJRUSGS45.123.46 GoodClearNONE1Imported Channel 1WADEunspeunkno45.171.037.21.21UNSPUNSPUNSPunknUNSPUNSPUNSP
101967-05-23 08:20CSTYesOJRUSGS1.9226.87 UnspecifiedClearNONE1Imported Channel 1WADEunspeunkno1.9212.09.510.20UNSPUNSPUNSPunknUNSPUNSPUNSP
91966-08-29 13:35CSTYesOJRUSGS120-22.95 GoodClearNONE1Imported Channel 1WADEunspeunkno12061.078.01.54UNSPUNSPUNSPunknUNSPUNSPUNSP
81964-10-27 08:20CSTYesRDBUSGS14222.65 UnspecifiedClearNONE1Imported Channel 1WADEunspeunkno14210195.71.48UNSPUNSPUNSPunknUNSPUNSPUNSP
71963-11-05 13:40CSTYes102USGS76.9-22.91 GoodClearNONE1Imported Channel 1WADEunspeunkno76.960.71.271.27UNSPUNSPUNSPunknUNSPUNSPUNSP
61961-08-30 08:55CSTYesRDBUSGS18522.92 FairClearNONE1Imported Channel 1WADEunspeunkno18595.01601.16UNSPUNSPUNSPunknUNSPUNSPUNSP
51960-09-15 13:00CSTYesOJRUSGS264-22.19 GoodClearNONE1Imported Channel 1WADEunspeunkno2641191641.61UNSPUNSPUNSPunknUNSPUNSPUNSP
41959-10-20 11:15CSTYesFELUSGS94.622.71 FairClearNONE1Imported Channel 1WADEunspeunkno94.61101020.93UNSPUNSPUNSPunknUNSPUNSPUNSP
31958-10-15 11:25CSTYesOJRUSGS153-23.07-0.010.90GoodClearNONE1Imported Channel 1WADEunspeunkno15396.01021.51UNSPUNSPUNSPunknUNSPUNSPUNSP
21958-05-14 13:15CSTYesGGPUSGS11323.250.000.40UnspecifiedClearNONE1Imported Channel 1WADEunspeunkno11388.078.91.44UNSPUNSPUNSPunknUNSPUNSPUNSP
11957-09-24 12:45CSTYesFELUSGS30.423.59 UnspecifiedClearNONE1Imported Channel 1WADEunspeunkno30.483.060.50.50UNSPUNSPUNSPunknUNSPUNSPUNSP