USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

USGS 400118105134600 BOULDER CREEK AT COTTONWOOD GROVE NR BOULDER CO.

Boulder County, Colorado

Hydrologic Unit Code 10190005

Latitude 40°01'18", Longitude 105°13'46" NAD27

Gage datum 5,210 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
23	1991-11-25 13:15	MST	Yes	RAK	USGS	2.50	1.61	0.00	0.50	Fair	Clear	NONE
22	1991-09-12 11:35	MDT	Yes	RAK	USGS	18.1	1.93	0.00	0.40	Good	Clear	NONE
21	1991-07-11 10:30	MDT	Yes	RAK	USGS	85.7	2.49	-0.01	0.50	Fair	Clear	NONE
20	1991-06-18 09:15	MDT	Yes	RAK	USGS	324	3.54	-0.01	0.80	Good	Clear	NONE
19	1991-06-05 10:05	MDT	Yes	RAK	USGS	145	2.86	0.00	0.50	Good	Clear	NONE
18	1991-05-10 10:25	MDT	Yes	RAK	USGS	28.5	2.27	0.00	0.40	Fair	Clear	NONE
17	1991-04-04 11:10	MST	Yes	GBO	USGS	2.31	1.81	-0.01	0.50	Fair	DebrisLight	NONE
16	1991-03-15 12:20	MST	Yes	RAK	USGS	2.00	1.80	0.01	0.30	Good	Clear	NONE
15	1991-02-08 10:08	MST	Yes	RAK	USGS	4.88	1.90	-0.02	0.50	Fair	Clear	NONE
14	1990-12-11 10:10	MST	Yes	RAK	USGS	2.35	1.75	0.00	0.30	Fair	Clear	NONE
13	1990-11-01 10:30	MST	Yes	RAK/RAH	USGS	13.1	2.05	0.00	0.50	Fair	Clear	NONE
12	1990-09-17 11:50	MDT	Yes	RAK/GMC	USGS	20.9	2.18	0.01	0.50	Fair	Clear	NONE
11	1990-07-23 10:20	MDT	Yes	RAK/GMC	USGS	58.3	2.56	-0.01	0.50	Fair	Clear	NONE
10	1990-07-16 11:30	MDT	Yes	RAK	USGS	45.0	2.47	0.00	0.50	Fair	Clear	NONE
9	1990-06-26 10:05	MDT	Yes	RSW/RAK	USGS	210	3.35	-0.02	0.80	Fair	Clear	NONE
8	1990-06-18 10:20	MDT	Yes	RSW/RAK	USGS	215	3.41	-0.02	0.70	Fair	Clear	NONE
7	1990-03-20 09:45	MST	Yes	RSW/GMC	USGS	1.64	1.73	0.00	0.30	Unspecified	Clear	NONE
6	1990-01-18 10:00	MST	Yes	RSW/GMC	USGS	7.49	1.96	0.00	0.50	Unspecified	Clear	NONE
211	1990-01-10 10:10	MST	Yes	BW	USGS	9.68	1.99			Unspecified		NONE
210	1989-12-12 13:20	MST	Yes	BW	USGS	8.18	1.80			Unspecified		NONE
209	1989-11-30 16:03	MST	Yes	LM	USGS	6.81	1.74			Unspecified		NONE
5	1989-11-21 12:30	MST	Yes	GMC	USGS	11.0	1.80	0.00	1.00	Unspecified	Clear	NONE
208	1989-11-16 12:08	MST	Yes	LM	USGS	3.98	1.64			Unspecified		NONE
207	1989-11-09 17:03	MST	Yes	LM	USGS	4.91	1.65			Unspecified		NONE
206	1989-11-02 13:47	MST	Yes	LM	USGS	8.10	1.76			Unspecified		NONE
205	1989-10-26 15:50	MDT	Yes	LM	USGS	4.07	1.65			Unspecified		NONE
4	1989-10-19 09:50	MDT	Yes	RSW/GMC	USGS	10.8	1.83	-0.01	0.70	Unspecified	Clear	NONE
204	1989-10-12 09:25	MDT	Yes	LM	USGS	3.04	1.60			Unspecified		NONE
203	1989-10-05 13:55	MDT	Yes	LM	USGS	4.07	1.64			Unspecified		NONE
3	1989-09-29 09:50	MDT	Yes	RSW/GMC	USGS	2.32	1.57	-0.01	0.40	Unspecified	Clear	NONE
202	1989-09-21 15:00	MDT	Yes	LM	USGS	5.24	1.65			Unspecified	Clear	NONE
2	1989-09-21 10:00	MDT	Yes	RSW/GMC	USGS	5.20	1.70	-0.01	0.70	Unspecified	Clear	NONE
201	1989-09-14 15:00	MDT	Yes	LM	USGS	17.2	1.86			Unspecified		NONE
1	1989-08-29 13:35	MDT	Yes	GMC	USGS	11.0	1.79	0.00	0.50	Unspecified	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

1991-11-25 13:15

MST

Yes

RAK

USGS

2.50

1.61

0.00

0.50

Fair

Clear

NONE

1991-09-12 11:35

MDT

Yes

RAK

USGS

18.1

1.93

0.00

0.40

Good

Clear

NONE

1991-07-11 10:30

MDT

Yes

RAK

USGS

85.7

2.49

-0.01

0.50

Fair

Clear

NONE

1991-06-18 09:15

MDT

Yes

RAK

USGS

324

3.54

-0.01

0.80

Good

Clear

NONE

1991-06-05 10:05

MDT

Yes

RAK

USGS

145

2.86

0.00

0.50

Good

Clear

NONE

1991-05-10 10:25

MDT

Yes

RAK

USGS

28.5

2.27

0.00

0.40

Fair

Clear

NONE

1991-04-04 11:10

MST

Yes

GBO

USGS

2.31

1.81

-0.01

0.50

Fair

DebrisLight

NONE

1991-03-15 12:20

MST

Yes

RAK

USGS

2.00

1.80

0.01

0.30

Good

Clear

NONE

1991-02-08 10:08

MST

Yes

RAK

USGS

4.88

1.90

-0.02

0.50

Fair

Clear

NONE

1990-12-11 10:10

MST

Yes

RAK

USGS

2.35

1.75

0.00

0.30

Fair

Clear

NONE

1990-11-01 10:30

MST

Yes

RAK/RAH

USGS

13.1

2.05

0.00

0.50

Fair

Clear

NONE

1990-09-17 11:50

MDT

Yes

RAK/GMC

USGS

20.9

2.18

0.01

0.50

Fair

Clear

NONE

1990-07-23 10:20

MDT

Yes

RAK/GMC

USGS

58.3

2.56

-0.01

0.50

Fair

Clear

NONE

1990-07-16 11:30

MDT

Yes

RAK

USGS

45.0

2.47

0.00

0.50

Fair

Clear

NONE

1990-06-26 10:05

MDT

Yes

RSW/RAK

USGS

210

3.35

-0.02

0.80

Fair

Clear

NONE

1990-06-18 10:20

MDT

Yes

RSW/RAK

USGS

215

3.41

-0.02

0.70

Fair

Clear

NONE

1990-03-20 09:45

MST

Yes

RSW/GMC

USGS

1.64

1.73

0.00

0.30

Unspecified

Clear

NONE

1990-01-18 10:00

MST

Yes

RSW/GMC

USGS

7.49

1.96

0.00

0.50

Unspecified

Clear

NONE

211

1990-01-10 10:10

MST

Yes

USGS

9.68

1.99

Unspecified

NONE

210

1989-12-12 13:20

MST

Yes

USGS

8.18

1.80

Unspecified

NONE

209

1989-11-30 16:03

MST

Yes

USGS

6.81

1.74

Unspecified

NONE

1989-11-21 12:30

MST

Yes

GMC

USGS

11.0

1.80

0.00

1.00

Unspecified

Clear

NONE

208

1989-11-16 12:08

MST

Yes

USGS

3.98

1.64

Unspecified

NONE

207

1989-11-09 17:03

MST

Yes

USGS

4.91

1.65

Unspecified

NONE

206

1989-11-02 13:47

MST

Yes

USGS

8.10

1.76

Unspecified

NONE

205

1989-10-26 15:50

MDT

Yes

USGS

4.07

1.65

Unspecified

NONE

1989-10-19 09:50

MDT

Yes

RSW/GMC

USGS

10.8

1.83

-0.01

0.70

Unspecified

Clear

NONE

204

1989-10-12 09:25

MDT

Yes

USGS

3.04

1.60

Unspecified

NONE

203

1989-10-05 13:55

MDT

Yes

USGS

4.07

1.64

Unspecified

NONE

1989-09-29 09:50

MDT

Yes

RSW/GMC

USGS

2.32

1.57

-0.01

0.40

Unspecified

Clear

NONE

202

1989-09-21 15:00

MDT

Yes

USGS

5.24

1.65

Unspecified

Clear

NONE

1989-09-21 10:00

MDT

Yes

RSW/GMC

USGS

5.20

1.70

-0.01

0.70

Unspecified

Clear

NONE

201

1989-09-14 15:00

MDT

Yes

USGS

17.2

1.86

Unspecified

NONE

1989-08-29 13:35

MDT

Yes

GMC

USGS

11.0

1.79

0.00

0.50

Unspecified

Clear

NONE