New product announcements: 01/28/2009 Hydraulic Concrete Chain Saw: Deeper Cuts Save Time The 880F4 Saw is a hydraulically driven chain saw for heavy-duty cutting applications, including concrete, masonry and stone. The saw can cut up to 25-in. deep, allowing faster cutting. It also can make square corner cuts, reducing the need for overcutting and extra patchwork later. The saw is available in 8-gpm and 12-gpm hydraulic-oil-flow variants. ICS, Blout Inc.; 800-321-1240; www.icsbestway.com Concrete Mudsill Anchor: No More Anchor-Bolt Patching and Adjustments The MASA Mudsill Anchor is an alternative to the more traditional anchor bolts used in concrete in framing applications.
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.