Roman Aqueducts: Invisible Infrastructure for a City
Explore source water, subtle gradients, covered channels, stone weathering, settling tanks, distribution, baths, fountains, and sewers as one urban system.
The spring and the gradient
A Roman aqueduct drew water from a source higher than the city and carried it down on a gentle, carefully held slope. The hard part was never distance — it was keeping the water surface at the right height and the flow at the right speed. Too steep and the channel wears away; too shallow and the water stalls, dropping sand and lime along the way.
Take in the whole run from spring to city, and see where the difference in elevation is spent.
What moves the water is not a pump. It is the terrain and gravity.
The starting point that takes water from a mountain-side source toward the city. Not just the volume but the difference in elevation sets the whole design.
Show the visible structures and the hidden piping from the source to the city outlet as one system.
The water surface keeps dropping slightly, balancing flow speed against the load on the channel.
Read not only the visible stone arches but also the covered channel, settling tank, distribution tank, and the pipes within the city.
A state where volume, slope, and distribution are all maintained.
Water reaches the fountains and baths steadily, and the excess flows into the sewers.
Keep cleaning the settling tank and inspecting the channel, and adjust the distribution-tank outlets.