Unemployment Still Shrinking The construction industry's jobless rate continues to decline, dipping to 8.6% in May from April's 9.4%, as the industry added 6,000 jobs. The federal Bureau of Labor Statistics' latest employment report, released on June 6, also showed that construction's jobless rate last month improved from its May 2013 level of 10.8%. Moreover, last month's rate was the best May since 2008, when it also was 8.6%. The industry's jobs results were mixed among its various sectors. The strongest segments were heavy-civil engineering construction and residential specialty-trade contractors, which each picked up 3,200 positions. The weakest were non-residential
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.