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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 1556488102 SF KOYUKUK R TR MI 153 DALTON HWY NR COLDFOOT AK
Yukon-Koyukuk Census Area County, Alaska
Hydrologic Unit Code 19040602
Latitude  66°58'57", Longitude 150°19'22" NAD83
Gage datum 1,250 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)
202025-08-27 17:30AKDTYesemb/mfs/jabUSGS62.166.180.000.50FairClearNONE1SF KoyukukWADEQSCMMVPAA62.18.0013.04.77SOFTCBLSUNEVPULSEVENSTNDDNST125.00
192024-06-04 12:24:30AKDTYesemb/jabUSGS14.465.46 FairClearNONE1sf KoyukukWADEQSCMMVPAA14.47.606.392.26FIRMCBLSEVENPULSEVENSTNDDNST200.00
182023-05-24 13:55AKDTYesjab/mecUSGS19.065.52-0.020.30FairClearNONE1sforkWADEQSCMMVPAA19.08.708.232.30FIRMCBLSUNEVPULSUNEVUNKNDNST3.00
172022-05-24 19:23:30AKDTYesemr/jabUSGS9.0165.20 FairClearNONE1SF koyukukWADEQSCMMVPAA9.017.406.051.49FIRMCBLSUNEVPULSUNEVSTNDDNST150.00
162021-05-31 12:05:30AKDTYesrkp/jabUSGS2.6164.780.000.50FairClearNONE1sf koyWADEQSCMMVADV2.617.803.460.76FIRMCBLSUNEVPULSUNEVNSTDDNST85.00
152020-09-21 16:10AKDTYesmjk/jabUSGS24.065.54 FairClearNONE1sfWADEQSCMMVPAA24.07.6010.92.20FIRMCBLSUNEVPULSUNEVSTNDDNST100.00
142020-05-26 18:42:30AKDTYeshrb/jabUSGS43.965.820.010.50PoorClearNONE1south forkWADEQSCMMVPAA43.97.5012.43.53FIRMCBLSUNEVPULSUNEVNSTDDNST120.00
132019-05-21 19:02AKDTYesmk/rk/jbUSGS34.665.76 FairClearNONE1sfWADEQSCMMVPAA34.67.6010.33.36FIRMCBLSUNEVPULSUNEVUNSPDNST300.00
122018-05-30 17:15AKDTYesjab/mjkUSGS40.765.83-0.020.50FairClearNONE1SF koyukuk R TrWADEQSCMMVPAA40.77.9011.93.43FIRMCBLSUNEVPULSUNEVUNKNDNST200.00
112018-05-24 11:32AKDTYesmk/kd/rpUSGS11.565.21 0.80FairIceShoreNONE1SF koy trib AAWADEQSCMMVPAA11.58.006.871.67FIRMCBLSUNEVPULSUNEVUNKNDNST30.00
102018-05-24 11:22:14AKDTYesmk/kd/rpUSGS12.465.210.000.50FairIceShoreNONE1SF koy trib ADVWADEQSCMMVADV12.48.506.581.88FIRMCBLSUNEVPULSUNEVNSTDDNST150.00
92018-05-23 19:19:27AKDTYesmk/kd/rpUSGS18.865.400.000.60FairClearNONE1SF KoyoWADEQSCMMVADV18.88.607.442.52FIRMCBLSUNEVPULSUNEVNSTDDNST150.00
82017-05-29 15:25AKDTYesmjk/jabUSGS14.965.28-0.050.80FairClearNONE1sfWADEQSCMMVPYG14.97.808.071.84FIRMCBLSEVENunknUNEVUNKNDNST200.00
72016-09-29 15:43AKDTYesjab/mfsUSGS15.665.300.000.50FairClearNONE1sf koyukWADEQSCMMVADV15.67.507.562.06FIRMCBLSUNEVunknUNEVNSTDDNST150.00
62016-07-11 17:32:22AKDTYescas/dwfUSGS4.2364.920.010.50FairClearNONE1SF KOYWADEQSCMMVPYG4.237.704.590.92FIRMCBLSUNEVunknUNEVUNKNATGA
42016-06-01 12:07:30AKDTYesjab/mjkUSGS4.8764.930.000.60FairClearNONE1sf koyWADEQSCMMVPYG4.877.705.160.94FIRMCBLSUNEVunknUNEVNSTDDNST100.00
52016-06-01 12:05AKDTYesMJK/JABUSGS4.2564.93 PoorClearNONE1Imported Channel 1WADEQSCMMVADV4.258.604.300.99UNSPUNSPUNSPunknUNSPUNSPUNSP
32016-05-19 15:33:30AKDTYesjab/mecUSGS0.6764.520.000.30PoorClearNONE1SOUTH FORKWADEQSCMMVPYG0.675.902.530.26FIRMCBLSUNEVunknUNEVNSTDDNST100.00
22016-05-11 15:48:30AKDTNo
12015-09-08 14:13:30AKDTYeshrb/jabUSGS10.365.130.000.50FairClearNONE1mainWADEQSCMMVPYG10.37.806.421.60UNSPCBLSUNEVunknUNEVNSTDDNST100.00