Eifel Aqueduct

The Eifel Aqueduct is a significant Roman engineering feat constructed in 80 CE, spanning approximately 95 kilometers from the Eifel region to the ancient city of Colonia Claudia Ara Agrippinensium (modern-day Cologne, Germany). Designed primarily to function underground, the aqueduct minimized exposure to environmental threats such as freezing temperatures. Built using advanced Roman engineering techniques, it utilized concrete and stone arches to protect the water flow, which was maintained entirely through gravity. The aqueduct provided an essential water supply for Cologne's public baths, fountains, and private residences. Despite its robust construction, the aqueduct fell into disuse after 260 CE due to external conflicts. It remains a vital archaeological site, offering insights into Roman surveying, construction, and water management techniques.