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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 15300730 ALAGNAK R 27 MI AB MTH NR MCCORMICK NR LEVELOCK AK
Lake And Peninsula Borough, Alaska
Hydrologic Unit Code 19030206
Latitude  59°06'52", Longitude 156°23'01" NAD27
Drainage area 1,148  square miles
Gage datum 80 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)
132001-06-04 14:53AKDTYesJHC/TGTUSGS3830 FairClearNONE1Imported Channel 1BOATunspeunkno38302079354.09UNSPUNSPUNSPunknUNSPUNSPUNSP
122001-02-28 14:45AKSTYesGLS/JHCUSGS1420 FairIceCoverNONE1Imported Channel 1ICEQSCMMunkno14201636832.08UNSPUNSPUNSPunknUNSPUNSPUNSP
112000-08-28 17:15AKDTYesJHC/SFBUSGS317012.50-0.012.00Good NONE1Imported Channel 1BOATunspeunkno31702059243.43UNSPUNSPUNSPunknUNSPUNSPUNSP
102000-08-08 18:50AKDTYesJHC/GLSUSGS444013.04 Fair NONE1Imported Channel 1BOATunspeunkno444020910304.30UNSPUNSPUNSPunknUNSPUNSPUNSP
92000-07-18 15:15AKDTYesJHC/SFBUSGS598013.72-0.012.00Good NONE1Imported Channel 1BOATunspeunkno598022012005.00UNSPUNSPUNSPunknUNSPUNSPUNSP
82000-06-26 16:10AKDTYesJHC/GLSUSGS606013.70 Fair NONE1Imported Channel 1BOATunspeunkno606021511905.07UNSPUNSPUNSPunknUNSPUNSPUNSP
72000-06-12 16:20AKDTYesJHC/SFBUSGS467013.09 Fair NONE1Imported Channel 1BOATunspeunkno467020810704.34UNSPUNSPUNSPunknUNSPUNSPUNSP
62000-06-01 18:54AKDTYesJHC/GLSUSGS2940 Fair NONE1Imported Channel 1BOATunspeunkno29402038873.32UNSPUNSPUNSPunknUNSPUNSPUNSP
51999-09-15 13:10AKDTYesJHC/GLSUSGS3410 Poor NONE1Imported Channel 1BOATunspeunkno34102169783.49UNSPUNSPUNSPunknUNSPUNSPUNSP
41999-08-25 16:24AKDTYesWCS/JMDUSGS3810 Unspecified NONE1Imported Channel 1BOATunspeunkno381021510103.77UNSPUNSPUNSPunknUNSPUNSPUNSP
31999-07-13 19:03AKDTYesJMD/BXHUSGS6380 Poor NONE1Imported Channel 1BOATunspeunkno638028612505.10UNSPUNSPUNSPunknUNSPUNSPUNSP
21999-06-22 -- ----YesJMD/BXHUSGS4260 Unspecified NONE1Channel 1MBOTQSCMMVPAA426028514103.02UNSPUNSPUNSPunknUNSPUNSPUNSP
11999-06-03 19:55AKDTYesGLS/JMDUSGS3990 Fair NONE1Imported Channel 1BOATunspeunkno399022010203.90UNSPUNSPUNSPunknUNSPUNSPUNSP