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The Albertus L. Meyers Bridge (also known as the Eighth Street Bridge and unsigned as SR 2055)〔 is a reinforced concrete open-spandrel arch bridge located in Allentown, Pennsylvania in the United States. When opened for traffic on November 17, 1913, the Albertus L. Meyers Bridge, then known as the Eighth Street Bridge, was the longest and highest concrete bridge in the world.〔(【引用サイトリンク】title=Historical Allentown )〕 The bridge spans the Little Lehigh Creek, linking Allentown's center city with the city's South Side. The bridge has seventeen spans and is longer than the more massive Tunkhannock Viaduct of the same type. ==History== The Lehigh Valley Transit Company organized the Allentown Bridge Company in 1911 for the sole purpose of building the bridge. The bridge was designed by the engineering firm of B.H. Davis and built by McArthur Brothers of New York City. Costing in excess of $500,000, construction of the bridge required of concrete and 1.1 million pounds of metal reinforcing rods. The structure operated as a toll bridge from its November 17, 1913 opening until the 1950s, at which time the toll was five cents for an automobile. The Liberty Bell Line, Lehigh Valley Transit's electric street car line that went to Quakertown, Sellersville, Lansdale, Norristown and Philadelphia ran across the bridge until that interurban service made its last run on the evening of September 6, 1951. On the final return trip from Norristown, in the early morning hours of September 7, car #1006 did not cross the bridge again but went directly to Fairview carbarn, located some distance southwest of the bridge. All rail operations across the bridge ended when the company ceased street trolley service in 1953. The concrete standards that once supported the trolley wire are still standing on the bridge to this day. 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「Albertus L. Meyers Bridge」の詳細全文を読む スポンサード リンク
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