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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 15297930 CHOKOTONK R AT MOUTH NR PORT ALSWORTH AK
Lake And Peninsula Borough, Alaska
Hydrologic Unit Code 19030205
Latitude  60°26'16", Longitude 153°36'22" NAD27
Drainage area 168  square miles
Gage datum 250 feet above NGVD29
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
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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 		 Channel
Number		 Channel
Name		 Meas.
type 		 Stream
flow
method 		 Velocity
method 		 Channel
flow
(ft3/s)		 Channel
width
(ft)		 Channel
area
(ft2)		 Channel
vel.
(ft/s)		 Channel
stability 		 Channel
material 		 Channel
evenness 		 Long.
vel.
desc. 		 Horz.
vel.
desc. 		 Vert.
vel.
desc. 		 Channel
loc.
code 		 Channel
loc.
dist.(ft)
72001-08-22 10:50AKDTYesTPBUSGS273 1.00Fair NONE1Imported Channel 1WADEQSCMMVPAA2731161292.10UNSPUNSPUNSPunknUNSPUNSPUNSP
62000-07-18 10:43:30AKDTYesJR/TPBUSGS820 0.60Poor NONE1Imported Channel 1MBOTQADCPVADCP820 UNSPUNSPUNSPunknUNSPUNSPUNSP
52000-06-20 12:00AKDTYesJR/TPBUSGS944 1.00Fair NONE1Imported Channel 1WADEQSCMMVPAA9444404542.10UNSPUNSPUNSPunknUNSPUNSPUNSP
41999-10-14 12:45AKDTYesLA/TPBUSGS258 0.50Fair NONE1Imported Channel 1WADEQSCMMVPAA25880.095.42.70UNSPUNSPUNSPunknUNSPUNSPUNSP
31999-08-17 14:15AKDTYesSG/TPBUSGS1950 0.50Poor NONE1Imported Channel 1MBOTQADCPVADCP1950 UNSPUNSPUNSPunknUNSPUNSPUNSP
21999-07-22 15:42:30AKDTYesRH/TPBUSGS1410 0.60Poor NONE1Imported Channel 1MBOTQADCPVADCP1410 UNSPUNSPUNSPunknUNSPUNSPUNSP
11999-06-16 13:15AKDTYesRH/TPBUSGS2190 0.50Poor NONE1Imported Channel 1MBOTQADCPVADCP2190 UNSPUNSPUNSPunknUNSPUNSPUNSP