Courtesy EPRI With its 110-volt vacuum engine, the crawler bot maintains enough suction to carry 40 lb up vertical structures. Courtesy EPRI The crawler bot automatically follows a preprogrammed route up and down structures but has support ropes in case it loses suction. Related Links: International Climbing Machines (Upon which the robot is based). Nuclear Energy Standards Coordination Collaborative A new concrete inspection robot successfully scaled the walls of a dam this summer, testing the dam's structural integrity.Many of the nation's 104 nuclear reactors are reaching the middle age of their design life, while, according to reports by the 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.