Most of the aqueducts were built underground because that was the most efficient way to move the water. The underground pipes were easier to repair if there were a problem. The above ground aqueducts were only used when it was impractical for an underground one, such as supplying the city of Rome or any large city.
The Romans did not ensure that the water from the aqueducts reached the city. The water did not come from the aqueducts. It came from the sources on the mountains. The aqueducts were what made the water reach the city. They were water conduits which carried the water. An incline was what made the water move. Down the sides of the mountains it was the slope which provided the incline. In flat areas the conduit was placed on bridgework which had a slight incline. Most of the aqueducts were underground conduits.
The Romans had a complex system of aqueducts that ran throughout the entire empire that delivered clean water to all the cities.
The Colosseum, the Pantheon and Hadrian's Wall are three of the most famous structures that the Romans built.
Most ancient civilisations built aqueducts because of the importance of water. There were aqueducts both in Greece and Rome. The Roman aqueducts are more famous.
Just a few of the most famous Roman structures are the Colosseum, the Pantheon, the temple of Venus and Rome, the Forum Romanum, the Aqueducts and of course, their roads.
The Romans built their aqueducts in most areas of the Roman Empire, which covered Western Europe up to the river Rhine, Southe-astern Europe (the Balkan Peninsula) present day Turkey, Syria and the eastern coast of the Mediterranean and North Africa.
Most of the Romans aqueducts were underground conduits. They put the conduits on bridgework when they needed to cross a valley or when they needed to keep it at a gradient to keep the water flowing.
The Romans built many aqueducts, in Rome and elsewhere. You need to be more specific
The Romans did not ensure that the water from the aqueducts reached the city. The water did not come from the aqueducts. It came from the sources on the mountains. The aqueducts were what made the water reach the city. They were water conduits which carried the water. An incline was what made the water move. Down the sides of the mountains it was the slope which provided the incline. In flat areas the conduit was placed on bridgework which had a slight incline. Most of the aqueducts were underground conduits.
The Romans did not ensure that the water from the aqueducts reached the city. The water did not come from the aqueducts. It came from the sources on the mountains. The aqueducts were what made the water reach the city. They were water conduits which carried the water. An incline was what made the water move. Down the sides of the mountains it was the slope which provided the incline. In flat areas the conduit was placed on bridgework which had a slight incline. Most of the aqueducts were underground conduits.
The Romans had a complex system of aqueducts that ran throughout the entire empire that delivered clean water to all the cities.
They built aqueducts to bring fresh water form the sources on the mountains.
The Colosseum, the Pantheon and Hadrian's Wall are three of the most famous structures that the Romans built.
Most ancient civilisations built aqueducts because of the importance of water. There were aqueducts both in Greece and Rome. The Roman aqueducts are more famous.
The Romans built roads and aqueducts that are still standing 2000 years later. But their most iconic architectural work is the Colosseum in Rome.
The most accurate answer to your question would be "as long as it took". The time spent on constructing an aqueduct depended upon its length, and type and the terrain it had to cover. The Romans were highly efficient builders and organizers and the military did most of the building of the aqueducts, roads, bridges, etc. As most aqueducts were under ground, it was basically a matter of digging and lining and the project could be finished very quickly. The above ground aqueducts took slightly more time as the arches and supports had to be constructed.
The aqueducts that span across the Italian city of Rome and many other locations that used to be a part of the great Roman empire were built by the Romans, but the Romans didn't originally design them. They have influences from India, Persia, and South America, and in turn inspired many more. The Roman aqueducts just happen to be the most famous, partially because of Rome's influence at the time and partially because they are a phenomenal example of the Romans' use of arches in their architecture for both strength and beauty.