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...

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

Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

USGS 15199300 TULSONA C NR GAKONA AK

Copper River Census Area County, Alaska

Hydrologic Unit Code 190201011403

Latitude 62°25'52", Longitude 144°58'03" NAD83

Drainage area 93.8 square miles

Gage datum 1,737.0 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
26	2025-09-16 16:03:36	AKDT	Yes	MER/DSI	USGS	51.2	10.02			Poor	DebrisLight	NONE
25	2024-05-15 16:41:27	AKDT	Yes	MER/KTW	USGS	182	11.41			Poor	Clear	NONE
24	2023-05-24 12:57:29	AKDT	Yes	MER/DSI	USGS	459	13.96	0.00	0.25	Fair	Clear	NONE
23	2022-06-02 11:05:38	AKDT	Yes	BAD	USGS	235	12.05	-0.01	0.25	Good	Clear	NONE
22	2022-05-18 17:58:23	AKDT	Yes	CWS	USGS	758	16.44			Fair	Clear	NONE
21	2021-06-30 17:31:46	AKDT	Yes	ktw/trd	USGS	101	10.49	0.00	0.25	Fair	Clear	NONE
20	2021-05-10 16:46:03	AKDT	Yes	CWS/JCC	usgs	139	14.96			Fair	IceAnchor	NONE
19	2020-09-08 16:51:16	AKDT	Yes	ktw/cws	USGS	67.1	9.92	0.00	0.25	Fair	Clear	NONE
18	2019-08-14 10:54:32	AKDT	Yes	ktw/trd	USGS	42.6	11.23	0.01	0.25	Poor	Clear	NONE
17	2019-05-30 18:30:52	AKDT	Yes	BAD/JCC	USGS	58.6	9.69	0.00	0.50	Fair	Clear	NONE
16	2018-06-13 17:44	AKDT	Yes	RPM	USGS	341	13.47	-0.04	1.00	Fair	Clear	NONE
15	2018-05-24 13:10	AKDT	Yes	BAD/CWS	USGS	198	10.84	0.00	0.25	Good	Clear	NONE
14	2018-05-14 17:37:30	AKDT	Yes	RPM/MPC	USGS	472	14.14	-0.03	0.52	Fair	Clear	NONE
13	2017-09-12 15:02:03	AKDT	Yes	RM/MS	USGS	44.7	9.34	0.00	0.70	Fair	Clear	NONE
12	2017-06-19 17:17:53	AKDT	Yes	rpm/mm	USGS	34.4	9.16	0.00	0.60	Fair	Clear	NONE
11	2016-07-12 15:15:51	AKDT	Yes	BAD/jso	USGS	30.0	8.96	0.00	0.30	Poor	Clear	NONE
10	2014-09-24 12:30:30	AKDT	Yes	RPM/GS	USGS	102	9.57	0.00	1.00	Fair	Clear	NONE
9	2014-09-23 19:15	AKDT	Yes	RPM	USGS	110	9.63	0.00	0.50	Poor	Clear	NONE
8	2014-07-15 17:07:30	AKDT	Yes	RPM/FWS	USGS	129	9.96	0.00	0.80	Fair	Clear	NONE
7	2014-05-22 22:15	AKDT	Yes	RPM/MM	USGS	75.1	9.28	-0.01	1.40	Fair	Clear	NONE
6	2014-05-09 17:20:03	AKDT	Yes	RPM/MM	USGS	255	11.47	-0.02	0.70	Good	Clear	NONE
5	2014-04-30 13:37:53	AKDT	Yes	RPM/KMJ	USGS	256	13.60	-0.11	0.60	Poor	IceAnchor	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

2025-09-16 16:03:36

AKDT

Yes

MER/DSI

USGS

51.2

10.02

Poor

DebrisLight

NONE

2024-05-15 16:41:27

AKDT

Yes

MER/KTW

USGS

182

11.41

Poor

Clear

NONE

2023-05-24 12:57:29

AKDT

Yes

MER/DSI

USGS

459

13.96

0.00

0.25

Fair

Clear

NONE

2022-06-02 11:05:38

AKDT

Yes

BAD

USGS

235

12.05

-0.01

0.25

Good

Clear

NONE

2022-05-18 17:58:23

AKDT

Yes

CWS

USGS

758

16.44

Fair

Clear

NONE

2021-06-30 17:31:46

AKDT

Yes

ktw/trd

USGS

101

10.49

0.00

0.25

Fair

Clear

NONE

2021-05-10 16:46:03

AKDT

Yes

CWS/JCC

usgs

139

14.96

Fair

IceAnchor

NONE

2020-09-08 16:51:16

AKDT

Yes

ktw/cws

USGS

67.1

9.92

0.00

0.25

Fair

Clear

NONE

2019-08-14 10:54:32

AKDT

Yes

ktw/trd

USGS

42.6

11.23

0.01

0.25

Poor

Clear

NONE

2019-05-30 18:30:52

AKDT

Yes

BAD/JCC

USGS

58.6

9.69

0.00

0.50

Fair

Clear

NONE

2018-06-13 17:44

AKDT

Yes

RPM

USGS

341

13.47

-0.04

1.00

Fair

Clear

NONE

2018-05-24 13:10

AKDT

Yes

BAD/CWS

USGS

198

10.84

0.00

0.25

Good

Clear

NONE

2018-05-14 17:37:30

AKDT

Yes

RPM/MPC

USGS

472

14.14

-0.03

0.52

Fair

Clear

NONE

2017-09-12 15:02:03

AKDT

Yes

RM/MS

USGS

44.7

9.34

0.00

0.70

Fair

Clear

NONE

2017-06-19 17:17:53

AKDT

Yes

rpm/mm

USGS

34.4

9.16

0.00

0.60

Fair

Clear

NONE

2016-07-12 15:15:51

AKDT

Yes

BAD/jso

USGS

30.0

8.96

0.00

0.30

Poor

Clear

NONE

2014-09-24 12:30:30

AKDT

Yes

RPM/GS

USGS

102

9.57

0.00

1.00

Fair

Clear

NONE

2014-09-23 19:15

AKDT

Yes

RPM

USGS

110

9.63

0.00

0.50

Poor

Clear

NONE

2014-07-15 17:07:30

AKDT

Yes

RPM/FWS

USGS

129

9.96

0.00

0.80

Fair

Clear

NONE

2014-05-22 22:15

AKDT

Yes

RPM/MM

USGS

75.1

9.28

-0.01

1.40

Fair

Clear

NONE

2014-05-09 17:20:03

AKDT

Yes

RPM/MM

USGS

255

11.47

-0.02

0.70

Good

Clear

NONE

2014-04-30 13:37:53

AKDT

Yes

RPM/KMJ

USGS

256

13.60

-0.11

0.60

Poor

IceAnchor

NONE