翻訳と辞書 Words near each other ・ Beard oil ・ Beard Papa's ・ Beard Peak ・ Beard tax ・ Beard v. Banks ・ Beard v. Kindler ・ Beard's Bluff ・ Beard's Roman Women ・ Beard, Australian Capital Territory ・ Beard, Indiana ・ Bear River (Washington) ・ Bear River 6 ・ Bear River 6A ・ Bear River 6B ・ Bear River Band of the Rohnerville Rancheria ・ Bear River Bridge ・ Bear River City, Utah ・ Bear River City, Wyoming ・ Bear River Dam ・ Bear River dikes ・ Bear River Expedition ・ Bear River First Nation ・ Bear River High School ・ Bear River Massacre ・ Bear River Massacre Site ・ Bear River Migratory Bird Refuge ・ Bear River Mountains ・ Bear River National Forest ・ Bear River Pines, California ・ Bear River State Park Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Bear River Bridge ： ウィキペディア英語版 Bear River Bridge The Bear River Bridge is located in Nevada County in the U.S. state of California. In its time, it was the highest railway bridge in the state. The railway cantilever bridge spans the Bear River. ==History== It was built on the line of the Nevada County Narrow Gauge Railroad. From the surface of the water, at an average stage, up to the track is . The total length is about , and at the time of construction there were no approaches, the opposite banks being abrupt. The pier foundations were built of reinforced concrete, requiring more than 500 cubic yards. The piers and superstructure are of structural steel, of which about 500 tons were used. All the steel material was furnished by the American Bridge Company of San Francisco, and the constructing contractors were Shattuck & Edinger Construction Company, also of San Francisco. The total cost of the bridge was approximately US$70,000. The engineering involved much difficulty—principally due to the unusual height of the structure. At the beginning of the work the contractors stretched a 2.25 inch diameter steel cable from bank to bank more than above the Bear River, and long. By means of this cable all of the structural steel material required, as well as the concrete, were hoisted and conveyed by a trolley to the required point and lowered to the proper position. It took about six months to complete construction. Only a small force of men were employed and the work necessarily progressed rather slowly. This railway bridge is on a long cut-off which shortens the road , and also eliminates two long wooden bridges, each high, and one tunnel. The total outlay to the Nevada County Narrow Gauge Railroad Company (including the steel bridge) for these Improvements reached nearly US$140,000. 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「Bear River Bridge」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.