Facing new challenges in an election year, U.S. union tradeswomen attending a second annual conference in May in Sacramento reviewed anti-union measures on ballots across the U.S. and vowed to unite to slow attrition.The conference, co-sponsored by the AFL-CIO's Building and Construction Trades Dept. and the California State Building and Construction Trades Council (SBCTC), attracted women craft workers from 26 states and from abroad. With 100 fewer attendees than last year, 520 came to the 11th annual meeting for state tradeswomen.SBCTC spokeswoman Debra Chaplan, also a member of Teamsters' union Local 853, said women now make up just 2% of
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.