The National Labor Relations Board has ruled that the posting of stationary banners by members of a construction union at a secondary employer’s workplace does not violate the nation’s labor laws. Photo: Pacific Northwest Regional Council of Carpenters Related Links: National Labor Relations Board Ruling Knoxville Carpenters Protest Drywall Contractor Carpenters Target Businesses in Tulsa with Banners Pacific Northwest carpenters’ council website The 3-2 decision, split along party lines, is one of the first major rulings on a controversial issue from the board’s new roster of members. Organized labor considers the case a significant victory. The board has at least
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.