The scaffolding accident that killed three workers on an Austin high-rise apartment building has underscored what some local researchers and safety advocates believe are safety problems in the city’s construction sector. One week after an 11th floor scaffolding collapsed June 10 at a 21-story apartment tower, killing three workers, contractor Andres Construction, has resumed work on the $40-million structure, says the owner of the building. It is set to house students and faculty at the nearby University of Texas campus. Four men were working on a scaffold between the building�s 11th and 13th floors when part of it collapsed, says
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.