USGS Surface Water for USA: Streamflow Measurements

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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 05464090 Cedar River near La Porte City, IA

Black Hawk County, Iowa

Hydrologic Unit Code 07080205

Latitude 42°20'06", Longitude 92°09'52" NAD83

Drainage area 5,360 square miles

Gage datum 805.67 feet above NAVD88

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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
13	2012-09-26 09:56	CDT	Yes	JFC/SMS	USGS	488	-25.47	0.00	1.00	Poor	Clear	NONE
12	2011-05-17 13:38:04	CDT	Yes	JCM	USGS	6950	0.00			Good	Clear	NONE
11	2010-10-19 10:54	CDT	Yes	SRS/JDG	USGS	2960	794.92	0.00	0.40	Fair	Clear	NONE
10	2004-05-24 10:17	CDT	Yes	ALD/KSH	USGS	35600	11.05	0.12	1.10	Unspecified	DebrisLight	NONE
9	2003-10-21 13:00	CDT	Yes	DTC	USGS	811	25.25	0.00	0.80	Good	Clear	NONE
8	2003-09-23 16:10	CDT	Yes	ALD	USGS	977	26.02	0.00	1.80	Good	Clear	NONE
7	2002-09-25 09:30	CDT	Yes	RDG/SML	USGS	1310	24.20			Unspecified	Clear	NONE
6	2001-05-25 16:15	CDT	Yes	DJS/VM	USGS	8340				Fair	Clear	NONE
5	2000-11-14 12:50	CST	Yes	RDG/JFN	USGS	2160	23.60	0.00	1.20	Poor	Clear	NONE
4	1975-10-29 13:35	CST	Yes	VEM	USGS	855	24.43	0.00	0.70	Good	Clear	NONE
3	1975-09-24 13:40	CDT	Yes	MAM/G-L	USGS	916	24.23			Good	Clear	NONE
2	1974-10-21 14:30	CDT	Yes	MAM	USGS	1220	24.00			Good	Clear	NONE
1	1971-09-01 10:30	CDT	Yes	TJS/EDS	USGS	911	24.30	0.00	0.90	Good	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

2012-09-26 09:56

CDT

Yes

JFC/SMS

USGS

488

-25.47

0.00

1.00

Poor

Clear

NONE

2011-05-17 13:38:04

CDT

Yes

JCM

USGS

6950

0.00

Good

Clear

NONE

2010-10-19 10:54

CDT

Yes

SRS/JDG

USGS

2960

794.92

0.00

0.40

Fair

Clear

NONE

2004-05-24 10:17

CDT

Yes

ALD/KSH

USGS

35600

11.05

0.12

1.10

Unspecified

DebrisLight

NONE

2003-10-21 13:00

CDT

Yes

DTC

USGS

811

25.25

0.00

0.80

Good

Clear

NONE

2003-09-23 16:10

CDT

Yes

ALD

USGS

977

26.02

0.00

1.80

Good

Clear

NONE

2002-09-25 09:30

CDT

Yes

RDG/SML

USGS

1310

24.20

Unspecified

Clear

NONE

2001-05-25 16:15

CDT

Yes

DJS/VM

USGS

8340

Fair

Clear

NONE

2000-11-14 12:50

CST

Yes

RDG/JFN

USGS

2160

23.60

0.00

1.20

Poor

Clear

NONE

1975-10-29 13:35

CST

Yes

VEM

USGS

855

24.43

0.00

0.70

Good

Clear

NONE

1975-09-24 13:40

CDT

Yes

MAM/G-L

USGS

916

24.23

Good

Clear

NONE

1974-10-21 14:30

CDT

Yes

MAM

USGS

1220

24.00

Good

Clear

NONE

1971-09-01 10:30

CDT

Yes

TJS/EDS

USGS

911

24.30

0.00

0.90

Good

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: 2025-12-24 16:11:07 EST
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