According to the Federal Bureau of Labor and Statistics the construction industry has one of the highest occupational injury rates. What makes the situation worse is that the Social Security Administration notes that disability costs related to these injuries are projected to increase 37% this decade due to an aging workforce. This lost time due to injury/illness impacts both direct and indirect disability costs and that may lead to a variety of issues including a decrease in employee morale, increased litigation, and increased medical and lost time costs. It may also lead to an increased experience modification rate. So what
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.