Even as U.K.-based oil giant BP remains in the U.S. government’s crosshairs for environmental damage resulting from the Deepwater Horizon drill-rig explosion that killed 11 workers April 20, it now faces record fines and new scrutiny over another fatal accident five years ago at a land-based company facility in Texas. Photo: Courtesy of U.S. Occupational Safety And Health Administration. Explosion in 2005 killed 15 contractor employees and injured 170 others at Texas City site. OSHA’s fine is the highest single penalty ever to be issued for a single event. Photo: Courtesy of U.S. Occupational Safety And Health Administration In addition
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.