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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 15209100 MAY C NR MAY CREEK AK
Copper River Census Area County, Alaska
Hydrologic Unit Code 190201032207
Latitude  61°20'42", Longitude 142°41'49" NAD27
Drainage area 11.3  square miles
Gage datum 1,577.0 feet above NAVD88
Output formats
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Tab-separated data with channel 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)
281983-10-04 14:20AKDTYesfda/tpbUSGS9.034.50 FairClearNONE1Imported Channel 1WADEunspeunkno9.036.105.621.61UNSPUNSPUNSPunknUNSPUNSPUNSP
271983-08-16 14:37AKDTYesfda/rlsUSGS21.34.93 FairClearNONE1Imported Channel 1WADEunspeunkno21.39.309.172.32UNSPUNSPUNSPunknUNSPUNSPUNSP
261983-05-24 14:35AKDTYesgls/fdaUSGS4.664.27 FairClearNONE1Imported Channel 1WADEunspeunkno4.667.005.750.81UNSPUNSPUNSPunknUNSPUNSPUNSP
251982-09-21 14:30AKDTYesglsUSGS1.614.30 GoodDebrisLightNONE1Imported Channel 1WADEunspeunkno1.615.502.540.63UNSPUNSPUNSPunknUNSPUNSPUNSP
241982-07-29 10:10AKDTYesgls/glpUSGS1.934.20 FairClearNONE1Imported Channel 1WADEunspeunkno1.935.903.730.52UNSPUNSPUNSPunknUNSPUNSPUNSP
231982-05-27 10:15AKDTYesbbb/glsUSGS11.04.62 FairClearNONE1Imported Channel 1WADEunspeunkno11.06.305.741.92UNSPUNSPUNSPunknUNSPUNSPUNSP
211981-09-08 16:10AKDTYestpb/glsUSGS8.174.580.000.30Good NONE1Imported Channel 1WADEunspeunkno8.176.004.601.78UNSPUNSPUNSPunknUNSPUNSPUNSP
201981-05-21 09:55AKDTYesgls/lawUSGS9.734.600.000.40Fair NONE1Imported Channel 1WADEunspeunkno9.736.306.041.61UNSPUNSPUNSPunknUNSPUNSPUNSP
191980-09-11 09:55AKDTYesgls/rlsUSGS7.864.610.000.30Good NONE1Imported Channel 1WADEunspeunkno7.866.305.381.46UNSPUNSPUNSPunknUNSPUNSPUNSP
181980-06-27 11:05AKDTYescss/glsUSGS3.684.380.000.30FairClearNONE1Imported Channel 1WADEunspeunkno3.687.705.390.68UNSPUNSPUNSPunknUNSPUNSPUNSP
171979-09-28 12:00AKDTYesgls/lwwUSGS2.504.260.000.40GoodDebrisLightNONE1Imported Channel 1WADEunspeunkno2.507.703.570.70UNSPUNSPUNSPunknUNSPUNSPUNSP
161979-06-27 12:10AKDTYesccs/glsUSGS1.144.140.000.80GoodDebrisLightNONE1Imported Channel 1WADEunspeunkno1.146.103.020.38UNSPUNSPUNSPunknUNSPUNSPUNSP
151978-09-01 11:55AKDTYeskspUSGS0.534.050.000.50FairClearNONE1Imported Channel 1WADEunspeunkno0.536.701.670.32UNSPUNSPUNSPunknUNSPUNSPUNSP
141978-07-06 15:30AKDTYesksp/gebUSGS1.384.16 FairClearNONE1Imported Channel 1WADEunspeunkno1.388.806.240.22UNSPUNSPUNSPunknUNSPUNSPUNSP
131977-07-07 12:30AKDTYeslww/kspUSGS12.64.72 GoodClearNONE1Imported Channel 1WADEunspeunkno12.67.107.501.68UNSPUNSPUNSPunknUNSPUNSPUNSP
121977-05-24 15:25AKDTYeslww/kspUSGS6.564.26 FairClearNONE1Imported Channel 1WADEunspeunkno6.566.805.551.18UNSPUNSPUNSPunknUNSPUNSPUNSP
111976-07-13 15:45AKDTYesdrs/lwwUSGS1.054.05 PoorDebrisLightNONE1Imported Channel 1WADEunspeunkno1.056.402.010.52UNSPUNSPUNSPunknUNSPUNSPUNSP
101976-05-29 -- ----Yeslsl/lwwUSGS15.24.70 Fair NONE1Imported Channel 1WADEunspeunkno15.29.708.671.75UNSPUNSPUNSPunknUNSPUNSPUNSP
71975-10-02 12:00AKDTYesa k/shjUSGS17.44.930.000.50GoodDebrisLightNONE1Imported Channel 1WADEunspeunkno17.410.09.651.80UNSPUNSPUNSPunknUNSPUNSPUNSP
61975-06-25 16:48AKDTYesdrs/c zUSGS19.44.930.000.30Good NONE1Imported Channel 1WADEunspeunkno19.410.79.811.98UNSPUNSPUNSPunknUNSPUNSPUNSP
51975-05-20 19:15AKDTYesj r/a kUSGS23.65.09 GoodClearNONE1Imported Channel 1WADEunspeunkno23.610.411.62.03UNSPUNSPUNSPunknUNSPUNSPUNSP
41974-06-19 21:05AKDTYesa kUSGS1.044.05 GoodClearNONE1Imported Channel 1WADEunspeunkno1.047.002.050.51UNSPUNSPUNSPunknUNSPUNSPUNSP
31973-10-05 14:00AKDTYesa k/shjUSGS1.004.150.00 FairDebrisLightNONE1Imported Channel 1WADEunspeunkno1.008.002.610.38UNSPUNSPUNSPunknUNSPUNSPUNSP
21973-07-13 -- ----Yeslsl/rmlUSGS5.8210.22 Unspecified NONE1Imported Channel 1UNSPother 5.82 UNSPUNSPUNSPunknUNSPUNSPUNSP
11973-06-14 18:45AKDTYesSHJ/JDMUSGS8.6010.230.000.50Fair NONE1Imported Channel 1WADEunspeunkno8.6017.58.321.03UNSPUNSPUNSPunknUNSPUNSPUNSP