State Route 420 (SR 420) is an

unsigned Unsigned can refer to: * An unsigned artist is a musical artist or group not attached or signed to a record label ** Unsigned Music Awards, ceremony noting achievements of unsigned artists ** Unsigned band web, online community * Similarly, the c ...

primary state highway in the U.S. state of

Virginia Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth ar ...

. The state highway is known as Seminary Road and Janneys Lane on its course from Interstate 395 (I-395) east to SR 7 within the

independent city An independent city or independent town is a city or town that does not form part of another general-purpose local government entity (such as a province). Historical precursors In the Holy Roman Empire, and to a degree in its successor states ...

Alexandria Alexandria ( or ; ar, ٱلْإِسْكَنْدَرِيَّةُ ; grc-gre, Αλεξάνδρεια, Alexándria) is the second largest city in Egypt, and the largest city on the Mediterranean coast. Founded in by Alexander the Great, Alexandri ...

Route description

SR 420 begins at a

three-level diamond interchange A three-level diamond interchange is a type of highway interchange where through traffic on both main roads is grade-separated from intersections which handle transferring traffic. It is similar in design to a three-level stacked roundabout exc ...

with I-395 (Henry G. Shirley Memorial Highway). The roadway continues west as an unnumbered segment of Seminary Road that passes by the

Mark Center Building The Mark Center Building is a United States military installation and office building in Alexandria, Virginia. It is operated by the Washington Headquarters Services (WHS) of the United States Department of Defense (DoD), and provides office sp ...

, a massive office building for the

United States Department of Defense The United States Department of Defense (DoD, USDOD or DOD) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national sec ...

, on its way to Bailey's Crossroads. SR 420, which begins as a four-lane

divided highway A dual carriageway ( BE) or divided highway ( AE) is a class of highway with carriageways for traffic travelling in opposite directions separated by a central reservation (BrE) or median (AmE). Roads with two or more carriageways which are ...

, crosses over the northern terminus of SR 401 (Van Dorn Street) immediately to the east of the I-395 interchange. Access to SR 401 is provided via a pair of

right-in/right-out Right-in/right-out (RIRO) and left-in/left-out (LILO) refer to a type of three-way road intersection where turning movements of vehicles are restricted. A RIRO permits only right turns and a LILO permits only left turns. "Right-in" and "left-in" r ...

intersections with Kenmore Avenue. SR 420 reduces to a four-lane undivided street that passes by Inova Alexandria Hospital, after which it again narrows to a two-lane road with a

center left-turn lane A reversible lane (British English: tidal flow) is a lane in which traffic may travel in either direction, depending on certain conditions. Typically, it is meant to improve traffic flow during rush hours, by having overhead traffic lights and li ...

. The state highway passes its namesake, the

Virginia Theological Seminary Virginia Theological Seminary (VTS), formally called the Protestant Episcopal Theological Seminary in Virginia, located at 3737 Seminary Road in Alexandria, Virginia is the largest and second oldest accredited Episcopal seminary in the Unit ...

, just west of its intersection with Quaker Lane, which heads north as SR 402. SR 420 continues east as Janneys Lane, a two-lane undivided street that passes to the north of the Gerald R. Ford Jr. House on its way to its eastern terminus at SR 7 (King Street).

History

SR 420 was assigned to its present location, previously unnumbered, in the mid-1980s. However, as it was once part of Fairfax County, the Seminary Road portion of SR 420 was numbered SR 716 until it was annexed by Alexandria in the 1950s.

Major intersections

References

External links

{{Attached KML, display=title,inline
Virginia Highways Project: VA 420

420 420 may refer to: * 420 (number) *420 (cannabis culture), informal reference to cannabis use and celebrations on April 20 ** California Senate Bill 420 or the Medical Marijuana Program Act *AD 420, a year in the 5th century of the Julian calendar * ...

State Route 420