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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Big Walker Mountain Tunnel ： ウィキペディア英語版 Big Walker Mountain Tunnel The Big Walker Mountain Tunnel is a vehicular tunnel in the Appalachian Mountains of Southwest Virginia that carries Interstate 77 through/under Big Walker Mountain. It is located at , a few miles south of the town of Bland and a segment of the Appalachian Trail, and about 20 miles (32 km) south of its longer cousin, the East River Mountain Tunnel. ==History== The 4,229-foot (1,288 m) tunnel was first opened in 1972 after five years of construction labor. It carried a price tag of $50 million, which at the time was the most expensive single project undertaken on Virginia's interstate system.() The opening of the tunnel reduced the travel time from Wytheville to Bland County by 30 minutes.() Preliminary engineering studies for the project were made by Brokenborough & Watkins, consulting engineers of Richmond, Virginia, and the final design of the roadway and tunnel was by Singstad & Kehart, consulting engineers of New York City. The tunnel approaches and surrounding area can be viewed from the Big Walker Lookout, a 100-foot observation tower built on a nearby peak. 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「Big Walker Mountain Tunnel」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.