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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 06607510 Little Sioux River near Blencoe, IA
Monona County, Iowa
Hydrologic Unit Code 10230003
Latitude  41°53'58", Longitude  95°58'39" NAD27
Drainage area 4,440  square miles
Gage datum 1,010.26 feet above NGVD29
Output formats
HTML table with channel data
HTML table without channel data
Tab-separated data with channel data
Tab-separated data without channel data
Graph of 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)
481942-07-23 09:10CSTYesLJSUSGS2019.28 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno20151.01111.81UNSPUNSPUNSPunknUNSPUNSPUNSP
471942-07-08 08:10CSTYesLJSUSGS55110.97 FairClearNONE1Imported Channel 1UNSPQSCMMunkno55164.02881.91UNSPUNSPUNSPunknUNSPUNSPUNSP
461942-06-29 11:50CSTYesLJSUSGS287018.74 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno287083.08793.27UNSPUNSPUNSPunknUNSPUNSPUNSP
451942-06-20 14:10CSTYesLJSUSGS212016.96 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno212077.86803.12UNSPUNSPUNSPunknUNSPUNSPUNSP
441942-06-13 09:30CSTYesLJSUSGS127014.04 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno127069.04862.64UNSPUNSPUNSPunknUNSPUNSPUNSP
431942-06-06 14:30CSTYesLJSUSGS339020.71 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno339091.010503.23UNSPUNSPUNSPunknUNSPUNSPUNSP
421942-05-26 09:30CSTYesLJSUSGS95312.97 FairClearNONE1Imported Channel 1UNSPQSCMMunkno95368.43442.81UNSPUNSPUNSPunknUNSPUNSPUNSP
411942-05-21 09:45CSTYesLJSUSGS119014.17 FairClearNONE1Imported Channel 1UNSPQSCMMunkno119070.04872.44UNSPUNSPUNSPunknUNSPUNSPUNSP
401942-05-08 09:05CSTYesLJSUSGS107013.92 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno107072.04572.34UNSPUNSPUNSPunknUNSPUNSPUNSP
391942-05-04 12:00CSTYesLJSUSGS81216.79 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno81271.43772.15UNSPUNSPUNSPunknUNSPUNSPUNSP
381942-03-24 13:05CSTYesLJSUSGS83616.83 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno83669.03642.30UNSPUNSPUNSPunknUNSPUNSPUNSP
371942-02-21 13:15CSTYesLJSUSGS40816.54 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno40866.02401.70UNSPUNSPUNSPunknUNSPUNSPUNSP
361942-01-13 10:50CSTYesLJSUSGS20015.33 GoodIceCoverNONE1Imported Channel 1UNSPQSCMMunkno20061.01361.47UNSPUNSPUNSPunknUNSPUNSPUNSP
351941-12-06 13:10CSTYesLJSUSGS73716.68 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno73767.03582.06UNSPUNSPUNSPunknUNSPUNSPUNSP
341941-10-26 16:07CSTYesGLW/LJSUSGS36614.59 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno36657.02231.64UNSPUNSPUNSPunknUNSPUNSPUNSP
331941-09-19 08:20CSTYesLJSUSGS110018.02 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno110072.03942.79UNSPUNSPUNSPunknUNSPUNSPUNSP
321941-09-16 18:15CSTYesLJSUSGS313024.43 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno313093.89603.26UNSPUNSPUNSPunknUNSPUNSPUNSP
311941-09-14 08:10CSTYesLJSUSGS278023.15 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno278086.88343.34UNSPUNSPUNSPunknUNSPUNSPUNSP
301941-09-12 16:00CSTYesLJSUSGS67.312.83 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno67.341.047.61.42UNSPUNSPUNSPunknUNSPUNSPUNSP
291941-08-11 09:45CSTYesLJSUSGS95.013.17 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno95.042.561.51.54UNSPUNSPUNSPunknUNSPUNSPUNSP
281941-06-19 14:10CSTYesLJSUSGS78817.05 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno78868.63252.43UNSPUNSPUNSPunknUNSPUNSPUNSP
271941-06-17 15:45CSTYesLJSUSGS105018.54 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno105073.54282.45UNSPUNSPUNSPunknUNSPUNSPUNSP
261941-05-23 14:00CSTYesLJSUSGS33615.00 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno33658.81871.80UNSPUNSPUNSPunknUNSPUNSPUNSP
251941-05-06 10:30CSTYesLJSUSGS75517.02 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno75567.02862.64UNSPUNSPUNSPunknUNSPUNSPUNSP
241941-04-21 12:30CSTYesLJSUSGS42116.04 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno42164.31912.21UNSPUNSPUNSPunknUNSPUNSPUNSP
231941-03-25 10:15CSTYesLJSUSGS42.414.15 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno42.452.059.20.72UNSPUNSPUNSPunknUNSPUNSPUNSP
221941-02-21 14:30CSTYesLJSUSGS26.114.78 FairIceCoverNONE1Imported Channel 1UNSPQSCMMunkno26.143.086.50.30UNSPUNSPUNSPunknUNSPUNSPUNSP
211941-01-10 15:25CSTYesHDBUSGS19016.03 GoodIceCoverNONE1Imported Channel 1UNSPQSCMMunkno19058.01371.39UNSPUNSPUNSPunknUNSPUNSPUNSP
201940-11-21 08:25CSTYesWITUSGS16215.24 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno16254.51421.14UNSPUNSPUNSPunknUNSPUNSPUNSP
191940-10-17 15:55CSTYesLJSUSGS98.014.80 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno98.057.51350.73UNSPUNSPUNSPunknUNSPUNSPUNSP
181940-08-30 16:55CSTYesHDBUSGS14.314.04 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno14.353.024.60.59UNSPUNSPUNSPunknUNSPUNSPUNSP
171940-06-14 09:15CSTYesBHRUSGS49.613.61 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno49.646.080.90.61UNSPUNSPUNSPunknUNSPUNSPUNSP
161940-06-10 09:10CSTYesHDBUSGS53716.07 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno53757.02212.43UNSPUNSPUNSPunknUNSPUNSPUNSP
151940-06-08 13:20CSTYesHDBUSGS161019.90 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno161070.04783.37UNSPUNSPUNSPunknUNSPUNSPUNSP
141940-06-07 16:50CSTYesHDBUSGS115018.30 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno115064.03723.09UNSPUNSPUNSPunknUNSPUNSPUNSP
131940-06-05 16:50CSTYesRWRUSGS171020.65 FairUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno171083.25862.92UNSPUNSPUNSPunknUNSPUNSPUNSP
121940-06-04 -- ----YesBHRUSGS282025.26 PoorUnspecifedNONE1Imported Channel 1OTHRQIDIR 2820 UNSPUNSPUNSPunknUNSPUNSPUNSP
111940-05-07 15:30CSTYesHDBUSGS12514.07 ExcellentClearNONE1Imported Channel 1UNSPQSCMMunkno12555.091.01.37UNSPUNSPUNSPunknUNSPUNSPUNSP
101940-04-05 09:10CSTYesBHRUSGS64517.20 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno64560.02822.29UNSPUNSPUNSPunknUNSPUNSPUNSP
91940-03-21 09:45CSTYesBHRUSGS38215.60 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno38257.01882.03UNSPUNSPUNSPunknUNSPUNSPUNSP
81940-02-24 11:05CSTYesBHRUSGS0.3612.57 PoorIceCoverNONE1Imported Channel 1UNSPQSCMMunkno0.3613.52.950.12UNSPUNSPUNSPunknUNSPUNSPUNSP
71940-01-20 11:05CSTYesBHRUSGS0.1512.29 PoorIceCoverNONE1Imported Channel 1UNSPQSCMMunkno0.158.001.790.08UNSPUNSPUNSPunknUNSPUNSPUNSP
61939-11-30 14:25CSTYesRWR/BHRUSGS17.013.04 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno17.034.025.40.67UNSPUNSPUNSPunknUNSPUNSPUNSP
51939-10-06 17:05CSTYesHDBUSGS5.1412.66 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno5.1419.08.880.58UNSPUNSPUNSPunknUNSPUNSPUNSP
41939-08-05 14:30CSTYesRWRUSGS48.114.28 FairUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno48.155.053.00.91UNSPUNSPUNSPunknUNSPUNSPUNSP
31939-06-19 16:15CSTYesHDBUSGS41.311.59 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno41.344.040.91.01UNSPUNSPUNSPunknUNSPUNSPUNSP
21939-05-05 11:20CSTYesVAKUSGS17713.20 FairUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno17779.03550.50UNSPUNSPUNSPunknUNSPUNSPUNSP
11939-04-11 16:30CSTYesWITUSGS22713.53 ExcellentClearNONE1Imported Channel 1UNSPQSCMMunkno22782.04100.55UNSPUNSPUNSPunknUNSPUNSPUNSP