Construction's unemployment rate rose in January, to 22.5% from December's 20.7%, partly reflecting the industry's usual winter slowdown, but was improved from January 2010's 24.7% rate. Related Links: Read the Employment Report The Bureau of Labor Statistics' latest monthly employment snapshot, released on Feb. 4, also shows that construction lost 32,000 jobs in January, on a seasonally adjusted basis. About two-thirds of those losses came in the nonresidential specialty trade contractors segment. BLS said another possible factor contributing to construction's January job losses was the severe weather in parts of the U.S. last month. One encouraging sign in the latest
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.