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 01396030 South Branch Rahway River at Colonia NJ

Middlesex County, New Jersey

Hydrologic Unit Code 02030104

Latitude 40°34'57", Longitude 74°18'03" NAD83

Drainage area 9.31 square miles

Gage datum 15 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
27	2018-05-10 17:50	EDT	Yes	sds	USGS	3.60	17.12	0.00	0.50	Good	Clear	NONE
26	2017-08-28 12:15	EDT	Yes	cmw	USGS	3.18	17.14			Poor		NONE
25	2017-06-29 14:45	EDT	Yes	sds	USGS	3.97	17.13	0.00	0.50	Good		NONE
24	2016-09-23 13:37	EDT	Yes	VFBrown	USGS	1.86	17.14	0.00	0.70	Fair	VegetationLight	NONE
23	2016-06-15 15:39	EDT	Yes	VFBrown	USGS	1.74	17.10	0.00	0.50	Fair	VegetationModerate	NONE
22	2015-08-26 14:42	EDT	Yes	bem	USGS	0.51	17.14	0.00	0.50	Poor		NONE
21	2015-05-27 17:19	EDT	Yes	CS	USGS	2.38	17.58	0.00	0.50	Fair	DebrisLight	NONE
20	2014-08-08 14:29	EDT	Yes	BSP	USGS	3.05	17.15	0.00		Fair	VegetationLight	NONE
19	2014-06-25 10:56	EDT	Yes	CS	USGS	3.16	17.16	0.00	0.70	Fair	Clear	NONE
18	2013-09-06 13:42	EDT	Yes	JB	USGS	1.60		0.01	0.50	Fair	DebrisLight	NONE
17	2013-08-07 12:31	EDT	Yes	LMH	USGS	2.42	17.15	0.00	0.50	Fair	Clear	NONE
16	2002-10-07 10:02	EDT	Yes	gkh	USGS	1.51	10.92	0.00	0.60	Good	DebrisLight	NONE
15	1986-09-09 13:40	EDT	Yes	JFD	USGS	1.83	18.30	-0.01	0.80	Fair	DebrisHeavy	NONE
14	1986-07-18 13:10	EDT	Yes	JFD	USGS	1.65	17.28	-0.02	0.60	Fair	DebrisHeavy	NONE
13	1985-09-17 15:20	EDT	Yes	JFD	USGS	1.10	17.33	0.00	0.30	Fair	DebrisHeavy	NONE
12	1985-08-12 17:00	EDT	Yes	RLU	USGS	2.23	16.38	0.00	0.50	Unspecified	Clear	NONE
11	1985-04-27 10:30	EST	Yes	RU	USGS	1.82	16.29	0.00	0.50	Good		NONE
10	1984-09-11 10:40	EDT	Yes	JPC	USGS	2.04	17.30	0.00	0.30	Good		NONE
9	1983-08-16 09:45	EDT	Yes	GJP	USGS	1.80	16.71	0.00	0.50	Good	DebrisLight	NONE
8	1983-06-16 15:25	EDT	Yes	JBC	USGS	2.53	16.64	0.00	0.40	Fair	DebrisHeavy	NONE
7	1982-08-16 10:10	EDT	Yes	BP	USGS	1.73	16.70	0.00	0.50	Good	Clear	NONE
6	1982-05-13 10:20	EDT	Yes	GJP	USGS	2.92	16.70	0.00	0.40	Good	DebrisLight	NONE
5	1981-09-25 14:45	EDT	Yes	KA	USGS	3.45	16.62	0.00	0.50	Good	Clear	NONE
4	1981-07-01 14:17	EDT	Yes	GJP	USGS	1.47	16.66	0.00	0.30	Good	Clear	NONE
3	1980-09-04 11:46	EDT	Yes	DAH	USGS	1.31	16.68	0.01	0.50	Good	DebrisLight	NONE
2	1980-07-02 12:08	EDT	Yes	DAH	USGS	2.47	16.69	0.00	0.50	Good	Clear	NONE
1	1979-04-24 10:15	EST	Yes	BDG/RM	USGS	4.13	16.72	0.00	1.00	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

2018-05-10 17:50

EDT

Yes

sds

USGS

3.60

17.12

0.00

0.50

Good

Clear

NONE

2017-08-28 12:15

EDT

Yes

cmw

USGS

3.18

17.14

Poor

NONE

2017-06-29 14:45

EDT

Yes

sds

USGS

3.97

17.13

0.00

0.50

Good

NONE

2016-09-23 13:37

EDT

Yes

VFBrown

USGS

1.86

17.14

0.00

0.70

Fair

VegetationLight

NONE

2016-06-15 15:39

EDT

Yes

VFBrown

USGS

1.74

17.10

0.00

0.50

Fair

VegetationModerate

NONE

2015-08-26 14:42

EDT

Yes

bem

USGS

0.51

17.14

0.00

0.50

Poor

NONE

2015-05-27 17:19

EDT

Yes

USGS

2.38

17.58

0.00

0.50

Fair

DebrisLight

NONE

2014-08-08 14:29

EDT

Yes

BSP

USGS

3.05

17.15

0.00

Fair

VegetationLight

NONE

2014-06-25 10:56

EDT

Yes

USGS

3.16

17.16

0.00

0.70

Fair

Clear

NONE

2013-09-06 13:42

EDT

Yes

USGS

1.60

0.01

0.50

Fair

DebrisLight

NONE

2013-08-07 12:31

EDT

Yes

LMH

USGS

2.42

17.15

0.00

0.50

Fair

Clear

NONE

2002-10-07 10:02

EDT

Yes

gkh

USGS

1.51

10.92

0.00

0.60

Good

DebrisLight

NONE

1986-09-09 13:40

EDT

Yes

JFD

USGS

1.83

18.30

-0.01

0.80

Fair

DebrisHeavy

NONE

1986-07-18 13:10

EDT

Yes

JFD

USGS

1.65

17.28

-0.02

0.60

Fair

DebrisHeavy

NONE

1985-09-17 15:20

EDT

Yes

JFD

USGS

1.10

17.33

0.00

0.30

Fair

DebrisHeavy

NONE

1985-08-12 17:00

EDT

Yes

RLU

USGS

2.23

16.38

0.00

0.50

Unspecified

Clear

NONE

1985-04-27 10:30

EST

Yes

USGS

1.82

16.29

0.00

0.50

Good

NONE

1984-09-11 10:40

EDT

Yes

JPC

USGS

2.04

17.30

0.00

0.30

Good

NONE

1983-08-16 09:45

EDT

Yes

GJP

USGS

1.80

16.71

0.00

0.50

Good

DebrisLight

NONE

1983-06-16 15:25

EDT

Yes

JBC

USGS

2.53

16.64

0.00

0.40

Fair

DebrisHeavy

NONE

1982-08-16 10:10

EDT

Yes

USGS

1.73

16.70

0.00

0.50

Good

Clear

NONE

1982-05-13 10:20

EDT

Yes

GJP

USGS

2.92

16.70

0.00

0.40

Good

DebrisLight

NONE

1981-09-25 14:45

EDT

Yes

USGS

3.45

16.62

0.00

0.50

Good

Clear

NONE

1981-07-01 14:17

EDT

Yes

GJP

USGS

1.47

16.66

0.00

0.30

Good

Clear

NONE

1980-09-04 11:46

EDT

Yes

DAH

USGS

1.31

16.68

0.01

0.50

Good

DebrisLight

NONE

1980-07-02 12:08

EDT

Yes

DAH

USGS

2.47

16.69

0.00

0.50

Good

Clear

NONE

1979-04-24 10:15

EST

Yes

BDG/RM

USGS

4.13

16.72

0.00

1.00

Good

Clear

NONE