O&G Industries, the Torrington, Conn.-based general contractor on a Connecticut powerplant project where a fatal blast occurred in February during a natural gas venting operation, says it plans to contest penalties levied against it Aug. 5 by the U.S. Labor Dept.’s Occupational Safety and Health Administration. Photo: AP Wideworld Plant construction The firm was among three construction companies and 14 subcontractors that OSHA cited for numerous alleged workplace safety violations related to the Feb. 7 blast at the 620-MW Kleen Energy LLC plant in Middletown that killed six workers and injured 50 others. OSHA has proposed $16.6 million in penalties
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.