The Indiana Dept. of Labor has issued six safety violations and fines of $77,500 to the University of Notre Dame relating to the investigation of a fatal scissor-lift accident last fall. According to the violations, the school had instructed untrained employees to go up in lifts in high winds, directly violating manufacturers' warnings and generally accepted work practice. On Oct. 27, one lift tipped over, killing 20-year-old student Declan Sullivan while he was videotaping football practice. The decision to use the lift in adverse weather conditions prompted a “knowing” citation, the most serious safety violation under Indiana law. The university
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.