USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

USGS 06483100 Rock River near Rock Rapids, IA

Lyon County, Iowa

Hydrologic Unit Code 10170204

Latitude 43°30'01", Longitude 96°11'03" NAD27

Drainage area 558 square miles

Gage datum 1,360 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)	GH Change (ft)	Meas. Duration (hr)	Meas. Rated	Control	Flow Adjust. Code
18	1976-08-24 16:00	CDT	Yes	RDB	USGS	0.93	18.65			Fair	Clear	NONE
17	1975-10-21 08:49	CDT	Yes	MES	USGS	12.3	18.21			Fair	Clear	NONE
16	1974-09-29 13:45	CDT	Yes	MES	USGS	7.56	18.34			Good	Clear	NONE
14	1972-10-16 14:00	CDT	Yes	OJR	USGS	30.0	17.87			Good	Clear	NONE
13	1971-09-01 10:20	CDT	Yes	FEL	USGS	11.2	17.92			Good	Clear	NONE
12	1970-09-01 09:32	CDT	Yes	RDB	USGS	12.7	17.82			Good	Clear	NONE
11	1969-10-09 09:00	CST	Yes	FEL	USGS	28.6	17.41			Unspecified	Clear	NONE
10	1968-09-11 12:20	CST	Yes	DAS	USGS	9.53	17.85			Fair	Clear	NONE
9	1968-06-11 12:00	CST	Yes	EDS	USGS	8.92	17.04			Poor	Clear	NONE
8	1967-09-11 10:25	CST	Yes	EDS	USGS	5.78	17.46			Good	Clear	NONE
7	1966-08-15 13:05	CST	Yes	EDS	USGS	9.10	18.19			Good	Clear	NONE
6	1961-09-25 17:00	CST	Yes	JLC	USGS	10.0	17.65	0.00	0.30	Good	Clear	NONE
5	1960-10-11 09:30	CST	Yes	SM	USGS	16.1	17.20			Fair		NONE
4	1959-08-13 08:30	CST	Yes	JLC	USGS	3.95	17.84	-0.02		Unspecified	Clear	NONE
3	1958-10-14 10:45	CST	Yes	RHT	USGS	2.29	18.12			Unspecified		NONE
2	1958-05-15 07:50	CST	Yes	CWS	USGS	26.3	17.83	0.00		Unspecified	Clear	NONE
1	1957-10-01 18:00	CST	Yes	RHT	USGS	25.4	17.78			Unspecified	Clear	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

1976-08-24 16:00

CDT

Yes

RDB

USGS

0.93

18.65

Fair

Clear

NONE

1975-10-21 08:49

CDT

Yes

MES

USGS

12.3

18.21

Fair

Clear

NONE

1974-09-29 13:45

CDT

Yes

MES

USGS

7.56

18.34

Good

Clear

NONE

1972-10-16 14:00

CDT

Yes

OJR

USGS

30.0

17.87

Good

Clear

NONE

1971-09-01 10:20

CDT

Yes

FEL

USGS

11.2

17.92

Good

Clear

NONE

1970-09-01 09:32

CDT

Yes

RDB

USGS

12.7

17.82

Good

Clear

NONE

1969-10-09 09:00

CST

Yes

FEL

USGS

28.6

17.41

Unspecified

Clear

NONE

1968-09-11 12:20

CST

Yes

DAS

USGS

9.53

17.85

Fair

Clear

NONE

1968-06-11 12:00

CST

Yes

EDS

USGS

8.92

17.04

Poor

Clear

NONE

1967-09-11 10:25

CST

Yes

EDS

USGS

5.78

17.46

Good

Clear

NONE

1966-08-15 13:05

CST

Yes

EDS

USGS

9.10

18.19

Good

Clear

NONE

1961-09-25 17:00

CST

Yes

JLC

USGS

10.0

17.65

0.00

0.30

Good

Clear

NONE

1960-10-11 09:30

CST

Yes

USGS

16.1

17.20

Fair

NONE

1959-08-13 08:30

CST

Yes

JLC

USGS

3.95

17.84

-0.02

Unspecified

Clear

NONE

1958-10-14 10:45

CST

Yes

RHT

USGS

2.29

18.12

Unspecified

NONE

1958-05-15 07:50

CST

Yes

CWS

USGS

26.3

17.83

0.00

Unspecified

Clear

NONE

1957-10-01 18:00

CST

Yes

RHT

USGS

25.4

17.78

Unspecified

Clear

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: 2024-11-23 21:33:59 EST
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