ENR's weekly look at construction products and gadgets includes a single-body hydraulic breaker and a rugged portable chain vise for jobsites. Click on the slide show for more details. Manufacturers can send information on new products to ENR_Products@mcgraw-hill.com.
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.