Aqueducts on the C&O Canal

The Chesapeake and Ohio Canal (C&O) used 11 navigable aqueducts to carry the canal over rivers and streams that were too wide for a culvert to contain. Aqueducts, like locks and other masonry structures, were called "works of art" by the canal board of directors.:v

In addition to these 11 aqueducts, there was the Alexandria Aqueduct, which connected the C&O Canal with Alexandria, Virginia, and the Broad Run Trunk Aqueduct, made of wood, and was originally a double culvert, and never listed in company records as an aqueduct.

The aqueducts of the C&O, unlike the Roman aqueducts, were built with inferior materials and cement, and did not have a long life expectancy. Usually the trash from the floods did the most harm to the aqueducts.:81