River NJ NY

Mahwah River

New Jersey • 41.1411, -74.1161

Length

12 mi

19 km

Elevation

531′ → 259′

271 ft drop

Stream Order

4

Medium River

Slope

0.45%

23.5 ft/mi

Drainage

25 mi²

65 km²

Avg Flow

48 cfs

0.9 mph velocity

Path to Mouth

98 mi

157 km to ocean

Classification

Headwater

Source Stream

Elevation Profile

Water Quality

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

EPA WQP MyWaterway

Data from USGS & NOAA for informational purposes only. More