USGS Surface Water for USA: Streamflow Measurements

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Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

Streamflow Measurements for the Nation

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

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Meas. Number	Date Time	Time Datum	Measurement Used?	Who	Measuring Agency	Stream flow (ft³/s)	Gage Height (ft)	Meas. Rated	Control	Flow Adjust. Code
43	1934-09-20 15:30	CST	Yes	JAS	USGS	38.4	0.50	Fair	Unspecifed	NONE
42	1934-09-07 15:25	CST	Yes	SKJ	USGS	31.9	0.40	Unspecified	Unspecifed	NONE
41	1934-07-26 17:30	CST	Yes	JAS	USGS	17.1	0.26	Unspecified	Unspecifed	NONE
40	1934-05-09 09:10	CST	Yes	SKJ	USGS	66.3	0.72	Unspecified	Unspecifed	NONE
39	1934-03-13 14:15	CST	Yes	SKJ	USGS	62.9	0.68	Unspecified	Unspecifed	NONE
38	1933-11-18 12:50	CST	Yes	SKJ/RGK	USGS	72.3	0.84	Unspecified	Unspecifed	NONE
37	1933-08-23 16:55	CST	Yes	HPE/RGK	USGS	49.8	0.64	Poor	Unspecifed	NONE
36	1933-08-04 12:25	CST	Yes	RGK	USGS	71.5	0.82	Unspecified	Unspecifed	NONE
35	1933-06-15 13:10	CST	Yes	RGK	USGS	167	1.26	Unspecified	Unspecifed	NONE
34	1933-04-06 11:05	CST	Yes	RGK/HPE	USGS	4900	6.89	Unspecified	Unspecifed	NONE
33	1933-03-30 13:00	CST	Yes	RGK	USGS	9480	10.27	Unspecified	Unspecifed	NONE
32	1933-03-14 14:05	CST	Yes	RGK	USGS	360	1.64	Unspecified	Unspecifed	NONE
31	1927-05-03 10:45	CST	Yes	USGS	USGS	813	2.55	Unspecified	Unspecifed	NONE
30	1927-03-21 12:20	CST	Yes	USGS	USGS	1640	3.71	Good	Unspecifed	NONE
29	1926-10-28 16:10	CST	Yes	USGS	USGS	231	1.34	Fair	Unspecifed	NONE
28	1926-08-01 11:45	CST	Yes	USGS	USGS	393	1.71	Fair	Unspecifed	NONE
27	1926-07-30 16:25	CST	Yes	USGS	USGS	76.9	0.68	Unspecified	Unspecifed	NONE
26	1926-04-28 06:20	CST	Yes	USGS	USGS	273	1.42	Good	Unspecifed	NONE
25	1925-06-04 09:35	CST	Yes	USGS	USGS	72.0	0.62	Good	Unspecifed	NONE
24	1924-10-14 15:00	CST	Yes	USGS	USGS	164	1.08	Good	Unspecifed	NONE
23	1924-05-20 15:00	CST	Yes	USGS	USGS	288	1.43	Good	Unspecifed	NONE
22	1923-06-25 17:00	CST	Yes	USGS	USGS	84.0	0.78	Good	Unspecifed	NONE
21	1922-09-12 12:50	CST	Yes	USGS	USGS	75.6	0.69	Good	Unspecifed	NONE
20	1922-06-16 09:30	CST	Yes	USGS	USGS	191	1.14	Good	Unspecifed	NONE
19	1921-09-27 08:15	CST	Yes	USGS	USGS	364	1.79	Good	Unspecifed	NONE
18	1921-06-01 14:30	CST	Yes	USGS	USGS	2390	4.53	Good	Unspecifed	NONE
17	1921-05-24 16:15	CST	Yes	USGS	USGS	905	2.66	Good	Unspecifed	NONE
16	1920-08-31 10:00	CST	Yes	USGS	USGS	285	1.60	Good	Unspecifed	NONE
15	1920-04-16 13:00	CST	Yes	USGS	USGS	737	2.39	Good	Unspecifed	NONE
14	1920-01-07 15:15	CST	Yes	USGS	USGS	114	1.93	Good	Unspecifed	NONE
13	1919-09-09 09:20	CST	Yes	USGS	USGS	169	1.23	Good	Unspecifed	NONE
12	1919-07-26 07:30	CST	Yes	USGS	USGS	329	1.76	Good	Unspecifed	NONE
11	1919-05-15 07:15	CST	Yes	USGS	USGS	1060	2.90	Unspecified	Unspecifed	NONE
10	1919-03-25 08:20	CST	Yes	USGS	USGS	1980	4.13	Unspecified	Unspecifed	NONE
9	1918-10-13 14:15	CST	Yes	USGS	USGS	287	1.73	Good	Clear	NONE
8	1918-03-24 08:05	CST	Yes	USGS	USGS	1290	3.42	Unspecified	Unspecifed	NONE
7	1917-09-15 08:55	CST	Yes	USGS	USGS	245	1.67	Unspecified	Unspecifed	NONE
6	1917-06-25 15:10	CST	Yes	USGS	USGS	2660	5.01	Good	Unspecifed	NONE
5	1916-11-12 15:00	CST	Yes	USGS	USGS	274	1.71	Unspecified	Unspecifed	NONE
4	1916-07-21 13:35	CST	Yes	USGS	USGS	296	1.81	Unspecified	Unspecifed	NONE
3	1915-09-11 15:08	CST	Yes	USGS	USGS	330	1.92	Unspecified	Unspecifed	NONE
2	1915-06-07 09:15	CST	Yes	USGS	USGS	2740	5.21	Unspecified	Unspecifed	NONE
1	1915-05-31 08:42	CST	Yes	CH	USGS	7490	9.07	Unspecified	Unspecifed	NONE

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

1934-09-20 15:30

CST

Yes

JAS

USGS

38.4

0.50

Fair

Unspecifed

NONE

1934-09-07 15:25

CST

Yes

SKJ

USGS

31.9

0.40

Unspecified

Unspecifed

NONE

1934-07-26 17:30

CST

Yes

JAS

USGS

17.1

0.26

Unspecified

Unspecifed

NONE

1934-05-09 09:10

CST

Yes

SKJ

USGS

66.3

0.72

Unspecified

Unspecifed

NONE

1934-03-13 14:15

CST

Yes

SKJ

USGS

62.9

0.68

Unspecified

Unspecifed

NONE

1933-11-18 12:50

CST

Yes

SKJ/RGK

USGS

72.3

0.84

Unspecified

Unspecifed

NONE

1933-08-23 16:55

CST

Yes

HPE/RGK

USGS

49.8

0.64

Poor

Unspecifed

NONE

1933-08-04 12:25

CST

Yes

RGK

USGS

71.5

0.82

Unspecified

Unspecifed

NONE

1933-06-15 13:10

CST

Yes

RGK

USGS

167

1.26

Unspecified

Unspecifed

NONE

1933-04-06 11:05

CST

Yes

RGK/HPE

USGS

4900

6.89

Unspecified

Unspecifed

NONE

1933-03-30 13:00

CST

Yes

RGK

USGS

9480

10.27

Unspecified

Unspecifed

NONE

1933-03-14 14:05

CST

Yes

RGK

USGS

360

1.64

Unspecified

Unspecifed

NONE

1927-05-03 10:45

CST

Yes

USGS

813

2.55

Unspecified

Unspecifed

NONE

1927-03-21 12:20

CST

Yes

USGS

1640

3.71

Good

Unspecifed

NONE

1926-10-28 16:10

CST

Yes

USGS

231

1.34

Fair

Unspecifed

NONE

1926-08-01 11:45

CST

Yes

USGS

393

1.71

Fair

Unspecifed

NONE

1926-07-30 16:25

CST

Yes

USGS

76.9

0.68

Unspecified

Unspecifed

NONE

1926-04-28 06:20

CST

Yes

USGS

273

1.42

Good

Unspecifed

NONE

1925-06-04 09:35

CST

Yes

USGS

72.0

0.62

Good

Unspecifed

NONE

1924-10-14 15:00

CST

Yes

USGS

164

1.08

Good

Unspecifed

NONE

1924-05-20 15:00

CST

Yes

USGS

288

1.43

Good

Unspecifed

NONE

1923-06-25 17:00

CST

Yes

USGS

84.0

0.78

Good

Unspecifed

NONE

1922-09-12 12:50

CST

Yes

USGS

75.6

0.69

Good

Unspecifed

NONE

1922-06-16 09:30

CST

Yes

USGS

191

1.14

Good

Unspecifed

NONE

1921-09-27 08:15

CST

Yes

USGS

364

1.79

Good

Unspecifed

NONE

1921-06-01 14:30

CST

Yes

USGS

2390

4.53

Good

Unspecifed

NONE

1921-05-24 16:15

CST

Yes

USGS

905

2.66

Good

Unspecifed

NONE

1920-08-31 10:00

CST

Yes

USGS

285

1.60

Good

Unspecifed

NONE

1920-04-16 13:00

CST

Yes

USGS

737

2.39

Good

Unspecifed

NONE

1920-01-07 15:15

CST

Yes

USGS

114

1.93

Good

Unspecifed

NONE

1919-09-09 09:20

CST

Yes

USGS

169

1.23

Good

Unspecifed

NONE

1919-07-26 07:30

CST

Yes

USGS

329

1.76

Good

Unspecifed

NONE

1919-05-15 07:15

CST

Yes

USGS

1060

2.90

Unspecified

Unspecifed

NONE

1919-03-25 08:20

CST

Yes

USGS

1980

4.13

Unspecified

Unspecifed

NONE

1918-10-13 14:15

CST

Yes

USGS

287

1.73

Good

Clear

NONE

1918-03-24 08:05

CST

Yes

USGS

1290

3.42

Unspecified

Unspecifed

NONE

1917-09-15 08:55

CST

Yes

USGS

245

1.67

Unspecified

Unspecifed

NONE

1917-06-25 15:10

CST

Yes

USGS

2660

5.01

Good

Unspecifed

NONE

1916-11-12 15:00

CST

Yes

USGS

274

1.71

Unspecified

Unspecifed

NONE

1916-07-21 13:35

CST

Yes

USGS

296

1.81

Unspecified

Unspecifed

NONE

1915-09-11 15:08

CST

Yes

USGS

330

1.92

Unspecified

Unspecifed

NONE

1915-06-07 09:15

CST

Yes

USGS

2740

5.21

Unspecified

Unspecifed

NONE

1915-05-31 08:42

CST

Yes

USGS

7490

9.07

Unspecified

Unspecifed

NONE

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U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Streamflow Measurements
URL: https://waterdata.usgs.gov/nwis/measurements?

Page Contact Information: Iowa Water Data Support Team
Page Last Modified: 2025-09-03 14:00:16 EDT
0.28 0.27 caww02