
1) Bridge 2) Bridge over a valley 3) Bridge-like structure 4) Brunel bridge 5) Building by way of channel 6) Crossing 7) Elevated roadway 8) Flyover 9) Overpass 10) Railroad bridge 11) Railway bridge 12) Span 13) Span across a gorge 14) Structure with arches, often 15) Suspension bridge 16) Way to cross by tube
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https://www.crosswordclues.com/clue/viaduct

1) Bridge
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https://www.crosswordclues.com/clue/viaduct

A wall jump with two tunnel-like openings in the base.
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http://budhouston.wordpress.com/a-glossary-of-dog-agility-terms/

A viaduct is a bridge composed of several small spans for crossing a valley or a gorge. The term viaduct is derived from the Latin via for road and ducere, to lead. However, the ancient Romans did not use the term; it is a modern derivation from an analogy with aqueduct. Like the Roman aqueducts, many early viaducts comprised a series of arches of...
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http://en.wikipedia.org/wiki/Viaduct

• (n.) A structure of considerable magnitude, usually with arches or supported on trestles, for carrying a road, as a railroad, high above the ground or water; a bridge; especially, one for crossing a valley or a gorge. Cf. Trestlework.
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http://thinkexist.com/dictionary/meaning/viaduct/

type of long bridge or series of bridges, usually supported by a series of arches or on spans between tall towers. The purpose of a viaduct is to ... [1 related articles]
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http://www.britannica.com/eb/a-z/v/19

Bridge designed to carry railways and waggonways over valleys at a single level.
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http://www.encyclo.co.uk/local/20766

(Learning Modules / Mathematics / Bridges) A road or rail bridge of considerable length, usually carrying vehicles at an elevated height across a valley or round a mountain side, as opposed to simply across a specific obstacle.
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A bridge which carried a road across a river or a valley.
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http://www.encyclo.co.uk/visitor-contributions.php
Vi`a·duct noun [ Latin
via a way +
- duct , as in
aqueduct : confer French
viaduc . See
Via , and
Aqueduct .] A structure of considerable magnitude, usually with arches or supported on trestles, for carrying a road, as a railroad, high above the ground or wat...
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http://www.encyclo.co.uk/webster/V/21

A viaduct is a bridge, of considerable height carrying a road or a railway etc over a road, river, valley etc. Viaducts are typically constructed of masonry and a series of arches.
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[
n] - bridge consisting of a series of arches supported by piers used to carry a road (or railroad) over a valley
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http://www.webdictionary.co.uk/definition.php?query=viaduct

viaduct An elevated structure, consisting of a series of arches or spans, by means of which a railway or road is carried over a valley, road, river, or marshy low-lying ground. 2. From Latin, via "way, road".
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http://www.wordinfo.info/words/index/info/view_unit/2295/4

a bridge comprised of a number of short spans that support aqueducts to deliver water from a higher point outside the city to the city, i.e., Rome, and neighboring villages.
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https://www.encyclo.co.uk/local/10135
noun bridge consisting of a series of arches supported by piers used to carry a road (or railroad) over a valley
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https://www.encyclo.co.uk/local/20974
No exact match found.