Book Reviews: 03/03/2010 Reflections on Affirmative Action in Construction By Paul King271 pages; $25.99 Forty years ago, construction sites in Chicago were 98% white. Today, the number of blacks and minorities in the trades is well over 20%. Contracts set aside for minority participation are now commonplace, yet few minority professionals own businesses large enough to compete with old-line construction firms run largely by white men. This greatly troubles Paul King, a former painting contractor who, in 1969, helped lead the affirmative action movement in construction. With the support of Chicago street gangs (who look like Boy Scouts compared to modern
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.