River NH ME

Great Works River

New Hampshire • 43.3014, -70.7375

Hydrography profile Updated Dec 26, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

30 mi

49 km

Elevation

436′ → 0′

436 ft drop

Stream Order

Medium River

Slope

0.27%

14.4 ft/mi

Drainage

87 mi²

225 km²

Avg Flow

162 cfs

1.0 mph velocity

Path to Mouth

47 mi

76 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

Data from EPA Water Quality Portal (USGS, EPA, state agencies).

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Data from USGS & NOAA for informational purposes only. Read source and safety notes

Rain Radar