Outer Beltway (Washington, D.C.)

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.

The Techway is a proposal for a limited-access highway across the Potomac River between Fairfax County, Virginia, and Montgomery County, Maryland. The project's name refers to connecting the high-tech firms in Herndon and Reston, Virginia, with the biotechnology companies in Gaithersburg and Rockville, Maryland. The Techway proposal would construct a limited-access highway and bridge linking Virginia State Route 28 north of Washington Dulles International Airport to the western terminus of I-370 in Gaithersburg, Maryland. To avoid criticism that such a project would encourage urban sprawl, the proponents advocated having very few interchanges on the route and emphasizing its use in making Dulles Airport and the associated office buildings in its vicinity more convenient to residents of northern Montgomery County that currently use the American Legion Memorial Bridge.

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