A three-year-long federal investigation of alleged overbilling on reconstruction contracts in Afghanistan by engineer Louis Berger Group appears likely to force Derish M. Wolff, chairman of the firm’s holding company, from his job, according to court documents filed last week. Photo: Michael Goodman For ENR Wolff’s terms of departure from the company are controversial. The company is trying to resolve Wolff’s status as chairman of Berger Group Holdings, it said a statement released on August 16. “We anticipate that the matter of his employment to be resolved by the end of next week,” the company said. Contacted at his New
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.