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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 15078000 GRACE C NR KETCHIKAN AK
Ketchikan Gateway Borough, Alaska
Hydrologic Unit Code 19010102
Latitude  55°39'28", Longitude 130°58'14" NAD27
Drainage area 31.3  square miles
Gage datum 15 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)
171953-08-20 09:10AKSTYesrimUSGS158 GoodClearNONE1Imported Channel 1WADEunspeunkno15888.076.820.5UNSPUNSPUNSPunknUNSPUNSPUNSP
161952-02-08 -- ----YesalkUSGS3483.99 GoodClearNONE1Imported Channel 1WADEunspeunkno34885.01272.74UNSPUNSPUNSPunknUNSPUNSPUNSP
5A1951-09-15 10:45AKSTYesrjgUSGS216 GoodClearNONE1Imported Channel 1CWAYunspeunkno21686.082.82.61UNSPUNSPUNSPunknUNSPUNSPUNSP
4A1949-06-27 10:30AKSTYesrimUSGS8234.96 GoodClearNONE1Imported Channel 1CWAYunspeunkno82394.02183.78UNSPUNSPUNSPunknUNSPUNSPUNSP
3A1947-08-16 09:10AKSTYesrimUSGS1221.08 GoodClearNONE1Imported Channel 1WADEunspeunkno12280.01061.15UNSPUNSPUNSPunknUNSPUNSPUNSP
2A1947-07-01 04:15AKSTYesrimUSGS5602.20 FairClearNONE1Imported Channel 1WADEunspeunkno56094.01932.90UNSPUNSPUNSPunknUNSPUNSPUNSP
1A1946-09-04 01:10AKSTYesdaUSGS77.60.84 GoodClearNONE1Imported Channel 1WADEunspeunkno77.649.052.01.49UNSPUNSPUNSPunknUNSPUNSPUNSP
30A1937-10-13 02:35AKSTYesbehUSGS2181.32 GoodClearNONE1Imported Channel 1WADEunspeunkno21883.088.42.46UNSPUNSPUNSPunknUNSPUNSPUNSP
29A1937-07-17 -- ----YescrsUSGS1681.08 GoodClearNONE1Imported Channel 1WADEunspeunkno16879.075.02.22UNSPUNSPUNSPunknUNSPUNSPUNSP
28A1937-07-15 09:00AKSTYescrsUSGS1941.23 GoodClearNONE1Imported Channel 1WADEunspeunkno19480.081.02.40UNSPUNSPUNSPunknUNSPUNSPUNSP
301934-09-23 09:30AKSTYeschiUSGS2321.15 GoodClearNONE1Imported Channel 1CWAYunspeunkno23283.087.12.67UNSPUNSPUNSPunknUNSPUNSPUNSP
291934-08-19 -- ----YeschiUSGS2931.47 GoodClearNONE1Imported Channel 1CWAYunspeunkno29380.01062.70UNSPUNSPUNSPunknUNSPUNSPUNSP
281934-07-11 -- ----YeschiUSGS9352.45 GoodClearNONE1Imported Channel 1CWAYunspeunkno93598.01705.50UNSPUNSPUNSPunknUNSPUNSPUNSP
17A1930-06-23 09:25AKSTYesusgUSGS4461.80 GoodClearNONE1Imported Channel 1WADEunspeunkno44617.01323.30UNSPUNSPUNSPunknUNSPUNSPUNSP
16A1930-05-29 07:50AKSTYesusgUSGS8462.50 GoodClearNONE1Imported Channel 1WADEunspeunkno84687.02064.10UNSPUNSPUNSPunknUNSPUNSPUNSP
15A1930-05-02 -- ----YeswdaUSGS2361.69 UnspecifiedClearNONE1Imported Channel 1WADEunspeunkno23690.01243.30UNSPUNSPUNSPunknUNSPUNSPUNSP
151930-05-02 -- ----YeswdaUSGS3891.68 GoodClearNONE1Imported Channel 1WADEunspeunkno38985.01283.00UNSPUNSPUNSPunknUNSPUNSPUNSP
141930-02-05 -- ----YesusgUSGS2881.37 GoodClearNONE1Imported Channel 1WADEunspeunkno28885.01122.50UNSPUNSPUNSPunknUNSPUNSPUNSP
131929-08-19 02:50AKSTYesusgUSGS9472.50 GoodClearNONE1Imported Channel 1WADEunspeunkno94788.02324.00UNSPUNSPUNSPunknUNSPUNSPUNSP
121929-08-10 -- ----YesusgUSGS67.7 GoodClearNONE1Imported Channel 1WADEunspeunkno67.738.061.21.10UNSPUNSPUNSPunknUNSPUNSPUNSP
111929-04-02 08:30AKSTYesusgUSGS102 GoodClearNONE1Imported Channel 1WADEunspeunkno10270.048.42.10UNSPUNSPUNSPunknUNSPUNSPUNSP
81928-05-15 -- ----YesusgUSGS631 GoodClearNONE1Imported Channel 1WADEunspeunkno63180.01693.70UNSPUNSPUNSPunknUNSPUNSPUNSP
71928-03-29 03:00AKSTYesusgUSGS351 GoodClearNONE1Imported Channel 1WADEunspeunkno35183.01182.90UNSPUNSPUNSPunknUNSPUNSPUNSP
61928-02-11 -- ----YesdawUSGS7232.36 GoodClearNONE1Imported Channel 1CWAYunspeunkno72386.01833.95UNSPUNSPUNSPunknUNSPUNSPUNSP
51928-01-25 -- ----YeswenUSGS1480.91 GoodClearNONE1Imported Channel 1WADEunspeunkno14870.067.02.21UNSPUNSPUNSPunknUNSPUNSPUNSP
41927-11-18 12:40AKSTYesrayUSGS470 GoodClearNONE1Imported Channel 1WADEunspeunkno47051.094.01.20UNSPUNSPUNSPunknUNSPUNSPUNSP
31927-10-22 10:30AKSTYesusgUSGS1750 GoodClearNONE1Imported Channel 1CWAYunspeunkno175093.03241.20UNSPUNSPUNSPunknUNSPUNSPUNSP
21927-09-29 -- ----YeswinUSGS10402.76 GoodClearNONE1Imported Channel 1CWAYunspeunkno104085.02414.32UNSPUNSPUNSPunknUNSPUNSPUNSP
11927-09-12 01:16AKSTYeswdeUSGS2101.16 GoodClearNONE1Imported Channel 1CWAYunspeunkno21077.087.62.40UNSPUNSPUNSPunknUNSPUNSPUNSP