lifting span
nounDefinitions
A span of a bridge that can be raised to allow boats and ships through
A span of a bridge that can be raised to allow boats and ships through; these can have different forms.
- The vertical lifting span is raised on four reinforced concrete piers which are some 130 ft. high. […] The lifting span, which rises vertically between the towers, weighs 465 tons and is counterweighted by four 110-ton weights.
The neighborhood
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sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA