The river is spanned with bridges, and its valley by two viaducts, the larger of which (completed in 1878 at a cost of more than $ 2,000,000), 3 211 ft.
This railway, which was completed in 1854, is the oldest of the great continental mountain railways, and is remarkable for its numerous and long tunnels, its viaducts and galleries.
Long bridges of several spans are often termed " viaducts," and bridges carrying canals are termed " aqueducts," though this term is sometimes used for waterways which have no bridge structure.
The double bridge of Cernavoda, with the viaducts leading to it, stretches for 122 m.
When, however, a company desires to construct a line on a commercial scale, to acquire land compulsorily, to divert rivers and streams, to cross roads either on the level or by means of bridges, to pass near houses, to build tunnels or viaducts, and to execute all the other works incidental to a.