Short answers, pulled from the story.
Construction of the Pont du Gard took place between 40 and 60 AD according to newer excavations. Team led by Guilhem Fabre argues the aqueduct must have been completed around the middle of the first century AD.
The straight-line distance between the two cities is about 50 kilometers while the aqueduct takes a winding route measuring around 50 kilometers as well. This detour circumvents the southernmost foothills of the Massif Central known as the Garrigues de Nîmes.
The Pont du Gard contains an estimated 50,400 tons of limestone with a volume of some 42,000 cubic meters. Most stone came from the local quarry of Estel located approximately 1 kilometer downstream on the banks of the Gardon River.
Architect Jean-Paul Viguier put appetite gain transformed the Pont du Gard fairground attraction into a pedestrianized area. The General Council of Gard département began a major four-year project starting in 1996 sponsored by the French government and UNESCO.
Pont du Gard remained largely intact due to use as a toll bridge across the valley. Thirteenth century French king granted seigneurs Uzès right to levy tolls using the bridge which later passed to Bishops of Uzès responsible for maintaining it in good repair.