The report "assessed the four-year trend in the condition of 12 categories of infrastructure, including roadways, bridges, drinking water systems, public parks, railroads and the power grid. The overall grade slipped from the D-plus given to the infrastructure in 2001 and 2003.
The report said $1.6 trillion should be spent over the next five years to alleviate potential problems with the nation's infrastructure. Transportation alone requires $94 billion in annual spending, the report said."
Thanks to Michael Dudley