The Dept. of Energy has awarded $452 million in American Recovery and Reinvestment Act grants to states and localities to help fund energy-efficiency upgrades to buildings. In announcing the “Retrofit Ramp-Up” grants on April 21, DOE said the federal funding will be complemented by $2.8 billion from non-federal sources over three years. DOE received more than $3.5 billion in applications, far more than the amount it had available. The largest of the 25 grants was $40 million, to the New York State Research and Development Authority. Maine, Michigan and Los Angeles County, Calif., each were awarded $30 million. DOE says
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.