Technology
The ancient Romans also had a complex system of aqueducts, which were used to transport water across long distances. The first Roman aqueduct was built in 312 BCE. The eleventh and final ancient Roman aqueduct was built in 226 CE. Put together, the Roman aqueducts extended over 450 kilometers, but less than seventy kilometers of this was above ground and supported by arches.
Aqueducts on the C&amp;O Canal
The Town Creek Aqueduct (#10), like the other aqueducts on the last , was begun in 1838, and had the contract abandoned and later another contractor began work (in 1847). It was completed in the Summer of 1850. The Western Maryland Railway constructed a bridge next to this aqueduct.