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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 15087585 TWELVEMILE C NR PETERSBURG AK


Petersburg Borough, Alaska
Hydrologic Unit Code 190102100103
Latitude  56°58'07", Longitude 133°04'05" NAD83
Drainage area 9.6  square miles
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
 
352025-01-23 10:21AKSTYesJCT/ECUSGS34.722.750.010.50FairDebrisLightunkn
342025-01-23 09:15:30AKSTYesJCT/ECUSGS35.122.760.011.00FairDebrisLightunkn
332024-11-14 08:32AKSTYesJCT/CMJUSGS22.122.510.010.75FairDebrisLightunkn
322024-08-14 14:31AKDTYesJCT, MHHusgs10.622.310.000.53PoorClearunkn
312024-06-25 13:57AKDTYesMHH, CMJusgs40.022.790.010.37FairClearunkn
302024-06-25 13:31AKDTYesMHH, CMJusgs41.522.800.010.67FairClearunkn
292024-05-14 14:43:30AKDTYesMHH, JCTusgs15823.760.010.75FairClearunkn
282024-03-21 14:36AKDTNo
272024-01-03 08:58AKSTYesMHH, JCTusgs39.822.760.010.50FairClearunkn
262023-11-06 13:21AKSTYesMHHusgs13923.540.180.50PoorClearunkn
252023-09-06 12:02AKDTYesMHHusgs16.622.440.000.47PoorClearunkn
242023-07-12 09:47AKDTNo
232023-05-31 10:45AKDTNo
222023-01-10 11:26AKSTYesMHH, JLPusgs32.123.040.020.63PoorIceAnchorunkn
212022-10-17 15:28:30AKDTYesMHH/PENusgs38424.860.421.50PoorClearunkn
202022-08-22 14:20:30AKDTYesCMJ MHH PENusgs24.022.620.001.25Fair unkn
192022-06-29 09:52:30AKDTYesPENUSGS10223.44-0.010.75Poor unkn
182022-06-08 08:15AKDTYesCMJ JMGusgs10523.420.000.50Fair unkn
172022-03-03 11:40AKSTYesCMJ, JMGusgs25.822.650.000.75FairClearunkn
162021-10-15 14:58:30AKDTYesCMJ, PENUSGS77.623.080.020.75Good unkn
152021-09-15 11:17AKDTYesJLP, PENUSGS56.022.910.000.67Good unkn
142021-05-27 12:37AKDTYesrhh/jmgUSGS44.322.760.000.50GoodClearunkn
132021-05-19 12:26AKDTYesrhh/jmgUSGS46.622.770.000.50FairClearunkn
122021-04-29 17:26:30AKDTYesrhh/jmgUSGS67.723.02 FairClearunkn
111982-10-14 19:37AKDTYesswannerUSGS60.26.92 Unknown unkn
101981-12-06 17:47AKSTYesswanner, imbUSGS71.07.10 Unknown unkn
91980-10-21 19:09:30AKDTYesswannerUSGS60.16.86 Unknown unkn
81979-09-17 21:22AKDTYesswanner, schUSGS1067.24 Unknown unkn
71978-11-04 19:32AKSTYesswanner, graUSGS70.06.94 Unknown unkn
61977-10-06 21:24:30AKDTYesswanner, kisUSGS15.46.42 Unknown unkn
51975-10-21 20:14:30AKDTYesswanner, thoUSGS67.36.91 Unknown unkn
41975-06-22 21:59:30AKDTYesthomas kuhuUSGS57.77.11 Unknown unkn
31974-04-12 22:17AKDTYeslovelace, mcUSGS59.17.29 Unknown unkn
21972-11-09 18:22AKSTYeswiggins, kleUSGS2327.90 Unknown unkn
11972-06-18 18:32AKDTYeslumanUSGS60.6 Unknown unkn