My first workday at CityCenter—the Las Vegas Strip’s $8.6-billion mixed-use development, the country’s largest privately financed project—started last fall at the pitch- black hour of 6:30 a.m. I was nervous about my decision to shadow new construction hires during their safety training. Six workers had died on the project since 2007, sparking pickets and pressure that led to mandatory safety training. In the back of my mind was the fact that my brother-in-law, Darin, had suffered a near-fatal construction accident about a year earlier at another project and had returned to work at CityCenter. Now, months after my first day
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.