Six coastal states will receive nearly $500 million from the U.S. Interior Dept. to help them alleviate environmental impacts of oil-and-gas development, the agency said on April 20. Louisiana tops the list with $121 million, followed by Alaska at $37.5 million, Texas at $35.6 million, Mississippi at $23.8 million, Alabama at $19.7 million and California at $5 million. The agency will distribute the funds in fiscal 2009 and 2010, the final two years of the Coastal Impact Assistance Program, which Congress created in 2005 for states adjacent to oil-and-gas production on the Outer Continental Shelf. Lawmakers authorized the agency to
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.