Engineering · Roman Empire Daily
Rome's aqueducts moved enormous amounts of water using nothing but a gentle, carefully surveyed slope.
Deep dive
Eleven major aqueducts eventually served the city. Engineers maintained a slight, continuous gradient over many miles so water flowed by gravity, crossing valleys on arches and tunneling through hills. The water fed baths, fountains, and homes.
Source: Frontinus, 'De Aquaeductu' (On the Water Supply of Rome), c. 97 AD.
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