USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

USGS 11435100 PYRAMID C A TWIN BRIDGES CA

El Dorado County, California

Hydrologic Unit Code 18020129

Latitude 38°48'57", Longitude 120°06'58" NAD27

Drainage area 8.76 square miles

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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
1033	2024-09-24 10:11:02	PDT	Yes	EPARVIN	USGS	4.75	1.45	0.00	0.55	Fair	Clear	NONE
1032	2024-08-13 13:11:09	PDT	Yes	eparvin	USGS	40.9	2.51	0.00	0.75	Fair	Clear	NONE
1031	2024-04-30 17:28:07	PDT	Yes	EPARVIN	USGS	64.1	2.84	0.06	0.70	Fair	Clear	NONE
1030	2023-09-06 12:57:05	PDT	Yes	EPARVIN	USGS	55.7	2.72	0.00	0.76	Fair	Clear	NONE
1029	2023-07-25 12:53:08	PDT	Yes	EPARVIN	USGS	40.0	2.48	-0.01	0.44	Fair	Clear	NONE
1028	2023-06-01 12:41:07	PDT	Yes	EPARVIN	USGS	216	3.62	0.01	0.55	Fair	Clear	NONE
1027	2023-04-17 15:12:05	PDT	Yes	PHONEYWE	USGS	121	3.17	0.00	0.80	Poor	Clear	NONE
1026	2022-09-28 13:29:06	PDT	Yes	EPARVIN	USGS	13.1	1.92	0.00	0.75	Fair	Clear	NONE
1025	2022-04-06 16:59:02	PDT	Yes	EPARVIN	USGS	63.7	2.78	0.07	1.00	Poor	Clear	NONE
1024	2021-09-28 15:01:02	PDT	Yes	PHONEYWE	USGS	6.12	1.62	0.00	0.50	Fair	Clear	NONE
1023	2021-04-27 17:22:08	PDT	Yes	EPARVIN	USGS	22.4	2.16	0.02	0.77	Fair	Clear	NONE
1022	2020-09-28 13:21	PDT	Yes	EMP	USGS	1.98	1.26	0.00	0.30	Poor	DebrisModerate	NONE
1021	2020-09-28 12:37:08	PDT	Yes	EMP	USGS	2.42	1.31	0.00	0.66	Poor	DebrisModerate	NONE
1020	2020-06-09 13:01	PDT	Yes	EMP	USGS	23.8	2.20	0.00	0.55	Poor	Clear	NONE
1019	2019-09-24 15:31	PDT	Yes	EMP	USGS	7.85	1.71			Poor	Clear	NONE
1018	2019-09-24 14:38	PDT	Yes	EMP	USGS	8.46	1.71	0.00	0.55	Fair	Clear	NONE
1017	2019-07-18 15:27	PDT	Yes	EMP	USGS	76.0	2.94	-0.01	0.55	Fair	DebrisLight	NONE
1016	2018-09-18 15:31	PDT	Yes	EMP	USGS	1.29	1.18	0.00	0.60	Fair	DebrisModerate	NONE
1015	2018-05-31 14:35	PDT	Yes	EMP	USGS	65.7	2.85	0.00	0.80	Poor	Clear	NONE
1014	2017-09-12 14:06:01	PDT	Yes	PH	USGS	61.2	2.78	0.04	0.80	Fair	Clear	NONE
1013	2017-07-14 11:09:07	PDT	Yes	PH	USGS	109	3.17		0.85	Fair	Clear	NONE
1012	2016-09-30 10:37	PDT	Yes	PH	USGS	3.93	1.44	0.00	0.50	Poor	DebrisLight	NONE
1011	2016-06-23 15:29	PDT	Yes	PH	USGS	52.0	2.63	-0.01	0.60	Fair	Clear	NONE
1010	2015-09-23 15:09	PDT	Yes	PH/KH	USGS	4.08	1.40	0.00	0.50	Fair	Clear	NONE
1009	2015-04-28 17:13	PDT	Yes	PH	USGS	50.8	2.66		0.70	Fair	Clear	NONE
1008	2014-09-08 15:59	PDT	Yes	PH	USGS	9.09	1.71	0.00	0.50	Poor	Clear	NONE
1007	2014-09-08 15:23	PDT	Yes	PH	USGS	9.47	1.71	0.00	0.40	Poor	Clear	NONE
1006	2014-05-22 13:50	PDT	Yes	PH	USGS	47.7	2.59	0.00	0.40	Fair	Clear	NONE
397b	2014-03-18 12:38	PDT	Yes	EID	USGS	23.3	2.15			Poor		NONE
397	2014-03-18 11:48	PDT	Yes	EID	USGS	20.0	2.15			Poor		NONE
1005	2013-09-17 17:45	PDT	Yes	PH	USGS	0.79	0.98	0.00	0.30	Poor	DebrisLight	NONE
1004	2013-05-01 14:27	PDT	Yes	PH	USGS	65.2	2.76	0.00	0.50	Fair	Clear	NONE
1003	2012-10-04 13:04	PDT	Yes	PH	USGS	3.11	1.32	0.00	0.50	Fair	Clear	NONE
1002	2012-05-21 12:50	PDT	Yes	PH	USGS	69.2	2.84	0.02	1.00	Fair	Clear	NONE
1001	2011-09-22 16:07	PDT	Yes	PH	USGS	16.0	1.95	0.00	0.40	Poor	Clear	NONE
1000	2011-07-19 12:53	PDT	Yes	PH	USGS	158	3.40	0.00	0.50	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

1033

2024-09-24 10:11:02

PDT

Yes

EPARVIN

USGS

4.75

1.45

0.00

0.55

Fair

Clear

NONE

1032

2024-08-13 13:11:09

PDT

Yes

eparvin

USGS

40.9

2.51

0.00

0.75

Fair

Clear

NONE

1031

2024-04-30 17:28:07

PDT

Yes

EPARVIN

USGS

64.1

2.84

0.06

0.70

Fair

Clear

NONE

1030

2023-09-06 12:57:05

PDT

Yes

EPARVIN

USGS

55.7

2.72

0.00

0.76

Fair

Clear

NONE

1029

2023-07-25 12:53:08

PDT

Yes

EPARVIN

USGS

40.0

2.48

-0.01

0.44

Fair

Clear

NONE

1028

2023-06-01 12:41:07

PDT

Yes

EPARVIN

USGS

216

3.62

0.01

0.55

Fair

Clear

NONE

1027

2023-04-17 15:12:05

PDT

Yes

PHONEYWE

USGS

121

3.17

0.00

0.80

Poor

Clear

NONE

1026

2022-09-28 13:29:06

PDT

Yes

EPARVIN

USGS

13.1

1.92

0.00

0.75

Fair

Clear

NONE

1025

2022-04-06 16:59:02

PDT

Yes

EPARVIN

USGS

63.7

2.78

0.07

1.00

Poor

Clear

NONE

1024

2021-09-28 15:01:02

PDT

Yes

PHONEYWE

USGS

6.12

1.62

0.00

0.50

Fair

Clear

NONE

1023

2021-04-27 17:22:08

PDT

Yes

EPARVIN

USGS

22.4

2.16

0.02

0.77

Fair

Clear

NONE

1022

2020-09-28 13:21

PDT

Yes

EMP

USGS

1.98

1.26

0.00

0.30

Poor

DebrisModerate

NONE

1021

2020-09-28 12:37:08

PDT

Yes

EMP

USGS

2.42

1.31

0.00

0.66

Poor

DebrisModerate

NONE

1020

2020-06-09 13:01

PDT

Yes

EMP

USGS

23.8

2.20

0.00

0.55

Poor

Clear

NONE

1019

2019-09-24 15:31

PDT

Yes

EMP

USGS

7.85

1.71

Poor

Clear

NONE

1018

2019-09-24 14:38

PDT

Yes

EMP

USGS

8.46

1.71

0.00

0.55

Fair

Clear

NONE

1017

2019-07-18 15:27

PDT

Yes

EMP

USGS

76.0

2.94

-0.01

0.55

Fair

DebrisLight

NONE

1016

2018-09-18 15:31

PDT

Yes

EMP

USGS

1.29

1.18

0.00

0.60

Fair

DebrisModerate

NONE

1015

2018-05-31 14:35

PDT

Yes

EMP

USGS

65.7

2.85

0.00

0.80

Poor

Clear

NONE

1014

2017-09-12 14:06:01

PDT

Yes

USGS

61.2

2.78

0.04

0.80

Fair

Clear

NONE

1013

2017-07-14 11:09:07

PDT

Yes

USGS

109

3.17

0.85

Fair

Clear

NONE

1012

2016-09-30 10:37

PDT

Yes

USGS

3.93

1.44

0.00

0.50

Poor

DebrisLight

NONE

1011

2016-06-23 15:29

PDT

Yes

USGS

52.0

2.63

-0.01

0.60

Fair

Clear

NONE

1010

2015-09-23 15:09

PDT

Yes

PH/KH

USGS

4.08

1.40

0.00

0.50

Fair

Clear

NONE

1009

2015-04-28 17:13

PDT

Yes

USGS

50.8

2.66

0.70

Fair

Clear

NONE

1008

2014-09-08 15:59

PDT

Yes

USGS

9.09

1.71

0.00

0.50

Poor

Clear

NONE

1007

2014-09-08 15:23

PDT

Yes

USGS

9.47

1.71

0.00

0.40

Poor

Clear

NONE

1006

2014-05-22 13:50

PDT

Yes

USGS

47.7

2.59

0.00

0.40

Fair

Clear

NONE

397b

2014-03-18 12:38

PDT

Yes

EID

USGS

23.3

2.15

Poor

NONE

397

2014-03-18 11:48

PDT

Yes

EID

USGS

20.0

2.15

Poor

NONE

1005

2013-09-17 17:45

PDT

Yes

USGS

0.79

0.98

0.00

0.30

Poor

DebrisLight

NONE

1004

2013-05-01 14:27

PDT

Yes

USGS

65.2

2.76

0.00

0.50

Fair

Clear

NONE

1003

2012-10-04 13:04

PDT

Yes

USGS

3.11

1.32

0.00

0.50

Fair

Clear

NONE

1002

2012-05-21 12:50

PDT

Yes

USGS

69.2

2.84

0.02

1.00

Fair

Clear

NONE

1001

2011-09-22 16:07

PDT

Yes

USGS

16.0

1.95

0.00

0.40

Poor

Clear

NONE

1000

2011-07-19 12:53

PDT

Yes

USGS

158

3.40

0.00

0.50

Fair

Clear

NONE