Related Links: Questions Raised About Crane Disassembly Process See the Dallas Morning News Story Bolts removed from a tower crane being disassembled may have led to a fatal crash at the University of Texas at Dallas, according to safety experts. The accident occurred at the $60-million Arts and Technology Building on July 7, killing two workers. Officials with the U.S. Occupational Safety and Health Administration are investigating.Photos published in local news reports show the tower lying across the building that was under construction, with two tower sections separated. At the time of the collapse, the jib already had been removed
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.