More than half of the members of a presidential commission have endorsed an aggressive deficit-cutting blueprint that includes a proposed 15¢-per-gallon boost in the federal gasoline tax. Eleven of 18 National Commission on Fiscal Responsibility and Reform members voted for the wide-ranging plan, but that was three votes short of the 14-member supermajority needed for formal approval. Still, commission members who gathered on Dec. 3 in a Senate hearing room for the voting session were optimistic that the plan, contained in a final report titled “The Moment of Truth,” would have an impact on future federal budget debates. One panel
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.