In May, the dollar value of total construction starts rose 3%, according to McGraw-Hill Construction’s latest report on construction activity. Soruce: McGraw-Hill Construction Analytics. ConstructionContract Value Cumulative Year-to-Date Through May 2010 Three percent may not be a remarkable number, but it is notable that most of the gain came in the previously moribund non-residential building market. The sector rose 19% from the previous month but is now down 16% from the five-month cumulative total of last year. Those percentages are an improvement over the 18% year-to-year decline recorded during the previous month. “The good news with May statistics is that
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.