Federal prosecutors in Brooklyn, N.Y., announced two new arrests this month related to an ongoing probe of corruption on construction projects for New York City utility Consolidated Edison Corp. The investigation had led to charges filed in January against 10 current and former Con Ed construction officials who allegedly accepted $1 million in kickbacks from contractors, but the contractors were neither identified nor charged at the time. Now U.S. Attorney Benton J. Campbell has said the alleged corruption occurred in connection with work at Metropolitan Transit Authority and city Dept. of Environmental Protection jobsites where Con Ed was working. According
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.