166/366 - Dalecarlia Tunnel (Capital Crescent Trail)
Manny convinced me to go riding with him on the Capital Crescent Trail. I agreed, as long as we could stop for me to photograph the tunnel that is part of the path.
The Dalecarlia Tunnel is an abandoned railroad tunnel in Brookmont, Maryland, near Washington, D.C., that carries the Capital Crescent Trail underneath MacArthur Boulevard and the Washington Aqueduct.
It was built in 1910 as part of the Georgetown Branch of the Baltimore and Ohio Railroad. It is a Roman arch tunnel, measuring 18 feet (5.5 m) wide by 340 feet (100 m) long. It features decorative brick facings on both ends and is lined with brick throughout its length.
CSX Transportation, the successor to the B&O Railroad, ceased train operations through the tunnel in 1985 and officially abandoned the rail line in 1986.
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