At the end of each year, I receive a new calendar from Hoffman Construction Co., Portland, Oregon. It features simple pictures drawn by employees’ young children depicting how to work safely on construction sites. The calendar is a terrific way to communicate how the ramifications of safety and health practices extend beyond jobsites, projects and companies to families and future generations of workers. GAMBATESE Sustainability principles incorporate a similar perspective on the value of life. The World Commission on Environment and Development describes sustainable development as a project approach that “meets the needs of the present without compromising the ability
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.