On the Aqueducts

The Aqueducts of Rome (c. 100)
by Sextus Julius Frontinus, translated by Charles E. Bennett and Clemens Herschel, edited by Mary Belle McElwain

sister projects: Wikipedia article, Wikidata item.

From Loeb Classical Library, L174 Frontinus: The Stratagems, and, the Aqueducts of Rome. You can find an additional map and tables showing the capacity of the aqueducts there.

Sextus Julius FrontinusCharles E. Bennett and Clemens Herschel3656999The Aqueducts of Romec/100Frontinus - The stratagems, and, the aqueducts of Rome (Bennet et al 1925).djvu/9

Book 1 (Chapters 1–63)
Book 2 (Chapters 64–130)