what historic building in Washington, D.C. is located near the canal who's primary cargo is coal
Chesapeake and Ohio Canal The Chesapeake and Ohio Canal, abbreviated as the C&O Canal and occasionally called the "Grand Old Ditch," operated from 1831 until 1924 along the Potomac River from Washington, D.C., to Cumberland, Maryland. The canal's principal cargo was coal from the Allegheny Mountains.
Taft Bridge The Taft Bridge, also known as the Connecticut Avenue Bridge or William Howard Taft Bridge, is a historic bridge located in the Northwest quadrant of Washington, D.C. It carries Connecticut Avenue over the Rock Creek gorge, including Rock Creek and the Rock Creek and Potomac Parkway, connecting the neighborhoods of Woodley Park and Kalorama. It is situated to the southwest of the Duke Ellington Bridge.