Washington Outer Beltway

The Washington Outer Beltway was a proposed freeway that would have extended further out than the Capital Beltway and encircled Washington, D.C. through the states of Maryland and Virginia.

A 1964 plan proposed by a consultant for Prince William County showed a 162-mile (261 km) freeway passing by Quantico, Manassas, Leesburg, Poolesville, upper Montgomery County, Fort Meade, southeastern Prince George's County, and La Plata. Most of the route was canceled in the 1980s. Parts of it have been built as the Fairfax County Parkway in Virginia and the Intercounty Connector in Maryland.