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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
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 
72001-08-22 10:50AKDTYesTPBUSGS273 1.00Fair NONE
62000-07-18 10:43:30AKDTYesJR/TPBUSGS820 0.60Poor NONE
52000-06-20 12:00AKDTYesJR/TPBUSGS944 1.00Fair NONE
41999-10-14 12:45AKDTYesLA/TPBUSGS258 0.50Fair NONE
31999-08-17 14:15AKDTYesSG/TPBUSGS1950 0.50Poor NONE
21999-07-22 15:42:30AKDTYesRH/TPBUSGS1410 0.60Poor NONE
11999-06-16 13:15AKDTYesRH/TPBUSGS2190 0.50Poor NONE