原帖由 拒绝付钱1 于 2007-12-8 04:40 发表
12号这个叫什么桥 ?
看到过很多次了
Columbia River (Astoria) Bridge, Clatsop County, 1966
The Columbia River (Astoria) Bridge, also known as the Astoria-Megler Bridge is just over four miles long (21,474 feet), and is the longest bridge in Oregon. The main span is a 2,468-foot steel cantilever through truss, and is flanked by five steel deck trusses, one hundred forty 80-foot concrete deck girder spans, and, at the Washington end of the bridge, seven 350-foot steel through truss spans. The bridge was designed jointly by the Oregon and Washington state highway departments. Construction was begun in 1962, and completed in 1966.
连接美国华盛顿州和俄勒冈州的钢桁架桥,全长4.1英里,1966年建成。
[ 本帖最后由 清水明石 于 2007-12-23 19:14 编辑 ] |