USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

USGS 12370100 Swan River above Dam near Big Fork, MT

Flathead County, Montana

Hydrologic Unit Code 17010211

Latitude 48°03'21", Longitude 114°01'46" NAD27

Drainage area 735 square miles

Gage datum 3,015 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
24	2010-08-25 11:02:30	MDT	Yes	GRT/DMD	USGS	748	13.81	0.00	0.60	Fair	Clear	NONE
23	2010-07-19 15:01	MDT	Yes	GRT/DMD	USGS	1820	12.32	0.00	0.20	Good	Clear	NONE
22	2010-06-15 13:41	MDT	Yes	GRT/DMD	USGS	4210	10.60	0.02	0.20	Good	Clear	NONE
21	2010-04-15 13:34	MDT	Yes	GRT/FSJ	USGS	795	13.38	0.00	0.40	Fair	Clear	NONE
20	2009-11-09 12:47	MST	Yes	GRT/DMD	USGS	517	13.86	0.00	0.60	Fair	Clear	NONE
19	2009-08-24 14:15	MDT	Yes	GRT/DMD	USGS	662	13.83	0.00	0.00	Fair	Clear	NONE
18	2009-07-15 12:27	MDT	Yes	GRT/DMD	USGS	1670	12.26	0.01	0.20	Fair	Clear	NONE
17	2009-06-03 12:53	MDT	Yes	GRT/DMD	USGS	5440	10.25	0.02	0.20	Good	Clear	NONE
16	2009-04-29 13:06	MDT	Yes	GRT/DMD	USGS	1910	12.15	0.00	0.20	Fair	Clear	NONE
15	2008-08-27 11:36	MDT	Yes	GRT/DMD	USGS	751	13.03	0.00	0.30	Fair	Clear	NONE
14	2008-07-16 13:11	MDT	Yes	GRT	USGS	1990	12.48	0.00	0.20	Good	Clear	NONE
13	2008-06-09 09:11	MDT	Yes	GRT	USGS	3990	10.90	0.00	0.20	Good	Clear	NONE
12	2008-05-22 10:04	MDT	Yes	GRT/DMD	USGS	6410	9.78	0.00	0.20	Good	Clear	NONE
11	2008-05-06 12:59	MDT	Yes	GRT/DMD	USGS	1310	12.60	0.00	0.20	Good	Clear	NONE
10	2008-04-21 09:36	MDT	Yes	GRT/DMD	USGS	963	12.04	0.00	0.20	Good	Clear	NONE
9	2008-04-07 09:54	MDT	Yes	GRT	USGS	464	13.32	0.00	0.20	Fair	Clear	NONE
8	2008-03-10 10:45	MDT	Yes	GRT	USGS	380	13.32	0.00	0.40	Poor	Clear	NONE
7	2008-02-20 13:42	MST	Yes	GRT	USGS	368	31.51	0.00	0.70	Poor	IceShore	NONE
6	2007-12-07 10:38	MST	Yes	GRT	USGS	601	31.26	0.00	0.50	Fair	Clear	NONE
5	2007-10-16 13:11	MDT	Yes	GRT	USGS	430		0.00	0.60	Poor	Clear	NONE
4	2007-08-06 12:07	MDT	Yes	GRT	USGS	545		0.00	0.60	Fair	Clear	NONE
3	2007-07-16 11:28	MDT	Yes	GRT	USGS	931		0.00	0.50	Good	Clear	NONE
2	2007-06-20 11:32	MDT	Yes	GRT/TEC	USGS	2150		0.00	0.20	Good	Clear	NONE
1	2007-06-06 11:32	MDT	Yes	GRT	USGS	3450		0.00	0.20	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

2010-08-25 11:02:30

MDT

Yes

GRT/DMD

USGS

748

13.81

0.00

0.60

Fair

Clear

NONE

2010-07-19 15:01

MDT

Yes

GRT/DMD

USGS

1820

12.32

0.00

0.20

Good

Clear

NONE

2010-06-15 13:41

MDT

Yes

GRT/DMD

USGS

4210

10.60

0.02

0.20

Good

Clear

NONE

2010-04-15 13:34

MDT

Yes

GRT/FSJ

USGS

795

13.38

0.00

0.40

Fair

Clear

NONE

2009-11-09 12:47

MST

Yes

GRT/DMD

USGS

517

13.86

0.00

0.60

Fair

Clear

NONE

2009-08-24 14:15

MDT

Yes

GRT/DMD

USGS

662

13.83

0.00

Fair

Clear

NONE

2009-07-15 12:27

MDT

Yes

GRT/DMD

USGS

1670

12.26

0.01

0.20

Fair

Clear

NONE

2009-06-03 12:53

MDT

Yes

GRT/DMD

USGS

5440

10.25

0.02

0.20

Good

Clear

NONE

2009-04-29 13:06

MDT

Yes

GRT/DMD

USGS

1910

12.15

0.00

0.20

Fair

Clear

NONE

2008-08-27 11:36

MDT

Yes

GRT/DMD

USGS

751

13.03

0.00

0.30

Fair

Clear

NONE

2008-07-16 13:11

MDT

Yes

GRT

USGS

1990

12.48

0.00

0.20

Good

Clear

NONE

2008-06-09 09:11

MDT

Yes

GRT

USGS

3990

10.90

0.00

0.20

Good

Clear

NONE

2008-05-22 10:04

MDT

Yes

GRT/DMD

USGS

6410

9.78

0.00

0.20

Good

Clear

NONE

2008-05-06 12:59

MDT

Yes

GRT/DMD

USGS

1310

12.60

0.00

0.20

Good

Clear

NONE

2008-04-21 09:36

MDT

Yes

GRT/DMD

USGS

963

12.04

0.00

0.20

Good

Clear

NONE

2008-04-07 09:54

MDT

Yes

GRT

USGS

464

13.32

0.00

0.20

Fair

Clear

NONE

2008-03-10 10:45

MDT

Yes

GRT

USGS

380

13.32

0.00

0.40

Poor

Clear

NONE

2008-02-20 13:42

MST

Yes

GRT

USGS

368

31.51

0.00

0.70

Poor

IceShore

NONE

2007-12-07 10:38

MST

Yes

GRT

USGS

601

31.26

0.00

0.50

Fair

Clear

NONE

2007-10-16 13:11

MDT

Yes

GRT

USGS

430

0.00

0.60

Poor

Clear

NONE

2007-08-06 12:07

MDT

Yes

GRT

USGS

545

0.00

0.60

Fair

Clear

NONE

2007-07-16 11:28

MDT

Yes

GRT

USGS

931

0.00

0.50

Good

Clear

NONE

2007-06-20 11:32

MDT

Yes

GRT/TEC

USGS

2150

0.00

0.20

Good

Clear

NONE

2007-06-06 11:32

MDT

Yes

GRT

USGS

3450

0.00

0.20

Good

Clear

NONE