With the economic slump battering tax receipts, state budgets remain in dire shape, and the pain may continue into fiscal year 2012, according to the National Governors Association and National Association of State Budget Officers. In that environment, it’s no surprise that states around the country are slicing spending. One sector in which construction firms are feeling the impact is transportation. + Image Related Links: Stimulus Was Just a 'Tickle' For Transportation Firms NGA and NASBO on Nov. 12 released preliminary findings from their next biannual Fiscal Survey of the States, due out Dec. 3. Scott D. Pattison, executive director
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.