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Old Vicksburg Bridge : ウィキペディア英語版 | Old Vicksburg Bridge
The Old Vicksburg Bridge, also known as Mississippi River Bridge, is a cantilever bridge carrying one rail line across the Mississippi River between Delta, Louisiana and Vicksburg, Mississippi. ==History== Until 1998, the bridge was open to motor vehicles and carried US 80 across the Mississippi River, though one road lane runs through the bridge for inspection by workers. It was replaced by the new Vicksburg Bridge, a short distance down river, for vehicle crossings. It was listed on the National Register of Historic Places in 1989.〔 During the period when the bridge was open to regular traffic a rather unique system was used to handle the tractor-trailer truck traffic which used the bridge. Located at each end of the bridge, there were a pair of railroad styled signal towers, which required trucks to stop. Once stopped, the towers would close off traffic for all vehicles in both directions, and then allow trucks to cross the bridge alone, using the full width of both of the narrow lanes, as opposed to staying in just one lane. Due to numerous safety concerns, crossings by trucks were limited to day time only operation, with trucks being required to wait until dawn before being allowed on the bridge.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Old Vicksburg Bridge」の詳細全文を読む
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