Strait of Messina Bridge have made the span more than 60% longer than the Akashi-Kaikyo Bridge in Japan—the largest suspension bridge in the world at . Plans called for four traffic lanes (two driving lanes and one emergency lane in each direction), two railway tracks and two pedestrian lanes. In order to provide a minimum vertical clearance for navigation of , the height of the two towers was to be . This would have been taller than the Millau Viaduct in France (currently the tallest bridge in the world at ). The bridge's suspension system would have relied on two pairs of steel cables,
Monocacy River bridge and viaduct was in the river in 1995. Currently, the Department of Transportation, Maryland Transit Administration (MTA), (2001-) owns and maintains the bridge. <br>In 2015, MTA performed additional maintenance on the spans and painted two of the four spans as well. Monocacy River bridge and viaduct The Monocacy river bridge and viaduct is a open deck steel girder bridge with two main spans crossing the river and 2 viaduct sections crossing the floodplain, south of Walkersville, Maryland. Originally constructed by the Frederick and Pennsylvania Line Railroad Company (F&PL). Construction began in late 1871, and continued until July 1872 when the railroad opened