East Branch Penobscot River At Grindstone, Maine Realtime Data
EAST BRANCH PENOBSCOT RIVER AT GRINDSTONE, MAINE
Realtime Data • Report • Conditions
644
Discharge (cfs)
4.8
Gauge Height (ft)
USGS 01029500
Streamflow discharge was last observed at 577 cfs, and a gauge height of 4.82 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 751 .
Weather today, Tomorrow,
The primary flow contributor is the East Branch Penobscot River, which receives water from several smaller tributaries. The area is home to several dams, including the Grindstone Project and the West Branch Project, which can affect water levels. The hydrology of the area is influenced by seasonal trends, with higher flows in the spring due to snowmelt and precipitation. The river is also known for its excellent trout fishing.
July 17, 2026
| Elevation | 353.0 ft |
| Last Updated | |
| Gage height, ft | 4.82 ft |
| Streamflow, ft³/s | 577.0 ft3/s |
| Percent of Normal | 78% |
| Year Over Year Average | 830 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 22,800 cfs |
| Geolocation | 45.73, -68.59 |
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