Courtesy Southern Nevada Water Authority A view of the Lake Mead intake tunnel for which the owner held a builder's risk policy. Six re-insurers will pay out most of an additional $35 million under a claim by the Southern Nevada Water Authority on a builders’ risk policy covering damage suffered in 2010 and 2011 to a water tunnel project where flooding and fractured rock caused major delays, the water authority announced.“We don't typically purchase insurance policies for construction projects,” says Erika P. Moonin, the water authority’s engineering project manager for its $817-million third intake project at Lake Mead. “But this
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.