USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

USGS 01190070 CONNECTICUT RIVER AT HARTFORD, CT

Hartford County, Connecticut

Hydrologic Unit Code 01080205

Latitude 41°46'08.74", Longitude 72°40'03.18" NAD83

Drainage area 10,487 square miles

Gage datum -0.85 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
30	2024-03-14 10:38:08	EDT	Yes	NPP/CJG	USGS	53900	13.86	-0.02	0.25	Good	Clear	NONE
29	2023-07-13 12:36:05	EDT	Yes	NPP/JRD	USGS	91600	20.78	-0.01	0.25	Fair	Clear	NONE
28	2023-07-13 12:10:09	EDT	Yes	NPP/JRD	USGS	90500	20.80	-0.01	0.25	Poor	Clear	NONE
27	2023-04-26 16:05:08	EDT	Yes	SCB/NPP	USGS	52200	13.72	-0.03	0.25	Poor	Clear	NONE
26	2021-07-23 15:57	EDT	Yes	SCB/NPP	USGS	42700	10.89	0.02	0.25	Fair	Clear	NONE
25	2019-12-16 10:43:43	EST	Yes	PJM/SCB	USGS	68300	15.55	0.03	0.40	Good		NONE
24	2019-04-19 10:31:04	EDT	Yes	PJM	USGS	83300	18.94	-0.01	0.75	Good		NONE
23	2018-04-20 11:43	EDT	Yes	NPP/TCS	USGS	52200	12.76	-0.03	0.50	Good		NONE
22	2018-04-06 11:57:08	EDT	Yes	DJJ/TCS	USGS	36800	8.96	0.01	0.25	Fair	Clear	NONE
21	2017-04-14 13:38:05	EDT	Yes	JEH/PJM	USGS	68900	15.80	0.00	0.40	Good	Clear	NONE
20	2014-04-17 10:23:09	EDT	Yes	JAO/DGT	USGS	94300	19.73			Good		NONE
19	2011-08-31 09:40	EDT	Yes	jao/jmp	USGS	109000	23.86		0.50	Good	Unspecifed	NONE
18	2010-04-01 16:30	EDT	Yes	TCS/GKH	USGS	101000	21.28	-0.01		Good	Unspecifed	NONE
17	2009-04-07 10:52	EDT	Yes	tcs/jao	USGS	69900	16.60	-0.02		Good	Clear	NONE
16	2007-04-18 10:13	EDT	Yes	GKH/JAO	USGS	120000	23.34	0.01	0.80	Good	Clear	NONE
15	2005-04-05 11:17	EDT	Yes	TCS/JM	USGS	101000	22.03	0.01	0.50	Fair	Unspecifed	NONE
14	2005-04-05 10:32	EDT	Yes	TCS/JM	USGS	96700	22.02	0.01	0.50	Fair	Unspecifed	NONE
13	2003-04-02 13:55	EST	Yes	jao	USGS	76700	18.21	-0.04	1.00	Good		NONE
12	2001-04-27 12:24	EDT	Yes	jao/ck	USGS	89600	19.87	-0.02	0.80	Good	Unspecifed	NONE
11	2000-04-26 10:04	EDT	Yes	rgk/jao	USGS	51900	12.82			Good	Clear	NONE
10	2000-04-03 10:13	EDT	Yes	rgk/jao	USGS	42700	10.21			Good	Clear	NONE
9	1987-04-02 -- --	--	Yes	BSD/GPR	USGS	134000	34.47	0.09	1.80	Good	Unspecifed	NONE
8	1986-03-24 -- --	--	Yes	BSD/TMC	USGS	51800	2.74	-0.13	1.50	Good	Clear	NONE
7	1984-06-07 -- --	--	Yes	LAW/BSD	USGS	61600	15.55	0.05	1.00	Good	Clear	NONE
6	1984-06-01 -- --	--	Yes	LAW/JMC	USGS	184000	31.58	0.08	2.30	Good	Clear	NONE
5	1983-05-09 -- --	--	Yes	GPR/BSD	USGS	42900	11.82	-0.10	0.80	Good	Clear	NONE
4	1983-05-09 -- --	--	Yes	BSD/GPR	USGS	43800	11.95	-0.15	1.30	Good	Clear	NONE
3	1937-05-20 06:25	EST	Yes	T/F	USGS	63800	16.86	-0.37	5.00	Good		NONE
2	1937-05-18 07:15	EST	Yes	LWF/MPT	USGS	79700	20.02			Unspecified		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

2024-03-14 10:38:08

EDT

Yes

NPP/CJG

USGS

53900

13.86

-0.02

0.25

Good

Clear

NONE

2023-07-13 12:36:05

EDT

Yes

NPP/JRD

USGS

91600

20.78

-0.01

0.25

Fair

Clear

NONE

2023-07-13 12:10:09

EDT

Yes

NPP/JRD

USGS

90500

20.80

-0.01

0.25

Poor

Clear

NONE

2023-04-26 16:05:08

EDT

Yes

SCB/NPP

USGS

52200

13.72

-0.03

0.25

Poor

Clear

NONE

2021-07-23 15:57

EDT

Yes

SCB/NPP

USGS

42700

10.89

0.02

0.25

Fair

Clear

NONE

2019-12-16 10:43:43

EST

Yes

PJM/SCB

USGS

68300

15.55

0.03

0.40

Good

NONE

2019-04-19 10:31:04

EDT

Yes

PJM

USGS

83300

18.94

-0.01

0.75

Good

NONE

2018-04-20 11:43

EDT

Yes

NPP/TCS

USGS

52200

12.76

-0.03

0.50

Good

NONE

2018-04-06 11:57:08

EDT

Yes

DJJ/TCS

USGS

36800

8.96

0.01

0.25

Fair

Clear

NONE

2017-04-14 13:38:05

EDT

Yes

JEH/PJM

USGS

68900

15.80

0.00

0.40

Good

Clear

NONE

2014-04-17 10:23:09

EDT

Yes

JAO/DGT

USGS

94300

19.73

Good

NONE

2011-08-31 09:40

EDT

Yes

jao/jmp

USGS

109000

23.86

0.50

Good

Unspecifed

NONE

2010-04-01 16:30

EDT

Yes

TCS/GKH

USGS

101000

21.28

-0.01

Good

Unspecifed

NONE

2009-04-07 10:52

EDT

Yes

tcs/jao

USGS

69900

16.60

-0.02

Good

Clear

NONE

2007-04-18 10:13

EDT

Yes

GKH/JAO

USGS

120000

23.34

0.01

0.80

Good

Clear

NONE

2005-04-05 11:17

EDT

Yes

TCS/JM

USGS

101000

22.03

0.01

0.50

Fair

Unspecifed

NONE

2005-04-05 10:32

EDT

Yes

TCS/JM

USGS

96700

22.02

0.01

0.50

Fair

Unspecifed

NONE

2003-04-02 13:55

EST

Yes

jao

USGS

76700

18.21

-0.04

1.00

Good

NONE

2001-04-27 12:24

EDT

Yes

jao/ck

USGS

89600

19.87

-0.02

0.80

Good

Unspecifed

NONE

2000-04-26 10:04

EDT

Yes

rgk/jao

USGS

51900

12.82

Good

Clear

NONE

2000-04-03 10:13

EDT

Yes

rgk/jao

USGS

42700

10.21

Good

Clear

NONE

1987-04-02 -- --

Yes

BSD/GPR

USGS

134000

34.47

0.09

1.80

Good

Unspecifed

NONE

1986-03-24 -- --

Yes

BSD/TMC

USGS

51800

2.74

-0.13

1.50

Good

Clear

NONE

1984-06-07 -- --

Yes

LAW/BSD

USGS

61600

15.55

0.05

1.00

Good

Clear

NONE

1984-06-01 -- --

Yes

LAW/JMC

USGS

184000

31.58

0.08

2.30

Good

Clear

NONE

1983-05-09 -- --

Yes

GPR/BSD

USGS

42900

11.82

-0.10

0.80

Good

Clear

NONE

1983-05-09 -- --

Yes

BSD/GPR

USGS

43800

11.95

-0.15

1.30

Good

Clear

NONE

1937-05-20 06:25

EST

Yes

T/F

USGS

63800

16.86

-0.37

5.00

Good

NONE

1937-05-18 07:15

EST

Yes

LWF/MPT

USGS

79700

20.02

Unspecified

NONE