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World’s Top 10 Most Expensive Civil Construction Project in History world's 10 most expensive civil engineering project In this video we will take a look on world’s 10 most expensive engineering projects. For More Information About Successful Engineering Project  Please Subscribe My Chanel   Civil Engineer 9 . Description For 10 Expensive Civil Engineering Project 1.        Bruj Khalifa This 828 meters Skyscraper in Dubai is Considered as the tallest building in the whole world The construction began in 2004 and finished in 2010 The total cost was $1.5 Billion 2.        Chicago Spire in Chicago The project was abandoned in 2008 after completing it’s foundation work due to financial challenges And this image is only an impression of how to would look like The expected cost for this project was approximately $750 Million 3.        Taipei 101 This is also known as Taipei financial center Construction began in 1999 and finished in 2004 with

Definition: Arch is a mechanical arrangement of wedge shaped blocks mutually supporting each other forming an opening and resting on tow ends over columns or walls. - A curved symmetrical structure spanning an opening and typically supported the weight of a bridge, roof or wall above it. Technical Terms of an Arch: i.                      Voussoirs ii.                    Skew back iii.                   Soffit iv.                  Key stone v.                    Intrados vi.                  Extrados vii.                 Back viii.               Crown ix.                  Spandril x.                    Springing line xi.                  Arch ring xii.                 Pier xiii.               Springing point xiv.               Springer xv.                Abutment xvi.               Hunch xvii.             Span xviii.            Rise xix.               Depth or height. Types of Arches: A.       According to Shape B.       According