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The Antietam Avenue Bridge was located where Antietam Avenue passed over the Dequindre Cut (formerly owned by the Grand Trunk Western Railroad) in Detroit, Michigan. It has been demolished due to structural deficiencies and will be reconstructed.〔(Report for RTP project ID 1627 ), Southeast Michigan Council of Governments〕 The original bridge was listed on the National Register of Historic Places in 2000.〔 ==History== By the 1920s, there were over 400 industries operating on Detroit's east side. However, the combination of the city's haphazard streetplan, the expansion of large factories, and the substantial network of rail tracks conspired to slow traffic within the city, particularly in the east-west direction.〔(Antietam / Grand Trunk Railroad ), Michigan Department of Transportation〕 In 1923, the city of Detroit and Grand Trunk Western Railroad began a plan to build 22 grade separations; both parties agreed to share the cost.〔 One of the tracks to be regraded was the line paralleling St. Aubin. These tracks ran from the northwest, where they connected with a network of other lines, to the southeast, where the tracks turned to parallel the river and supplied a number of large factories, including the Detroit-Michigan Stove Plant, the United States Rubber Company Plant, and the Parke-Davis Laboratories. The tracks terminated at the Brush Street Depot in downtown Detroit.〔 By March 1930, sixteen of the crossings of what now is known as the "Dequindre Cut" were finished, including the nearby Chestnut Street Bridge.〔(Chestnut / Grand Trunk Railroad ), Michigan Department of Transportation〕 The bridge at Antietam Avenue was completed soon thereafter. In 1964, the Antietam Avenue Bridge and the Chestnut Street Bridge were teamed as a one-way pair.〔 In the 1980s, the railway was abandoned,〔(Walter Wasacz, ) "Dequindre Cut: The Missing Link," Model D〕 and ownership changed hands.〔(Trail Development Assistance Response Team ), GreenWays Initiative: Planning for Detroit's Rail-Trails. Abandoned Rail Corridor Inventory and Assessment, Final Report, October 2002, pp. 25-30〕 As of 2008, the Dequindre Cut is being turned into a rail trail.〔 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「Antietam Avenue Bridge」の詳細全文を読む スポンサード リンク
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