DC's Landmarks of Transportation
From the beginning, DC has been shaped by new technologies and advancements in transportation. Early on, the District — specifically, Georgetown — was the starting point for the Chesapeake & Ohio (C&O) Canal, an important linkage to the Ohio River Valley and points farther west. The canal, which follows the Potomac River, is now a National Historical Park and a popular destination for Washingtonians seeking to explore and enjoy both history and nature.
Like other American cities in the 19th and 20th centuries, railroads and streetcars were highly influential. Railroads connected Washington to other towns and cities, and, over a century later, Washington's Union Station still provides a grand entrance to the city for Amtrak, MARC, and VRE passengers.
Streetcars expanded Washington's neighborhoods and spurred the city's growth outward into what was then considered Washington County (generally, north of Georgetown and Florida Avenue, and east and southeast of the Anacostia River). With the arrival of streetcars, Washingtonians had the option of living farther out in new streetcar suburbs and commuting to work downtown.
As mid-century approached, buses were becoming the preferred method of public transportation, and streetcar lines were removed over a number of years. Nonetheless, some of the city's car barns have been preserved, including East Capitol Street Car Barn on Capitol Hill, the Capital Traction Company Car Barn on 14th Street NW, and Capital Traction Company Union Station in Georgetown. Some of these landmarks have been converted for use by buses or to non-transit uses, such as condominiums. On the other hand, the WRECO Garage on Georgia Avenue NW was constructed for buses, specifically, and Downtown's Greyhound Bus Terminal, an Art Deco masterpiece, illustrates the popularity of buses for traveling around the country from city-to-city.
Simultaneously, cars became more and more popular, as illustrated by landmarks like Mott Motors on H Street NE and Chapman Stables and Garages in Truxton Circle. Similar to how buses led to the repurposing of car barns, automobiles shaped the existing built environment, as stables, for example, were converted to new uses as garages. As the city grew, large-scale transportation infrastructure, such as parkways and bridges, became more critical to the functioning of the city. Often times, bridges were designed and constructed with a high-level of craftsmanship, highlighting their importance to the District and its residents.
Finally, some modes of transportation are truly unique to Washington, with the USS Sequoia being a prime example. The presidential yacht, a National Historic Landmark, was used by every president from FDR to Jimmy Carter.
This tour seeks to highlight DC's transportation-related historic landmarks.
Sites 18

Arlington Memorial Bridge: The Arlington Memorial Bridge spans the Potomac River between the Lincoln Memorial in Washington and Arlington House in Virginia.
Arlington Memorial Bridge is a low, Neoclassical style bridge that was designed by the architecture firm of McKim, Mead & White, and opened in 1932. Nine broad arches cross the river; roadways…
C&O Canal National Historical Park: The Chesapeake and Ohio Canal is an excellent and well-preserved example of 19th-century canal technology.
The C&O Canal Company was chartered in 1825, the same year as the opening of the Erie Canal. The groundbreaking was celebrated by President John Quincy Adams at Little Falls in 1828. The canal was…
Capital Traction Company Car Barn: This building is one of the most architecturally impressive of the seven remaining streetcar barns in DC.
Also known as the Decatur Street Car Barn and the Northern Bus Garage, the Capital Traction Company Car Barn, built in 1906 and designed by prominent local firm Wood, Donn and Deming, is one of only…
Capital Traction Company Union Station: This site’s infamous appearance in the 1973 horror film The Exorcist sometimes overshadows its architectural importance and its historical significance in early urban transportation.
Located in the Georgetown Historic District in Northwest Washington, the Capital Traction Company Union Station (Capital Traction) property includes the central structure (also referred to as the…
Chapman Coal Company Stable and Garage: The Chapman Coal Company Stable and Garage is a collection of buildings constructed by coal dealer and developer J. Edward Chapman between 1906 and 1929.
The Chapman Coal Company Stable and Garage is an important surviving building in what was once a bustling light industrial complex established in the early-20th century. The site evolved over the…
Duke Ellington Bridge (Calvert Street Bridge): Built in the 1930s to accommodate streetcars, this bridge was renamed for jazz musician Duke Ellington after his death in 1974.
Built in 1935, this bridge replaced the 1891 iron trestle bridge that had been constructed in the same location. The Commission of Fine Arts considered bridge designs for this site for years before…
East Capitol Street Car Barn (Metropolitan Railroad Company Car Barn): This large, well preserved, picturesque building is intrinsically linked to the history of Washington's rapid transit system.
The East Capitol Street Car Barn building, designed by Waddy B. Wood, was erected as a car barn, repair shop, and administrative offices for the Metropolitan Railroad Company in 1896. It is an…
Greyhound Bus Terminal (including Interior Lobby and Waiting Room): This Streamline Moderne former bus terminal is notable for both its design and its role in the Freedom Rides.
The Greyhound Bus Terminal, completed in 1940, is a classic Art Deco/Streamline Moderne landmark, with a design aesthetic that epitomizes the promise of the industrial age as the hope for the future.…
Key Bridge: The Francis Scott Key Bridge spans the Potomac River, connecting Georgetown, DC to Rosslyn, VA.
The Francis Scott Key Bridge, spanning the Potomac River between Washington, DC and Arlington, Virginia, is a skillfully designed reinforced concrete arch bridge. Originally constructed to provide…
Klingle Valley Bridge: This bridge was constructed in 1931 to replace an earlier viaduct built by a streetcar company to extend Connecticut Avenue to the Maryland line.
The Klingle Valley Bridge—also known as the Connecticut Avenue Bridge over Klingle Valley and DC Bridge No. 27—carries Connecticut Avenue over the deep, wooded ravine of the Klingle Valley in…
Mott Motors (Plymouth Theater): Built as a car dealership in the 1920s, this building later became a theater for Black moviegoers during segregation.
Built in 1928, the one-story commercial Mott Motors building typifies the small automobile dealerships that fostered the transformation of traditional retail streets into automobile-oriented shopping…
Proctor Alley Livery Stable: Built in 1894, this building served as a horse stable for 14 years before being converted into an automobile garage, and later a condo building.
The Proctor Alley Livery Stable is a rare surviving example of a large-scale commercial livery stable with distinguishing features illustrating state-of-the-art technology for a late-19th century…
Rock Creek and Potomac Parkway Historic District: This historic landscape is composed of 19th century industrial structures, natural vegetation, and a major transportation artery of the city.
The Rock Creek and Potomac Parkway Historic District’s 180-acres runs along the gorge and rim of the lower Rock Creek Valley (south of the National Zoo), and includes a swath of land along the Potomac…
Suitland Parkway Historic District: This parkway, linking DC to Andrews Air Force Base, is part of a network of planned entryways into the national capital.
Authorized in 1937, Suitland Parkway was not built until 1943-44, when it was considered an important transportation route to a major military airfield, Andrews Air Force Base. Suitland Parkway…
Taft Bridge: The Taft Bridge, constructed from 1897 to 1907, is a monolithic arched structure spanning Rock Creek and Potomac Parkway.
The William Howard Taft Bridge, constructed between 1897 and 1907, represents the culmination of 19th-century bridge design, exemplifying the transition from utilitarian structures to artistic…
USS Sequoia (Presidential Yacht): Built in 1924, the USS Sequoia is one of four surviving presidential yachts.
Designed by notable yacht designer John Trumpy, the USS Sequoia is a 104-foot long wooden boat with a single mast. Nine presidents utilized the Sequoia between 1931 and 1977. The yacht provided a…
Union Station and Plaza: This grand train and bus terminal became the gateway to the nation's capital upon its opening in 1907.
One of the first great union terminals, this imperial station with its vast interior spaces was the cornerstone of the McMillan Commission’s efforts to revive Pierre L’Enfant’s original plan of the…
Washington Railway and Electric Company (WRECO) Garage: The WRECO Garage is Washington DC’s first purpose-built garage for servicing and storing transit buses.
The Washington Railway and Electric Company (WRECO) Garage contributed to the development of mass transit systems in the District and surrounding commercial development of the area around the…Tour curated by: DC Preservation League