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This is a list of tallest freestanding steel structures in the world past and present. To be a freestanding steel structure it must not be supported by guy wires, the list therefore does not include guyed masts and the main vertical and lateral structural elements and floor systems in the case of buildings, are constructed from steel.
indicates a structure that is no longer standing. For all structures the pinnacle height is given, so the height of skyscrapers may be different from the values at List of tallest buildings in the world. Structures under construction are included in the main list if their current height is over 350 metres (1,148 ft). #
This list of tallest bridges includes bridges with a structural height of at least 200 metres (660 ft). The structural height of a bridge is the maximum vertical distance from the uppermost part of a bridge, such as the top of a bridge tower, to the lowermost exposed part of the bridge, where its piers, towers, or mast pylons emerge from the surface of the ground or water.
The Tyngsborough Bridge is a steel tied-arch bridge located in Tyngsborough, Massachusetts and carries Route 113 over the Merrimack River. With a span of 547 feet, it has the longest span of any steel rib through arch bridges in Massachusetts. It is also the 2nd oldest steel rib through arch bridge in the state.
The Troitsky Bridge Building Competition is an annual event that takes place at Concordia University in Montreal, Quebec, Canada in the spring. Participating teams of engineering students come from universities across Canada and the United States. They design and build model bridges out of popsicle sticks, toothpicks, white glue and dental floss.
A $3 million project will replace the state Route 54 bridge over Willow Grove Creek in the Yates County town of Milo with a steel girder bridge expected to last 75 years.
The Braga Bridge is a continuous truss bridge. It was the fourth longest span of this type when it was completed in 1966. This list of continuous bridge spans ranks the world's continuous truss bridges in two listings: The first is ranked by the length of main span (the longest length of unsupported roadway) and the second by the total length of continuous truss spans.
The Morandi bridge in Italy’s port city of Genoa collapsed in August 2018 after heavy rainfall, killing 43 people.. When one of its main pylons fell mid-morning, it brought a section of road ...