Photo By Bruce Buckley Building-trades President Sean McGarvey gives his first major union address since taking over after the sudden death of his predecessor on April 8. Photo By Bruce Buckley President Obama told union members that Congress should pass transportation funding legislation "right away." Job creation in an election year was the top priority for speakers and attendees at the construction unions' annual legislative conference in Washington, D.C., on April 30. Members of the AFL-CIO's Building and Construction Trades Dept. looked for signs of optimism not just from keynote speaker President Obama but also from newly elected President Sean
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.