Democrats in both chambers of Congress are hoping to pass a bill the week of May 21 they say would create jobs and extend expiring tax benefits. The bill would extend unemployment insurance and Consolidation Omnibus Budget Reconciliation Act (COBRA) benefits through Dec. 31 and would attempt to provide tax relief to businesses and state and local governments to help spur investment and create jobs. It includes a one-year extension of the Research and Development tax credit for businesses and would extend the Build American Bond program to spur infrastructure development through 2012. The price tag would be $141 billion,
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.