Contributed by David Verne
The Aqua Traiana, Trajan's Aqueduct, is completed this year and becomes the 10th aqueduct supplying water to Rome. Trajan's Aqueduct didn't just supply drinking water; it also supplied a large set of mills that supplied flour to the city.
My Take by David Verne
Rome was at the peak of its population, housing nearly 1 million people. This required the import of thousands of tons of grain every year, extensive and ever expanding aqueducts, and a large sewer network. The aqueduct water was stored in large basins that allowed impurities and sediment to settle to the bottom so that the highest quality water would go to drinking and cooking, while the lower quality water emptied into the sewers.