USGS Surface Water for USA: Streamflow Measurements

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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 01029100 E. Br. Penobscot River below Grand Lake Matagamon

Penobscot County, Maine

Hydrologic Unit Code 01020002

Latitude 46°08'03.70", Longitude 68°47'38.06" NAD83

Drainage area 493 square miles

Gage datum 626 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
15	2025-06-23 10:31:52	EDT	Yes	JRP/JMM	USGS	655	3.34	0.01	0.20	Fair	Clear	NONE
14	2025-05-02 09:53:47	EDT	Yes	JRP	USGS	3760	6.26	0.01	0.30	Fair	Clear	NONE
13	2025-03-24 10:12:07	EDT	Yes	JRP/JMM	USGS	2600	5.40	0.01	0.20	Fair	Clear	NONE
12	2025-03-10 08:57:32	EDT	Yes	JRP/JRC	USGS	294	2.70	0.00	0.25	Fair	Clear	NONE
11	2025-01-27 08:54:06	EST	Yes	JRP/JMM	USGS	401	2.90	0.00	0.30	Fair	IceShore	NONE
10	2024-11-12 09:10:03	EST	Yes	JRP/JMK	USGS	197	2.50	0.01	0.70	Fair	Clear	NONE
9	2024-10-03 12:58:55	EDT	Yes	JRP/JMK	USGS	215	2.53	0.01	1.00	Fair	Clear	NONE
8	2024-10-03 12:48:37	EDT	Yes	JRP/JMK	USGS	215	2.53	0.00	1.00	Fair	Clear	NONE
7	2024-10-02 17:30:54	EDT	Yes	JRP/JMK/JMM/	USGS	1900	4.79	0.00	0.20	Fair	Clear	NONE
6	2024-06-24 08:49:19	EDT	Yes	JRP	USGS	370	2.85	0.00	0.20	Fair	Clear	NONE
5	2024-05-15 11:27	EDT	Yes	ARC	USGS	1290	4.14	0.00	0.25	Fair	Clear	NONE
4	2024-05-15 09:04:10	EDT	Yes	ARC	USGS	603	3.22	0.00	0.30	Fair	Clear	NONE
2	2024-05-13 16:05:07	EDT	Yes	JRP/ARC/HSG/	USGS	378	2.85	0.01	1.10	Fair	Clear	NONE
3	2024-05-13 15:51:57	EDT	Yes	JRP/ARC/HSG/	USGS	369	2.85	0.00	0.25	Fair	Clear	NONE
1	2024-05-13 15:49:58	EDT	Yes	JRP/ARC/HSG/	USGS	358	2.85	0.00	1.00	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

2025-06-23 10:31:52

EDT

Yes

JRP/JMM

USGS

655

3.34

0.01

0.20

Fair

Clear

NONE

2025-05-02 09:53:47

EDT

Yes

JRP

USGS

3760

6.26

0.01

0.30

Fair

Clear

NONE

2025-03-24 10:12:07

EDT

Yes

JRP/JMM

USGS

2600

5.40

0.01

0.20

Fair

Clear

NONE

2025-03-10 08:57:32

EDT

Yes

JRP/JRC

USGS

294

2.70

0.00

0.25

Fair

Clear

NONE

2025-01-27 08:54:06

EST

Yes

JRP/JMM

USGS

401

2.90

0.00

0.30

Fair

IceShore

NONE

2024-11-12 09:10:03

EST

Yes

JRP/JMK

USGS

197

2.50

0.01

0.70

Fair

Clear

NONE

2024-10-03 12:58:55

EDT

Yes

JRP/JMK

USGS

215

2.53

0.01

1.00

Fair

Clear

NONE

2024-10-03 12:48:37

EDT

Yes

JRP/JMK

USGS

215

2.53

0.00

1.00

Fair

Clear

NONE

2024-10-02 17:30:54

EDT

Yes

JRP/JMK/JMM/

USGS

1900

4.79

0.00

0.20

Fair

Clear

NONE

2024-06-24 08:49:19

EDT

Yes

JRP

USGS

370

2.85

0.00

0.20

Fair

Clear

NONE

2024-05-15 11:27

EDT

Yes

ARC

USGS

1290

4.14

0.00

0.25

Fair

Clear

NONE

2024-05-15 09:04:10

EDT

Yes

ARC

USGS

603

3.22

0.00

0.30

Fair

Clear

NONE

2024-05-13 16:05:07

EDT

Yes

JRP/ARC/HSG/

USGS

378

2.85

0.01

1.10

Fair

Clear

NONE

2024-05-13 15:51:57

EDT

Yes

JRP/ARC/HSG/

USGS

369

2.85

0.00

0.25

Fair

Clear

NONE

2024-05-13 15:49:58

EDT

Yes

JRP/ARC/HSG/

USGS

358

2.85

0.00

1.00

Fair

Clear

NONE

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U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Streamflow Measurements
URL: https://nwis.waterdata.usgs.gov/nwis/measurements?

Page Contact Information: Maine Water Data Support Team
Page Last Modified: 2025-07-17 17:09:04 EDT
0.31 0.31 nadww02