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The main span is the longest span without any ground support. Note : There is no standard way to measure the total length of a bridge. Some bridges are measured from the beginning of the entrance ramp to the end of the exit ramp.
The world's longest suspension bridges are listed according to the length of their main span (i.e., the length of suspended roadway between the bridge's towers). The length of the main span is the most common method of comparing the sizes of suspension bridges, often correlating with the height of the towers and the engineering complexity involved in designing and constructing the bridge. [4]
Span Length Type Carries Crosses Opened Location State Ref. 1: Verrazzano-Narrows Bridge: 1,298 m (4,260 ft) 4,176 m (13,701 ft) Suspension 2 levels steel truss deck, steel pylons 7+6 lanes 370+1298+370
The World's Greatest Bridges, Archive.org copy of The Bridge over the Strait of Messina website (out of date and other errors) List of longest spans, Pub Quiz Help (includes bridges that have not yet been completed) Steel bridges in the world, and other bridge statistics, The Swedish Institute of Steel Construction, March 2003 (out of date)
W. H. Code of the Midland Bridge Company was the designer. The suspension design was chosen to address the steep-walled canyon at the crossing, which required a single span with no temporary falsework. [2] When built, the Cameron bridge was the longest suspension span west of the Mississippi River. [3]
The bridge is continuous across two 775-foot-long (236 m) spans, [2] and is considered an engineering marvel. It held the record for longest continuous truss span in the world from its opening until 1945.
This list of the longest arch bridge spans ranks the world's arch bridges by the length of their main span. The length of the main span is the most common way to rank bridges as it usually correlates with the engineering complexity involved in designing and constructing the bridge. [ 1 ]
Its predecessor was constructed of wood by Wallace D. Lovell and was referred to as the Mile-Long Wooden Bridge. For a time in the early 1900s, Hampton Bridge earned the title of longest bridge in the United States. The completion of the old bridge took almost a year and according to the Exeter Newsletter of July 5, 1901, was a "great ...