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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 05461500 Shell Rock River near Clarksville, IA
Butler County, Iowa
Hydrologic Unit Code 07080202
Latitude  42°47'25", Longitude  92°41'15" NAD27
Drainage area 1,626.00  square miles
Gage datum 916.00 feet above NGVD29
Output formats
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HTML table without channel data
Tab-separated data with channel data
Tab-separated data without 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)
431934-09-20 15:30CSTYesJASUSGS38.40.50 FairUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno38.494.045.50.84UNSPUNSPUNSPunknUNSPUNSPUNSP
421934-09-07 15:25CSTYesSKJUSGS31.90.40 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno31.972.549.60.64UNSPUNSPUNSPunknUNSPUNSPUNSP
411934-07-26 17:30CSTYesJASUSGS17.10.26 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno17.153.026.40.65UNSPUNSPUNSPunknUNSPUNSPUNSP
401934-05-09 09:10CSTYesSKJUSGS66.30.72 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno66.314390.40.73UNSPUNSPUNSPunknUNSPUNSPUNSP
391934-03-13 14:15CSTYesSKJUSGS62.90.68 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno62.913467.00.94UNSPUNSPUNSPunknUNSPUNSPUNSP
381933-11-18 12:50CSTYesSKJ/RGKUSGS72.30.84 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno72.314787.00.83UNSPUNSPUNSPunknUNSPUNSPUNSP
371933-08-23 16:55CSTYesHPE/RGKUSGS49.80.64 PoorUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno49.817372.20.71UNSPUNSPUNSPunknUNSPUNSPUNSP
361933-08-04 12:25CSTYesRGKUSGS71.50.82 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno71.516695.60.75UNSPUNSPUNSPunknUNSPUNSPUNSP
351933-06-15 13:10CSTYesRGKUSGS1671.26 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno1671751830.92UNSPUNSPUNSPunknUNSPUNSPUNSP
341933-04-06 11:05CSTYesRGK/HPEUSGS49006.89 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno490028413203.70UNSPUNSPUNSPunknUNSPUNSPUNSP
331933-03-30 13:00CSTYesRGKUSGS948010.27 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno948031324003.94UNSPUNSPUNSPunknUNSPUNSPUNSP
321933-03-14 14:05CSTYesRGKUSGS3601.64 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno3601782561.41UNSPUNSPUNSPunknUNSPUNSPUNSP
311927-05-03 10:45CSTYesUSGSUSGS8132.55 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno8131673842.11UNSPUNSPUNSPunknUNSPUNSPUNSP
301927-03-21 12:20CSTYesUSGSUSGS16403.71 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno16402065552.95UNSPUNSPUNSPunknUNSPUNSPUNSP
291926-10-28 16:10CSTYesUSGSUSGS2311.34 FairUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno2311051451.60UNSPUNSPUNSPunknUNSPUNSPUNSP
281926-08-01 11:45CSTYesUSGSUSGS3931.71 FairUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno3931071882.09UNSPUNSPUNSPunknUNSPUNSPUNSP
271926-07-30 16:25CSTYesUSGSUSGS76.90.68 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno76.985.079.00.97UNSPUNSPUNSPunknUNSPUNSPUNSP
261926-04-28 06:20CSTYesUSGSUSGS2731.42 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno2731531791.52UNSPUNSPUNSPunknUNSPUNSPUNSP
251925-06-04 09:35CSTYesUSGSUSGS72.00.62 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno72.088.086.00.84UNSPUNSPUNSPunknUNSPUNSPUNSP
241924-10-14 15:00CSTYesUSGSUSGS1641.08 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno16485.01191.37UNSPUNSPUNSPunknUNSPUNSPUNSP
231924-05-20 15:00CSTYesUSGSUSGS2881.43 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno2881051581.82UNSPUNSPUNSPunknUNSPUNSPUNSP
221923-06-25 17:00CSTYesUSGSUSGS84.00.78 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno84.01651250.67UNSPUNSPUNSPunknUNSPUNSPUNSP
211922-09-12 12:50CSTYesUSGSUSGS75.60.69 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno75.611887.60.86UNSPUNSPUNSPunknUNSPUNSPUNSP
201922-06-16 09:30CSTYesUSGSUSGS1911.14 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno19199.01351.41UNSPUNSPUNSPunknUNSPUNSPUNSP
191921-09-27 08:15CSTYesUSGSUSGS3641.79 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno3641552141.70UNSPUNSPUNSPunknUNSPUNSPUNSP
181921-06-01 14:30CSTYesUSGSUSGS23904.53 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno23902248132.95UNSPUNSPUNSPunknUNSPUNSPUNSP
171921-05-24 16:15CSTYesUSGSUSGS9052.66 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno9051753862.34UNSPUNSPUNSPunknUNSPUNSPUNSP
161920-08-31 10:00CSTYesUSGSUSGS2851.60 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno2851521841.55UNSPUNSPUNSPunknUNSPUNSPUNSP
151920-04-16 13:00CSTYesUSGSUSGS7372.39 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno7371683592.05UNSPUNSPUNSPunknUNSPUNSPUNSP
141920-01-07 15:15CSTYesUSGSUSGS1141.93 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno1141303000.38UNSPUNSPUNSPunknUNSPUNSPUNSP
131919-09-09 09:20CSTYesUSGSUSGS1691.23 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno1691361361.24UNSPUNSPUNSPunknUNSPUNSPUNSP
121919-07-26 07:30CSTYesUSGSUSGS3291.76 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno3291823690.89UNSPUNSPUNSPunknUNSPUNSPUNSP
111919-05-15 07:15CSTYesUSGSUSGS10602.90 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno10601954812.21UNSPUNSPUNSPunknUNSPUNSPUNSP
101919-03-25 08:20CSTYesUSGSUSGS19804.13 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno19802086982.84UNSPUNSPUNSPunknUNSPUNSPUNSP
91918-10-13 14:15CSTYesUSGSUSGS2871.73 GoodClearNONE1Imported Channel 1UNSPQSCMMunkno2871932531.13UNSPUNSPUNSPunknUNSPUNSPUNSP
81918-03-24 08:05CSTYesUSGSUSGS12903.42 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno12901985692.26UNSPUNSPUNSPunknUNSPUNSPUNSP
71917-09-15 08:55CSTYesUSGSUSGS2451.67 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno2451742970.83UNSPUNSPUNSPunknUNSPUNSPUNSP
61917-06-25 15:10CSTYesUSGSUSGS26605.01 GoodUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno26602219622.77UNSPUNSPUNSPunknUNSPUNSPUNSP
51916-11-12 15:00CSTYesUSGSUSGS2741.71 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno2741332671.03UNSPUNSPUNSPunknUNSPUNSPUNSP
41916-07-21 13:35CSTYesUSGSUSGS2961.81 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno2961682851.04UNSPUNSPUNSPunknUNSPUNSPUNSP
31915-09-11 15:08CSTYesUSGSUSGS3301.92 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno3301722421.36UNSPUNSPUNSPunknUNSPUNSPUNSP
21915-06-07 09:15CSTYesUSGSUSGS27405.21 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno27402189103.02UNSPUNSPUNSPunknUNSPUNSPUNSP
11915-05-31 08:42CSTYesCHUSGS74909.07 UnspecifiedUnspecifedNONE1Imported Channel 1UNSPQSCMMunkno749031121803.43UNSPUNSPUNSPunknUNSPUNSPUNSP