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The Mears Memorial Bridge is a truss bridge of the Alaska Railroad, completed in 1923. The bridge spans the Tanana River at Nenana and at , it is among the largest simple truss-type bridges in the world. ==History== The bridge’s namesake, Colonel Frederick Mears, was chairman and chief engineer of the Alaska Engineering Commission, the railroad’s builder and original operator. The bridge was the final link in the railroad, entering service in February 1923, a year after the rest of the line was finished. The AEC hired the Chicago firm of Ralph Modjeski and Angier to design the bridge, and the American Bridge Company to fabricate and erect it. When completed, this Pennsylvania through-truss bridge was the longest truss span in the United States and its territories. This bridge still ranks as the longest span of any kind in Alaska and the third-longest simple truss bridge in North America. The Juneau-Douglas Bridge main span across Gastineau Channel at Juneau ranks second at . President Warren G. Harding traveled to Alaska to drive the ceremonial golden spike at the north end of the bridge in July 1923. It was one of Harding’s last public appearances prior to his death. 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「Mears Memorial Bridge」の詳細全文を読む スポンサード リンク
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