Potomac River Guide Home

Interactive Maps

The Lower Potomac

The Potomac Estuary

Mount Vernon to Reagan Airport

Mall Area

Georgetown to Great Falls

Potomac Piedmont

Upper Potomac

The North Branch

Boat Ramps

Monitoring Sites

Bridges and Ferries

Cruises and Charters

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Low Water Bridge at Oldtown, MD Area Map

Potomac River Highway Bridge

Nearby Sites
Contact Information
Oldtown Maryland State Highway Administration
1251 Vocke Road
LaVale MD 21502
301-729-8406
Website