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A bascule bridge (also referred to as a drawbridge or a lifting bridge) is a moveable bridge with a counterweight that continuously balances a span, or leaf, throughout its upward swing to provide clearance for boat traffic. It may be single- or double-leafed.
A moveable bridge, or movable bridge, is a bridge that moves to allow passage for boats [1] or barges. [2] In American English, the term is synonymous with drawbridge , and the latter is the common term, but drawbridge can be limited to the narrower, historical definition used in some other forms of English, in which drawbridge refers to only a ...
The bridge had seen 34% more trips than planners had projected. [127] Conversely, 5.5 million fewer passengers and 700,000 fewer vehicles rode the Staten Island Ferry to Manhattan. [128] The Verrazano Bridge was the last project designed by Ammann, who had designed many of the other major crossings into and within New York City.
The base of the bridge will also be raised to 230 ft., which is a 45-foot increase to accommodate ship traffic. The roadway will still be two lanes wide going in each direction.
It is the only double-deck bridge with independent lifts in the world. [22] Murray Morgan Bridge – Steel lift bridge in Tacoma, Washington, notable for its height above water, sloping span, and overhead span to carry a water pipe; closed October 23, 2007.
The Bridge Authority is a member of the multi-state E-ZPass consortium, and introduced electronic toll collection in June 2019. [ 5 ] [ 6 ] No other ETC transponders are currently offered or accepted, although the Bridge Authority offers sales of transponders of Florida's SunPass for the convenience of Canadian travelers en route to Florida.
A vertical-lift bridge or just lift bridge is a type of movable bridge in which a span rises vertically while remaining parallel with the deck. The vertical lift offers several benefits over other movable bridges such as the bascule and swing-span bridges. Generally speaking, they cost less to build for longer moveable spans. [1]
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