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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 01029100 E. Br. Penobscot River below Grand Lake Matagamon
Penobscot County, Maine
Hydrologic Unit Code 010200020302
Latitude  46°08'03.70", Longitude  68°47'38.06" NAD83
Drainage area 493.0  square miles
Gage datum 626.0 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 
152025-06-23 10:31:52EDTYesJRP/JMMUSGS6553.340.010.20FairClearunkn
142025-05-02 09:53:47EDTYesJRPUSGS37606.260.010.30FairClearunkn
132025-03-24 10:12:07EDTYesJRP/JMMUSGS26005.400.010.20FairClearunkn
122025-03-10 08:57:32EDTYesJRP/JRCUSGS2942.700.000.25FairClearunkn
112025-01-27 08:54:06ESTYesJRP/JMMUSGS4012.900.000.30FairIceShoreunkn
102024-11-12 09:10:03ESTYesJRP/JMKUSGS1972.500.010.70FairClearunkn
92024-10-03 12:58:55EDTYesJRP/JMKUSGS2152.530.011.00FairClearunkn
82024-10-03 12:48:37EDTYesJRP/JMKUSGS2152.530.001.00FairClearunkn
72024-10-02 17:30:54EDTYesJRP/JMK/JMM/USGS19004.790.000.20FairClearunkn
62024-06-24 08:49:19EDTYesJRPUSGS3702.850.000.20FairClearunkn
52024-05-15 11:27EDTYesARCUSGS12904.140.000.25FairClearunkn
42024-05-15 09:04:10EDTYesARCUSGS6033.220.000.30FairClearunkn
22024-05-13 16:05:07EDTYesJRP/ARC/HSG/USGS3782.850.011.10FairClearunkn
32024-05-13 15:51:57EDTYesJRP/ARC/HSG/USGS3692.850.000.25FairClearunkn
12024-05-13 15:49:58EDTYesJRP/ARC/HSG/USGS3582.850.001.00FairClearunkn