USGS Surface Water for USA: Streamflow Measurements

USGS Home
Contact USGS
Search USGS

National Water Information System: Web Interface

USGS Water Resources

Data Category:
Geographic Area:

Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.

Click to hideNews Bulletins

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 0164425950 HORSEPEN RUN AB HORSEPEN RUN TRIB NR HERNDON, VA

Fairfax County, Virginia

Hydrologic Unit Code 02070008

Latitude 38°55'21.35", Longitude 77°24'20.78" NAD83

Drainage area 1.19 square miles

Gage datum 305.63 feet above NAVD88

**Output formats**
HTML table with channel data
HTML table without channel data
Tab-separated data with channel data
Tab-separated data without channel data
Graph of data
Reselect output format

Output formats

HTML table with channel data

HTML table without channel data

Tab-separated data with channel data

Tab-separated data without channel data

Graph of data

Reselect output format

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
29	2024-10-16 12:43	EDT	Yes	TJT/RAM	USGS	0.01	0.77	0.00	0.35	Poor	DebrisHeavy	NONE
28	2024-08-20 16:23:05	EDT	Yes	TJT/RAM	USGS	0.08	0.78	0.00	0.38	Poor	DebrisModerate	NONE
27	2024-04-30 12:23:04	EDT	Yes	EDI/NJB	USGS	0.10	0.84	0.00	0.60	Poor	DebrisLight	NONE
27S	2024-03-09 19:15	EST	Yes	JKL	USGS	118	2.60			Unknown		NONE
26S	2024-01-28 05:15	EST	Yes	JKL	USGS	190	3.76			Unknown		NONE
26	2022-05-23 11:32	EDT	Yes	JRD	USGS	2.46	1.14			Fair		NONE
25	2021-10-12 15:35:02	EDT	Yes	BWD	USGS	0.06	0.82	0.00	0.22	Poor	DebrisModerate	NONE
24	2021-06-14 14:10:01	EDT	Yes	BWD	USGS	0.42	0.85	0.00	0.50	Poor	Clear	NONE
23	2021-04-13 10:02	EDT	Yes	TDC	USGS	1.31				Good		NONE
22	2021-02-09 13:27	EST	Yes	TDC	USGS	1.47				Good		NONE
21	2021-02-05 11:49:54	EST	Yes	BWD	USGS	1.00	0.87	0.00	0.42	Poor	Clear	NONE
20	2020-09-16 13:59	EDT	Yes	BWD	USGS	0.28	0.73	0.00	0.50	Poor	Clear	NONE
23S	2020-08-16 03:15	EDT	Yes	JKL	USGS	119	3.29			Fair		NONE
22S	2020-07-22 17:45	EDT	Yes	JKL	USGS	596	5.48			Fair		NONE
22E	2018-05-14 19:45	EDT	Yes	JMD	USGS	233	4.37			Unspecified		NONE
19	2018-03-20 10:19	EDT	Yes	JMD	USGS	1.57	0.94	0.00	0.40	Fair	DebrisLight	NONE
18	2018-01-30 11:20:30	EST	Yes	JMD/HDR	USGS	0.15	0.64	0.00	0.40	Poor	DebrisLight	NONE
21S	2017-08-11 22:15	EDT	Yes	JMD	USGS	55.0	2.16			Poor		NONE
20S	2017-08-03 18:15	EDT	Yes	JMD	USGS	120	3.42			Poor		NONE
19S	2017-07-29 01:15	EDT	Yes	JMD	USGS	137	3.84			Poor		NONE
18S	2017-05-11 10:45	EDT	Yes	JMD	USGS	101	2.90			Poor		NONE
17S	2017-05-05 09:45	EDT	Yes	JMD	USGS	80.0	2.56			Poor		NONE
16S	2017-04-06 14:00	EDT	Yes	JMD	USGS	99.0	3.16			Poor		NONE
15S	2017-04-06 14:00	EDT	Yes	JMD	USGS	110	2.90			Poor		NONE
17	2017-04-06 10:41	EDT	Yes	JMD	USGS	4.23	1.07	0.02	0.30	Fair	Clear	NONE
16	2017-04-06 10:22	EDT	Yes	JMD	USGS	3.95	1.04	0.04	0.30	Fair	Clear	NONE
15	2017-04-06 10:04	EDT	Yes	JMD	USGS	2.58	0.99	0.10		Fair	Clear	NONE
14	2015-11-10 14:57:30	EST	Yes	TPN	USGS	1.74	1.16			Excellent		NONE
13	2015-11-02 14:35	EST	Yes	TPN	USGS	0.06	0.94			Poor		NONE
12	2015-09-30 09:38	EDT	Yes	CCR	USGS	1.56	1.07	0.02	0.50	Fair	DebrisHeavy	NONE
11	2014-02-11 17:28:30	EST	Yes	jsw ajp	USGS	0.82	0.68			Good		NONE
10	2013-11-27 10:47:30	EST	Yes	JMD	USGS	10.6	1.26	-0.02	0.40	Good	Clear	NONE
9	2013-11-27 09:01	EST	Yes	JMD	USGS	14.7	1.33	-0.02	0.30	Good	Clear	NONE
8	2013-11-27 08:37:30	EST	Yes	JMD	USGS	15.4	1.36	-0.03	0.30	Fair	Clear	NONE
7	2013-11-27 08:16	EST	Yes	JMD	USGS	16.3	1.39	-0.02	0.30	Fair	Clear	NONE
6	2013-11-27 07:56	EST	Yes	JMD	USGS	17.4	1.42	-0.05	0.20	Fair	Clear	NONE
5	2013-11-27 07:40	EST	Yes	JMD	USGS	18.9	1.47	-0.05	0.30	Fair	Clear	NONE
3	2013-11-26 15:51:30	EST	Yes	JMD/RRL	USGS	0.09	0.58	0.00	0.30	Poor	DebrisLight	NONE
4	2013-11-26 15:47:30	EST	Yes	JMD/RRL	USGS	0.14	0.58	0.00	0.30	Poor	DebrisLight	NONE
2	2013-05-07 16:33	EDT	Yes	CCR/JMD	USGS	6.46	0.98	0.04	0.30	Good	Unspecifed	NONE
1	2013-04-03 16:20	EDT	Yes	CCR/JMD	USGS	0.46	0.66	0.00	0.50	Fair	VegetationLight	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

2024-10-16 12:43

EDT

Yes

TJT/RAM

USGS

0.01

0.77

0.00

0.35

Poor

DebrisHeavy

NONE

2024-08-20 16:23:05

EDT

Yes

TJT/RAM

USGS

0.08

0.78

0.00

0.38

Poor

DebrisModerate

NONE

2024-04-30 12:23:04

EDT

Yes

EDI/NJB

USGS

0.10

0.84

0.00

0.60

Poor

DebrisLight

NONE

27S

2024-03-09 19:15

EST

Yes

JKL

USGS

118

2.60

Unknown

NONE

26S

2024-01-28 05:15

EST

Yes

JKL

USGS

190

3.76

Unknown

NONE

2022-05-23 11:32

EDT

Yes

JRD

USGS

2.46

1.14

Fair

NONE

2021-10-12 15:35:02

EDT

Yes

BWD

USGS

0.06

0.82

0.00

0.22

Poor

DebrisModerate

NONE

2021-06-14 14:10:01

EDT

Yes

BWD

USGS

0.42

0.85

0.00

0.50

Poor

Clear

NONE

2021-04-13 10:02

EDT

Yes

TDC

USGS

1.31

Good

NONE

2021-02-09 13:27

EST

Yes

TDC

USGS

1.47

Good

NONE

2021-02-05 11:49:54

EST

Yes

BWD

USGS

1.00

0.87

0.00

0.42

Poor

Clear

NONE

2020-09-16 13:59

EDT

Yes

BWD

USGS

0.28

0.73

0.00

0.50

Poor

Clear

NONE

23S

2020-08-16 03:15

EDT

Yes

JKL

USGS

119

3.29

Fair

NONE

22S

2020-07-22 17:45

EDT

Yes

JKL

USGS

596

5.48

Fair

NONE

22E

2018-05-14 19:45

EDT

Yes

JMD

USGS

233

4.37

Unspecified

NONE

2018-03-20 10:19

EDT

Yes

JMD

USGS

1.57

0.94

0.00

0.40

Fair

DebrisLight

NONE

2018-01-30 11:20:30

EST

Yes

JMD/HDR

USGS

0.15

0.64

0.00

0.40

Poor

DebrisLight

NONE

21S

2017-08-11 22:15

EDT

Yes

JMD

USGS

55.0

2.16

Poor

NONE

20S

2017-08-03 18:15

EDT

Yes

JMD

USGS

120

3.42

Poor

NONE

19S

2017-07-29 01:15

EDT

Yes

JMD

USGS

137

3.84

Poor

NONE

18S

2017-05-11 10:45

EDT

Yes

JMD

USGS

101

2.90

Poor

NONE

17S

2017-05-05 09:45

EDT

Yes

JMD

USGS

80.0

2.56

Poor

NONE

16S

2017-04-06 14:00

EDT

Yes

JMD

USGS

99.0

3.16

Poor

NONE

15S

2017-04-06 14:00

EDT

Yes

JMD

USGS

110

2.90

Poor

NONE

2017-04-06 10:41

EDT

Yes

JMD

USGS

4.23

1.07

0.02

0.30

Fair

Clear

NONE

2017-04-06 10:22

EDT

Yes

JMD

USGS

3.95

1.04

0.04

0.30

Fair

Clear

NONE

2017-04-06 10:04

EDT

Yes

JMD

USGS

2.58

0.99

0.10

Fair

Clear

NONE

2015-11-10 14:57:30

EST

Yes

TPN

USGS

1.74

1.16

Excellent

NONE

2015-11-02 14:35

EST

Yes

TPN

USGS

0.06

0.94

Poor

NONE

2015-09-30 09:38

EDT

Yes

CCR

USGS

1.56

1.07

0.02

0.50

Fair

DebrisHeavy

NONE

2014-02-11 17:28:30

EST

Yes

jsw ajp

USGS

0.82

0.68

Good

NONE

2013-11-27 10:47:30

EST

Yes

JMD

USGS

10.6

1.26

-0.02

0.40

Good

Clear

NONE

2013-11-27 09:01

EST

Yes

JMD

USGS

14.7

1.33

-0.02

0.30

Good

Clear

NONE

2013-11-27 08:37:30

EST

Yes

JMD

USGS

15.4

1.36

-0.03

0.30

Fair

Clear

NONE

2013-11-27 08:16

EST

Yes

JMD

USGS

16.3

1.39

-0.02

0.30

Fair

Clear

NONE

2013-11-27 07:56

EST

Yes

JMD

USGS

17.4

1.42

-0.05

0.20

Fair

Clear

NONE

2013-11-27 07:40

EST

Yes

JMD

USGS

18.9

1.47

-0.05

0.30

Fair

Clear

NONE

2013-11-26 15:51:30

EST

Yes

JMD/RRL

USGS

0.09

0.58

0.00

0.30

Poor

DebrisLight

NONE

2013-11-26 15:47:30

EST

Yes

JMD/RRL

USGS

0.14

0.58

0.00

0.30

Poor

DebrisLight

NONE

2013-05-07 16:33

EDT

Yes

CCR/JMD

USGS

6.46

0.98

0.04

0.30

Good

Unspecifed

NONE

2013-04-03 16:20

EDT

Yes

CCR/JMD

USGS

0.46

0.66

0.00

0.50

Fair

VegetationLight

NONE