The Pont du Gard aqueduct in southern FranceThe Romans were expert builders and engineers. They built thousands of kilometres of roads across their empire. They also built great aqueducts, long stone channels that carried water into towns and cities from rivers or lakes. Many incredible structures built by the Romans still stand today.
Building a large, arched bridge for the aqueduct required carefully planning. First, concrete columns with brick or stone outer...Read More >>Building a large, arched bridge for the aqueduct required carefully planning. First, concrete columns with brick or stone outer casings were built. Then wooden frames linking one column to the next were put in place. This supported the arch during its construction. Finally the covered water channel or conduit was built inside the top of the arched bridge.Romans built aqueducts to channel water direct from mountain springs to towns and cities all over the empire. Some aqueducts were more than 40 kilometres (25 miles) long. They had to be built with just the right slope along their length so that the water flowed freely. Where an aqueduct crossed a valley, engineers built a bridge made from stone or brick. Rounded arches were often used: they had great architectural strength.
The Romans built 85,000 km (53,000 miles) of roads across their empire.
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