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|direction_b=South |terminus_b= in Griffith |counties=Lake |previous_type=IN |previous_route=827 |next_type=IN |next_route=930 }} State Road 912 (SR 912), known along its entire length as Cline Avenue, is a freeway north of the combined Interstate 80/I-94/U.S. Highway 6 (I-80/I-94/US 6, Borman Expressway), and a local access road serving Griffith south of the Borman. The portion of Cline Avenue marked as SR 912 is long. On April 15, 1982, part of a ramp under construction collapsed during concrete pouring operations near the Indiana Harbor and Ship Canal, killing twelve highway workers and injuring eighteen more. In 1987, the state designated the route between US 12 and the Indiana Toll Road as the Highway Construction Workers Memorial Highway. On December 28, 2009, the Indiana Department of Transportation (INDOT) closed the elevated bridge portion of Cline Avenue between Calumet and Michigan avenues, a distance of nearly . Corrosion had severely weakened most elements of the bridge, including the bridge piers, concrete, beams and cables. The bridge has been torn down and will be replaced with a toll crossing. Similar cases of corrosion have been identified in other bridges across the country.〔 == Route description == The freeway runs east from exit 3 of the Indiana Toll Road past the Gary/Chicago International Airport, and then south, also having an interchange with Toll Road exit 10. This portion also serves several of the steel mills (many now owned by ArcelorMittal) and casinos in East Chicago and Gary, Indiana. The north–south portion between approximately US 20 and the Borman Expressway follows the border between Gary and Hammond, Indiana. South of the Borman Expressway, Cline Avenue becomes a four-lane divided highway. SR 912 extends south to Ridge Road (Business US 6). 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「Indiana State Road 912」の詳細全文を読む スポンサード リンク
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