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Milton–Madison Bridge
The Milton–Madison Bridge (also known as the Harrison Street Bridge) is a continuous truss bridge that connects Milton, Kentucky and Madison, Indiana. It carries approximately 10,000 cars a day. The old structure was replaced with a completely new continuous truss which was constructed on temporary piers adjacent to the operational span between 2011 and 2012 and slid into place after demolition of the old span using a construction method called "truss sliding."〔(【引用サイトリンク】title=Milton–Madison bridge project milestones )〕 The new crossing opened to vehicle traffic in April 2014, and a pedestrian sidewalk opened that October.
==Description==
This two lane vehicular bridge is the Ohio River crossing for U.S. Route 421. The bridge has a main span of and total length of . The original bridge had a deck width of a mere , and above the deck the vertical clearance was . The new bridge has a -wide road bed, plus a cantilevered pedestrian-only path. Bicyclists are banned from the sidewalk, but may use the new bridge's shoulders.〔 This bridge is the only vehicular crossing of the Ohio River for going upstream (the Markland Bridge near Vevay, Indiana) and downstream (the John F. Kennedy Memorial Bridge in Louisville).
The bridge provides the shortest distance between Indianapolis, Indiana and Lexington, Kentucky.〔(【引用サイトリンク】title=The Story of the Splendid Milton–Madison Bridge )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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