Interstate 66

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Interstate 66 connects I-81 near Strasburg, Virginia to the nation's capital along a 76.28-mile route. The freeway superseded Virginia Route 55 east from Strasburg to Gainesville and U.S. 29 from there east to Rosslyn, Virginia.

Interstate 66 varies between four and six lanes between the Capital Beltway in Virginia and the Theodore Roosevelt Memorial Bridge. Since rescinded, the Virginia portion was restricted to HOV-3 traffic on all lanes during the morning and evening peak hours. This rule was even more restrictive when only HOV-4 eligible vehicles were permitted! Nowadays, the freeway-wide restriction permits HOV-2 for the morning inbound commute and HOV-2 for the evening outbound commute. In addition, a truck ban is in effect east of Interstate 495.

West of the beltway, Interstate 66 carries six to eight lanes with the innermost lane restricted to HOV-2 eligible motorists during peak hours of travel. Another unique aspect is the use of the outside shoulders as an additional travel lane during peak hours. The corridor also encompasses the Washington Metro Orange Line as it lines the median of I-66 west from Exit 71 at Ballston in Arlington to Exit 62 at Vienna.

Although this is a fairly short route, the future aspirations of Interstate 66 are much greater. 2000s additions to the national high priority corridor system resulted in plans that would extend Interstate 66 west from Strasburg across the country via the High Priority Corridor 3: Trans-America Corridor. Interstate 66 is being actively developed by the state of Kentucky, and it is possible that this extant section of the freeway may be extended west to reach Kentucky perhaps via Corridor H/U.S. 48 or perhaps by existing freeways (Interstate 81 and Interstate 64).

Interstate 66 Virginia Guides

Interstate 66 scenes
Virginia Route 243 (Nutley Street) south at the eastbound entrance ramp for I-66 to Arlington and Washington. Nutley Street meets the freeway at a cloverleaf interchange midway between Vienna and the Fairfax area (U.S. 29). Photo taken 09/25/04.

Photo Credits:

09/25/04 by AARoads

Connect with:
Interstate 81
Interstate 95
Interstate 495 / Capital Beltway
U.S. 17
U.S. 29

Page Updated 09-10-2009.