River DC MD PA VA WV

Potomac River

District of Columbia • 38.7500, -77.0667

Length

469 mi

755 km

Elevation

520′ → -2′

522 ft drop

Stream Order

8

Major River

Slope

0.02%

1.1 ft/mi

Drainage

14,158 mi²

36,669 km²

Avg Flow

11,498 cfs

2.8 mph velocity

Path to Mouth

371 mi

598 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

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