Search results
Results from the WOW.Com Content Network
The bridge may be stiffened by the addition of cables that do not bear the primary structural or live loads and so may be relatively light. These also add stability in wind. An example is the 220-meter-long (720 ft) bridge across the river Drac at Lac de Monteynard-Avignonet: this bridge has stabilizing cables below and to the side of the deck.
A swing bridge (or swing span bridge) is a movable bridge that can be rotated horizontally around a vertical axis. It has as its primary structural support a vertical locating pin and support ring, usually at or near to its center of gravity, about which the swing span (turning span) can then pivot horizontally as shown in the animated illustration to the right.
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 ...
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.
The center span between the two suspension towers is 1,380 feet (421 m) long, [16] [17] and the side spans between the suspension towers and the anchorages are each 700 feet (213 m) long. [16] The total length of the bridge is 2,780 feet (847 m), and the deck is 98 feet (30 m) wide. [16]
The tunnel is 76 feet (23 m) wide, 58 feet (18 m) high, and 540 feet (160 m) long. [15] It is the largest diameter transportation bore tunnel in the world. [ 22 ] The large amount of material that was excavated in boring the tunnel was used for a portion of the landfill over the shoals lying adjacent to Yerba Buena Island to its north, a ...
The bascule span of the bridge, which opens up southwards when required, [32] lies around 12 metres (39 ft) above water level during high tides, [33] with the space between the two main spans in the water being around 35 metres (115 ft) - safety features fitted to the span walls limit shipping with a maximum width of 32 metres (105 ft) to be ...
Including approaches, the Brooklyn Bridge is a total of 6,016 feet (1,834 m) long [2] [3] [4] when measured between the curbs at Park Row in Manhattan and Sands Street in Brooklyn. [4] A separate measurement of 5,989 feet (1,825 m) is sometimes given; this is the distance from the curb at Centre Street in Manhattan. [5] [6] [7]