The eastern half of the Hood Canal Bridge opened on June 3, eight days ahead of a schedule that was revised after a 15-month delay in 2005. Crews finished installing 17 pontoons for the 1.5-mile state Route 104 crossing. The world’s longest floating bridge over salt water links Washington state’s Olympic and Kitsap peninsulas about 60 miles north of Seattle. Photo: Kiewit-General Trusses are designed to withstand rough winds. Kiewit-General Construction Co., Poulsbo, Wash., earned a $600,000 bonus for the early opening. The $490-million project took six years, due in part to a 15-month delay after an ancient Native American
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.