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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 06809450 East Nishnabotna River near Griswold, IA
Cass County, Iowa
Hydrologic Unit Code 10240003
Latitude  41°17'19", Longitude  95°08'13" NAD27
Drainage area 778  square miles
Gage datum 1,100 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)
131975-09-25 11:15CDTYesMESUSGS84.239.81 FairDebrisLightNONE1Imported Channel 1WADEunspeunkno84.210370.81.19UNSPUNSPUNSPunknUNSPUNSPUNSP
121971-08-31 10:50CDTYesEDSUSGS21.839.78 UnspecifiedClearNONE1Imported Channel 1WADEunspeunkno21.834.021.31.02UNSPUNSPUNSPunknUNSPUNSPUNSP
111968-06-19 12:05CSTYesEDSUSGS15.739.62 GoodClearNONE1Imported Channel 1WADEunspeunkno15.754.025.70.61UNSPUNSPUNSPunknUNSPUNSPUNSP
101967-05-23 09:25CSTYesFELUSGS20.239.70 GoodClearNONE1Imported Channel 1WADEunspeunkno20.242.025.50.79UNSPUNSPUNSPunknUNSPUNSPUNSP
91966-08-31 09:25CSTYesEDSUSGS58.839.44 GoodClearNONE1Imported Channel 1WADEunspeunkno58.892.056.51.04UNSPUNSPUNSPunknUNSPUNSPUNSP
81964-10-28 09:35CSTYesRDBUSGS10238.78 UnspecifiedClearNONE1Imported Channel 1WADEunspeunkno10283.071.81.42UNSPUNSPUNSPunknUNSPUNSPUNSP
71963-11-06 09:20CSTYesRDBUSGS37.639.24 UnspecifiedClearNONE1Imported Channel 1WADEunspeunkno37.650.039.60.95UNSPUNSPUNSPunknUNSPUNSPUNSP
61961-09-01 10:50CSTYesEDSUSGS60.937.00 GoodClearNONE1Imported Channel 1WADEunspeunkno60.999.068.30.89UNSPUNSPUNSPunknUNSPUNSPUNSP
51960-09-16 08:20CSTYes?USGS13538.82 GoodClearNONE1Imported Channel 1WADEunspeunkno13585.078.71.72UNSPUNSPUNSPunknUNSPUNSPUNSP
41959-10-20 08:40CSTYesRDBUSGS64.739.220.000.50FairClearNONE1Imported Channel 1WADEunspeunkno64.779.061.81.05UNSPUNSPUNSPunknUNSPUNSPUNSP
31958-10-15 14:35CSTYesEDSUSGS19033.58 GoodClearNONE1Imported Channel 1WADEunspeunkno19096.01211.57UNSPUNSPUNSPunknUNSPUNSPUNSP
21958-05-13 16:35CSTYesJJPUSGS10332.750.000.80UnspecifiedClearNONE1Imported Channel 1WADEunspeunkno1031051230.83UNSPUNSPUNSPunknUNSPUNSPUNSP
11957-09-24 13:55CSTYescwsUSGS54.533.660.000.80GoodClearNONE1Imported Channel 1WADEunspeunkno54.597.054.61.00UNSPUNSPUNSPunknUNSPUNSPUNSP