Glebe Road (State Route 120)

Glebe Road (State Route 120)
Name	Glebe Road (State Route 120)
Location	Arlington County and City of Alexandria, Virginia
Maint	Virginia Department of Transportation
Direction a	West
Terminus a	Near Falls Church
Direction b	East
Terminus b	Alexandria

Contents

Glebe Road (State Route 120) is a major arterial road in Northern Virginia serving Arlington County and the City of Alexandria and connecting suburban and urban corridors near Interstate 66, Interstate 395, and the George Washington Memorial Parkway. It links residential neighborhoods, commercial districts, and institutional campuses while providing access to Ronald Reagan Washington National Airport, Washington, D.C., and regional highways such as U.S. Route 50 and U.S. Route 1. The route has evolved with changing transportation policy involving the Virginia Department of Transportation, regional planning bodies including the Metropolitan Washington Council of Governments, and local jurisdictions.

Route description

Glebe Road begins near the border with Falls Church, Virginia and proceeds southeast through Arlington County intersecting with Lee Highway (U.S. Route 29), Columbia Pike (U.S. Route 250), and Wilson Boulevard. The corridor passes adjacent to institutional sites like Northern Virginia Community College and the Arlington County Courthouse before crossing under or over regional arteries such as Interstate 66 and connecting to Interstate 395 via ramps near the Pentagon. South of the Potomac River watershed, the road continues into the City of Alexandria, meeting U.S. Route 1 and terminating near the urban grid adjacent to Old Town Alexandria and the George Washington Masonic National Memorial. Along its length Glebe Road serves mixed-use neighborhoods including areas near Clarendon (Arlington County, Virginia), Ballston, and Shirley Highway interchanges.

The corridor that became Glebe Road traces its origins to colonial-era rights-of-way and agricultural access routes connected to plantations and glebe lands associated with Episcopal Church in the United States parishes such as Trinity Church (Alexandria, Virginia). During the 19th century the road featured in local travel between Alexandria, Virginia (City) and rural Fairfax County, Virginia farms and intersected historic routes used during the American Civil War, including troop movements near Fort Ward and Arlington House, The Robert E. Lee Memorial. In the 20th century suburbanization driven by projects like the Alexandria Canal conversion and federal initiatives around The Pentagon and National Airport prompted widening and state designation as State Route 120 by the Commonwealth of Virginia General Assembly and the Virginia Department of Highways and Transportation. Postwar growth brought transit planning from agencies such as the Washington Metropolitan Area Transit Authority and regional studies from the National Capital Planning Commission leading to multimodal adjustments and corridor improvement projects.

Glebe Road intersects or connects with several principal arteries and transit corridors that structure regional movement, including: U.S. Route 50, U.S. Route 29, U.S. Route 1, Interstate 66, Interstate 395, State Route 236, State Route 7, and access to George Washington Memorial Parkway. It also crosses local thoroughfares such as Columbia Pike, Wilson Boulevard, and Arlington Boulevard. These intersections provide transfer points to facilities affiliated with Washington Metropolitan Area Transit Authority, Virginia Railway Express, and the Metrorail system's Yellow Line and Blue Line corridors at nearby stations like Ballston–MU station and Braddock Road station.

Glebe Road is served by multiple Metrobus and Arlington Transit routes, with stops connecting to Washington Metropolitan Area Transit Authority rail stations and Virginia Railway Express commuter rail functions at transfer points. Bicycle infrastructure planning by Arlington County, Virginia and multimodal projects coordinated with the National Park Service and regional planning entities aim to provide improved bikeways and pedestrian crossings, linking to trails such as the Mount Vernon Trail and the Custis Trail. Freight and delivery access is influenced by state-level rules administered by the Virginia Department of Transportation and corridor studies from the Metropolitan Washington Council of Governments, while taxi, rideshare, and microtransit services operate under local ordinances adopted by bodies including the Arlington County Board and the Alexandria City Council.

Prominent sites along or near Glebe Road include civic and cultural institutions such as Arlington County Courthouse, Arlington National Cemetery (nearby), Fort Myer, Ballston Quarter, Clarendon (Arlington County, Virginia), Old Town Alexandria, and academic institutions like George Mason University (Arlington Campus) and Marymount University. Historic properties and parks tied to the route include Fort Ward Museum and Historic Site, Long Branch Nature Center, and preserved antebellum sites related to Mount Vernon. Commercial and civic anchors such as the Ballston Common Mall redevelopment, government installations like The Pentagon, and memorial sites including the U.S. Army Transportation Museum contribute to the corridor's mixed-land-use character.

Traffic management along Glebe Road has combined short-term operational measures and long-term capital improvements coordinated by the Virginia Department of Transportation, Arlington County Department of Environmental Services, and the Alexandria Department of Transportation and Environmental Services. Projects have included intersection improvements with signals and turn lanes influenced by guidelines from the Federal Highway Administration, bus priority and transit signal optimization supported by local transportation demand management initiatives championed by the Metropolitan Washington Council of Governments, and pavement and drainage upgrades tied to resilience planning from the Northern Virginia Regional Commission. Recent planning efforts reference corridor-level studies, complete streets principles endorsed by U.S. Department of Transportation initiatives, and multimodal investments to reduce congestion and enhance safety near high-demand nodes such as Ballston–MU station, Pentagon City, and Braddock Road station.