Note 466 — BOOK X[399]
Alexander Teixeira de Mattos translation
The Aqueduct of Segovia, presumed to be of the time of Trajan, forms a great bridge, 937 feet long, and consisting of 320 arches in two tiers. The tallest arches, in the middle of the lower tier, are 102 feet high. It is built of large blocks of arches, somewhat rounded at the edges and assembled without cement.—T.