The construction industry in Washington state is not ready to meet a new rule that will require some 10,000 cranes there to be inspected and certified by a licensed inspector by Jan. 1. Photo: Teqne New rules will soon hit Washington cranes, such as this one that was shut down last year for alleged deficiencies. The crane's owner has since settled with the state. Related Links: Crane Anxiety Towers From Coast to Coast California Enforces Standardized Testing Partial Settlement Announced For 2006 Fatal Crane Collapse Crane Failures Foul Up Texas' Already-Poor Safety Record "Crane operators have been busy," says Hector
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.