A type of bascule bridge with an elevated pivot point around which the shore end rotates on a bearing when the span is raised, reducing friction in the operation of the bridge.
Origin
Late 19th century.
Definition of rolling lift bridge in US English:
rolling lift bridge
noun
A type of bascule bridge with an elevated pivot point around which the shore end rotates on a bearing when the span is raised, reducing friction in the operation of the bridge.