After a slow start, the Dept. of Energy's stimulus act-funded program to weatherize hundreds of thousands of low-income homes has picked up steam, with more 300,000 homes upgraded. Related Links: ARRA Home Weatherization Program Ramps Up Homes Weatherized By State in November 2010 While all of the American Recovery and Reinvestment-funded program's nearly $5 billion has been awarded to states, less than $2.2 billion actually has been spent in the form of outlays. DOE Secretary Steven Chu announced on Jan. 19 that more than 300,000 low-income homes had been weatherized as of Nov. 30. The new total, which reflect reports
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.