Culverts

Culverts took the canal across small streams; aqueducts (bridgelike structures that can carry a water conduit across a valley or over a river) got the canal over bigger streams.

Kate Kelly: The Significance of the Catoctin Aqueduct in the Story of American Transportation 2010

Culverts, bridges, or deep cuts may be good locations.

FM 7-98 Chptr 2 - Support For Insurgency and Cntrinsrgncy United States Army 1992

Culverts with 5 feet or less of fill may be destroyed by explosive charges placed in the same manner as in hasty road cratering.

Army Field Manual: Explosives and Demolutions Extract by the Death Jester 1971

Abutments and Piers, as well as Box and Arch Culverts, belonging more properly to masonry, will be treated of hereafter under that head.

Instructions on Modern American Bridge Building

Culverts, Arches; the Theory of Reinforced Concrete; the design and construction of the simpler Reinforced Concrete Structures.

The University of Virginia Record 1917

Culverts, Arches; The Theory of Reinforced Concrete; the design and construction of the simpler Reinforced Concrete Structures.

The University of Virginia Record 1916

Culverts, Arches; The Theory of Reinforced Concrete; the design and construction of the simpler Reinforced Concrete Structures.

University of Virginia Record 1915

Culverts of hewn stone of sufficient size to carry off the water and protect the embankment, have been built in a strong and permanent manner.

Proceedings of the Sixth Annual Meeting of the Stockholders of the Raleigh & Gaston Railroad Company, Held at Raleigh, Nov. 1, 1856; with the Reports of the President, Treasurer, &c. Raleigh 1856

We have built and repaired six Culverts, besides other masonry of a miscellaneous character.

Proceedings of the Sixth Annual Meeting of the Stockholders of the Raleigh & Gaston Railroad Company, Held at Raleigh, Nov. 1, 1856; with the Reports of the President, Treasurer, &c. Raleigh 1856

Culverts built into the river's levee system were opened, redirecting freshwater into saltwater estuaries.

The Seattle Times 2010