USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

USGS 01401595 Rock Brook near Blawenburg NJ

Somerset County, New Jersey

Hydrologic Unit Code 02030105

Latitude 40°24'47", Longitude 74°41'02" NAD83

Drainage area 9.03 square miles

Gage datum 63.45 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
39	2024-05-16 13:22	EDT	Yes	rwa	USGS	7.12	1.02	0.00		Poor	DebrisLight	NONE
38	2024-04-03 12:45:03	EDT	Yes	jts/pwb	USGS	323	2.94	0.38	0.72	Fair	Clear	NONE
37	2018-05-27 14:03:02	EDT	Yes	rwa/jcs	USGS	358	3.43			Poor	Unspecifed	NONE
36	2016-09-19 13:51	EDT	Yes	bem	USGS	5.14	0.87	0.00	0.50	Good	Clear	NONE
35	2014-12-09 11:26	EST	Yes	MN/JMB	USGS	464	3.92	-0.07	0.30	Poor	DebrisModerate	NONE
34	2012-07-06 14:34	EDT	Yes	VFB	USGS	0.62	1.14	0.00	1.00	Poor	DebrisHeavy	NONE
33	2009-12-09 13:24	EST	Yes	JCS/CS	USGS	407	3.73	-0.04	0.20	Good	DebrisLight	NONE
32	2008-07-24 08:40	EDT	Yes	BSP/JVC	USGS	46.0	2.04	-0.02	0.40	Good	Clear	NONE
31	2007-07-20 09:00	EDT	Yes	RWA/PWB	USGS	1.10	1.08	0.00	0.50	Fair	Clear	NONE
30	2006-11-13 14:16	EST	Yes	arv	USGS	29.0	2.42	0.01	0.30	Fair	Clear	NONE
29	2006-11-08 15:30	EST	Yes	JCS/BSP	USGS	1160	4.50	-0.38	0.80	Poor	DebrisLight	NONE
28	2005-10-25 14:08	EDT	Yes	BSP	USGS	173	3.46	-0.02	0.80	Good	Clear	NONE
27	2005-07-08 14:14	EDT	Yes	BSP/ARP	USGS	94.1	2.66	0.07	0.50	Fair	Clear	NONE
26	2003-12-17 13:45	EST	Yes	BSP	USGS	207	3.07	-0.06	0.60	Fair	DebrisLight	NONE
25	2003-09-23 11:03	EDT	Yes	BSP	USGS	10.1	1.52	0.00	0.70	Fair	DebrisModerate	NONE
24	2003-05-26 11:22	EDT	Yes	btw/jcs	USGS	304	3.32	0.00	0.40	Fair	Clear	NONE
23	2002-04-29 09:09	EDT	Yes	JCS	USGS	32.4	2.07	-0.02	0.60	Good	DebrisModerate	NONE
22	1999-09-16 -- --	--	Yes	RLM	USGS	4300	9.20			Fair		NONE
21	1999-03-11 11:45	EST	Yes	ncg	USGS	8.90		0.00	1.00	Fair	Clear	NONE
20	1996-10-19 11:05	EDT	Yes	JFD/JJS	USGS	811	4.36	0.01	0.10	Poor	DebrisHeavy	NONE
19	1996-10-19 09:40	EDT	Yes	JFD/JJS	USGS	604	3.68	0.40	0.80	Poor	DebrisHeavy	NONE
18	1994-03-11 11:01	EST	Yes	DSK	USGS	107	1.86	0.00	0.70	Good	Clear	NONE
17	1994-03-10 14:07	EST	Yes	DSK/EWM	USGS	676	3.68	-0.24	1.60	Fair	Clear	NONE
16	1992-02-27 15:30	EST	Yes	DSK	USGS	13.8	0.80	0.00	0.40	Good	Clear	NONE
15	1989-09-21 14:25	EDT	Yes	NWL	USGS	57.4	1.84	-0.01	0.50	Good	Clear	NONE
14	1989-05-10 15:30	EDT	Yes	GRO	USGS	463	3.28	-0.28	1.50	Fair	Clear	NONE
13	1987-11-19 13:40	EST	Yes	GLC	USGS	7.16	1.10	0.00	0.30	Good	Clear	NONE
12	1987-08-13 11:05	EDT	Yes	GLC	USGS	3.69	0.98	-0.01	0.50	Good	DebrisLight	NONE
11	1986-11-21 10:30	EST	Yes	JFD/TSR	USGS	91.8	2.09	-0.02	0.50	Good		NONE
10	1985-12-27 -- --	--	Yes	RSC	USGS	4.87	1.17	0.00	0.70	Good	Clear	NONE
9	1985-09-27 -- --	--	Yes	BNS/JSC	USGS	860	4.15	-0.40	0.50	Unspecified		NONE
8	1984-05-31 -- --	--	Yes	GJP	USGS	134	2.02	-0.04	0.40	Good	DebrisLight	NONE
7	1983-04-24 -- --	--	Yes	TGT	USGS	194	2.32			Good	Clear	NONE
6	1982-12-21 -- --	--	Yes	GJP	USGS	5.57	0.71			Good	DebrisModerate	NONE
5	1975-07-15 -- --	--	Yes	GRM	USGS	176	2.16			Good	Clear	NONE
4A	1971-08-28 -- --	--	Yes	egm/sll	USGS	4530	10.00			Fair		NONE
4	1967-04-27 -- --	--	Yes	TRG	USGS	121	2.35	0.02	0.30	Fair	DebrisModerate	NONE
3	1967-03-07 -- --	--	Yes	TGR/JFK	USGS	1100	5.84			Unspecified		NONE
2	1966-09-22 -- --	--	Yes	EGM	USGS	28.9	3.00	-0.02	0.70	Good		NONE
1	1966-09-21 -- --	--	Yes	RSC	USGS	399	3.69	0.40	2.00	Fair	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

2024-05-16 13:22

EDT

Yes

rwa

USGS

7.12

1.02

0.00

Poor

DebrisLight

NONE

2024-04-03 12:45:03

EDT

Yes

jts/pwb

USGS

323

2.94

0.38

0.72

Fair

Clear

NONE

2018-05-27 14:03:02

EDT

Yes

rwa/jcs

USGS

358

3.43

Poor

Unspecifed

NONE

2016-09-19 13:51

EDT

Yes

bem

USGS

5.14

0.87

0.00

0.50

Good

Clear

NONE

2014-12-09 11:26

EST

Yes

MN/JMB

USGS

464

3.92

-0.07

0.30

Poor

DebrisModerate

NONE

2012-07-06 14:34

EDT

Yes

VFB

USGS

0.62

1.14

0.00

1.00

Poor

DebrisHeavy

NONE

2009-12-09 13:24

EST

Yes

JCS/CS

USGS

407

3.73

-0.04

0.20

Good

DebrisLight

NONE

2008-07-24 08:40

EDT

Yes

BSP/JVC

USGS

46.0

2.04

-0.02

0.40

Good

Clear

NONE

2007-07-20 09:00

EDT

Yes

RWA/PWB

USGS

1.10

1.08

0.00

0.50

Fair

Clear

NONE

2006-11-13 14:16

EST

Yes

arv

USGS

29.0

2.42

0.01

0.30

Fair

Clear

NONE

2006-11-08 15:30

EST

Yes

JCS/BSP

USGS

1160

4.50

-0.38

0.80

Poor

DebrisLight

NONE

2005-10-25 14:08

EDT

Yes

BSP

USGS

173

3.46

-0.02

0.80

Good

Clear

NONE

2005-07-08 14:14

EDT

Yes

BSP/ARP

USGS

94.1

2.66

0.07

0.50

Fair

Clear

NONE

2003-12-17 13:45

EST

Yes

BSP

USGS

207

3.07

-0.06

0.60

Fair

DebrisLight

NONE

2003-09-23 11:03

EDT

Yes

BSP

USGS

10.1

1.52

0.00

0.70

Fair

DebrisModerate

NONE

2003-05-26 11:22

EDT

Yes

btw/jcs

USGS

304

3.32

0.00

0.40

Fair

Clear

NONE

2002-04-29 09:09

EDT

Yes

JCS

USGS

32.4

2.07

-0.02

0.60

Good

DebrisModerate

NONE

1999-09-16 -- --

Yes

RLM

USGS

4300

9.20

Fair

NONE

1999-03-11 11:45

EST

Yes

ncg

USGS

8.90

0.00

1.00

Fair

Clear

NONE

1996-10-19 11:05

EDT

Yes

JFD/JJS

USGS

811

4.36

0.01

0.10

Poor

DebrisHeavy

NONE

1996-10-19 09:40

EDT

Yes

JFD/JJS

USGS

604

3.68

0.40

0.80

Poor

DebrisHeavy

NONE

1994-03-11 11:01

EST

Yes

DSK

USGS

107

1.86

0.00

0.70

Good

Clear

NONE

1994-03-10 14:07

EST

Yes

DSK/EWM

USGS

676

3.68

-0.24

1.60

Fair

Clear

NONE

1992-02-27 15:30

EST

Yes

DSK

USGS

13.8

0.80

0.00

0.40

Good

Clear

NONE

1989-09-21 14:25

EDT

Yes

NWL

USGS

57.4

1.84

-0.01

0.50

Good

Clear

NONE

1989-05-10 15:30

EDT

Yes

GRO

USGS

463

3.28

-0.28

1.50

Fair

Clear

NONE

1987-11-19 13:40

EST

Yes

GLC

USGS

7.16

1.10

0.00

0.30

Good

Clear

NONE

1987-08-13 11:05

EDT

Yes

GLC

USGS

3.69

0.98

-0.01

0.50

Good

DebrisLight

NONE

1986-11-21 10:30

EST

Yes

JFD/TSR

USGS

91.8

2.09

-0.02

0.50

Good

NONE

1985-12-27 -- --

Yes

RSC

USGS

4.87

1.17

0.00

0.70

Good

Clear

NONE

1985-09-27 -- --

Yes

BNS/JSC

USGS

860

4.15

-0.40

0.50

Unspecified

NONE

1984-05-31 -- --

Yes

GJP

USGS

134

2.02

-0.04

0.40

Good

DebrisLight

NONE

1983-04-24 -- --

Yes

TGT

USGS

194

2.32

Good

Clear

NONE

1982-12-21 -- --

Yes

GJP

USGS

5.57

0.71

Good

DebrisModerate

NONE

1975-07-15 -- --

Yes

GRM

USGS

176

2.16

Good

Clear

NONE

1971-08-28 -- --

Yes

egm/sll

USGS

4530

10.00

Fair

NONE

1967-04-27 -- --

Yes

TRG

USGS

121

2.35

0.02

0.30

Fair

DebrisModerate

NONE

1967-03-07 -- --

Yes

TGR/JFK

USGS

1100

5.84

Unspecified

NONE

1966-09-22 -- --

Yes

EGM

USGS

28.9

3.00

-0.02

0.70

Good

NONE

1966-09-21 -- --

Yes

RSC

USGS

399

3.69

0.40

2.00

Fair

Clear

NONE