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.
Stanley Ferry Aqueduct
Stanley Ferry Aqueduct was built between 1836 and 1839 to take the Aire and Calder Navigation over the River Calder in West Yorkshire, England. It is one of the earliest through arch bridges in the world and is considered to be the longest span aqueduct executed in cast iron.