As expected, the Dept. of Justice filed a civil lawsuit against BP and eight other companies involved in the Deepwater Horizon oil spill on Dec. 15 in the U.S. District Court in New Orleans. A ruling against the companies could mean billions of dollars for environmental cleanup and restoration work for contractors. In the complaint, the U.S. government alleges violations of federal safety and operational regulations that caused or contributed to the oil spill. The lawsuit seeks civil penalties against eight of the firms under the Clean Water Act and damages “without limitation” under the Oil Pollution act for all
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.