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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 15104000 PORCUPINE R NR CHICHAGOF AK


Hoonah-Angoon Census Area County, Alaska
Hydrologic Unit Code 190102111601
Latitude  57°50'05", Longitude 136°20'25" NAD27
Drainage area 7.12  square miles
Gage datum 304.0 feet above NAVD88
Output formats
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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
 
61920-06-13 07:35AKSTYescanUSGS84.01.24 PoorClearNONE
51919-03-01 14:00AKSTYeskimUSGS36.00.53 PoorIceCoverNONE
41919-01-25 12:30AKSTYeskimUSGS69.00.94 PoorClearNONE
31919-01-16 13:30AKSTYeskimUSGS1121.30 PoorClearNONE
21918-08-05 10:10AKSTYesfstUSGS67.50.96 GoodClearNONE
11918-06-12 10:45AKSTYescanUSGS1401.60 GoodClearNONE