放出三月份的答案了。
The March Bridge was the Astoria-Megler Bridge connecting Oregon and Washington across the Columbia River at Astoria, Oregon. In spite of the shortened contest, there were lots of correct answers and the lucky winner was Jerry Bruck of Clearfield, Pennsylvania.
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.
又称阿斯特拉-梅格勒大桥,全长21474英尺(将近4英里),是美国俄勒冈州最长的桥.
有主跨度2468英尺悬臂式钢桁架,其两侧五个钢制桥面桁架.140个80英尺混凝土桥墩,在华盛顿州的尾段有7个跨度350英尺的钢桁架.
大桥由俄勒冈州和华盛顿州公路部门联合设计,工程始于1962年,落成于1966年.
以此结束了从1840年开始的轮渡摆渡和从上游才能渡过哥伦比亚河的历史.
[ 本帖最后由 清水明石 于 2008-3-31 22:19 编辑 ] |