The Dalecarlia Tunnel in Brookmont,

Maryland Maryland ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic region of the United States. It borders the states of Virginia to its south, West Virginia to its west, Pennsylvania to its north, and Delaware to its east ...

, near

Washington, D.C. Washington, D.C., formally the District of Columbia and commonly known as Washington or D.C., is the capital city and federal district of the United States. The city is on the Potomac River, across from Virginia, and shares land borders with ...

, is a former railroad tunnel that presently carries the

Capital Crescent Trail The Capital Crescent Trail (CCT) is a , shared-use rail trail that runs from Georgetown in Washington, D.C., to Bethesda, Maryland. An extension of the trail from Bethesda to Silver Spring along a route formerly known as the Georgetown Branch ...

underneath MacArthur Boulevard and the

Washington Aqueduct The Washington Aqueduct is an Aqueduct (water supply), aqueduct that provides the public water supply system serving Washington, D.C., and parts of its suburbs, using water from the Potomac River. One of the first major aqueduct projects in the ...

. It was built in 1910 as part of the Georgetown Branch of the

Baltimore and Ohio Railroad The Baltimore and Ohio Railroad was the oldest railroads in North America, oldest railroad in the United States and the first steam engine, steam-operated common carrier. Construction of the line began in 1828, and it operated as B&O from 1830 ...

. It is a

Roman arch In architecture, a semicircular arch is an arch with an intrados (inner surface) shaped like a semicircle. This type of arch was adopted and very widely used by the Romans, thus becoming permanently associated with Roman architecture. Termin ...

tunnel, measuring wide by long. It features decorative

brick A brick is a type of construction material used to build walls, pavements and other elements in masonry construction. Properly, the term ''brick'' denotes a unit primarily composed of clay. But is now also used informally to denote building un ...

facings on both ends and is lined with brick throughout its length.

CSX Transportation CSX Transportation , known colloquially as simply CSX, is a Class I freight railroad company operating in the Eastern United States and the Canadian provinces of Ontario and Quebec. Operating about 21,000 route miles () of track, it is the lead ...

, the successor to the B&O Railroad, ceased train operations through the tunnel in 1985 and officially abandoned the rail line in 1986.

References

External links

The Georgetown Branch
- History and photos
Capital Crescent Trail
{{Maryland hiking trails Brookmont, Maryland Railroad tunnels in Maryland Baltimore and Ohio Railroad tunnels Rail trails in Maryland Transportation buildings and structures in Montgomery County, Maryland Protected areas of Montgomery County, Maryland Tunnels completed in 1910 1910 establishments in Maryland

See also

References

External links