River MA

Hollenbeck River

Massachusetts • 41.9290, -73.3122

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

18 mi

29 km

Elevation

1,388′ → 634′

753 ft drop

Stream Order

Medium River

Slope

0.79%

41.8 ft/mi

Drainage

41 mi²

106 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

217 mi

349 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