How did the romans have uphill streams?

The Romans engineered uphill streams through a system of aqueducts, which were designed to transport water from higher elevations to lower areas, often requiring intricate calculations of gradient and elevation. They employed gravity to maintain a steady flow, using arches and bridges to navigate valleys and uneven terrain. Additionally, they built settling tanks and distribution points to manage the water supply efficiently. This advanced engineering allowed them to supply cities with fresh water, even from distant sources.