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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 15300700 ALAGNAK R BL NONVIANUK R NR IGIUGIG AK
Lake And Peninsula Borough, Alaska
Hydrologic Unit Code 19030206
Latitude  59°01'16", Longitude 155°50'51" NAD27
Drainage area 922  square miles
Gage datum 460 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 
122001-06-06 11:44AKDTYesJHCUSGS4420 UnspecifiedClearNONE
112001-02-27 13:43AKSTYesGLS/JHCUSGS1420 FairIceShoreNONE
102000-08-30 13:00AKDTYesJHC/SFBUSGS29205.230.012.00Good NONE
92000-08-09 12:30AKDTYesJHC/GLSUSGS39905.96-0.033.00Fair NONE
82000-07-20 11:00AKDTYesJHC/SFBUSGS60106.600.001.00Fair NONE
72000-06-14 11:34AKDTYesJHC/SFBUSGS53806.220.002.00Fair NONE
62000-06-02 11:02AKDTYesJHC/GLSUSGS31405.17 Fair NONE
51999-09-16 -- ----YesJHC/GLSUSGS3420 Poor NONE
41999-08-26 12:00AKDTYesWCS/JMDUSGS3780 Fair NONE
31999-07-14 12:30AKDTYesJMD/BXHUSGS6690 Poor NONE
21999-06-23 12:30AKDTYesJMD/BXHUSGS10400 Unspecified NONE
11999-06-04 11:20AKDTYesGLS/JMDUSGS3520 Fair NONE