River WV NY PA

Allegheny River

West Virginia • 42.0466, -78.9148

Length

327 mi

526 km

Elevation

2,446′ → 710′

1,736 ft drop

Stream Order

8

Major River

Slope

0.10%

5.3 ft/mi

Drainage

11,725 mi²

30,368 km²

Avg Flow

20,984 cfs

3.6 mph velocity

Path to Mouth

2,276 mi

3,662 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