Interstate 66 (I-66) is a 76.32 mile east–west Interstate Highway in the eastern United States. The highway runs from an interchange with I-81 near Middletown, Virginia, on its western end to an interchange with U.S. Route 29 (US 29) in Washington, D.C., at the eastern terminus. Much of the route parallels US 29 or State Route 55 (SR 55) in Virginia. I-66 has no physical or historical connection to US 66, which was located in a different region of the United States.
Western terminus of I-66 at the interchange with I-81 in Middletown, Virginia
I-66 in Oakton, with a Washington Metro train using the tracks in the median
The E Street Expressway just east of I-66
I-66 in Fairfax County with the Metrorail Orange Line in the median. The left lane is an HOV lane, and the right shoulder is used as a travel lane during rush hour; both lanes were widened as part of the Transform 66 project.
Middletown is a town in Frederick County, Virginia, United States, in the northern Shenandoah Valley. The population was 1,265 at the 2010 census, up from 1,015 at the 2000 census.
The Wayside Inn (1797) in Middletown
View north along US 11 in Middletown