Products 03/16/2011 Vocational Truck: Many Configurations The Class 8 Western Star 4700 truck is available with set-forward and set-back axle options and features a 110-in. bumper-to-back-of-cab distance. Depending on the job, the truck has a range of powertrain options, including a 350-hp to 450-hp Detroit Diesel DD13 engine with BlueTec selective catalytic reduction. The truck can be configured for dump, mixer, crane or roll-off applications. Western Star; 866-850-7827; www.westernstar.com Modular Platform Needs No Ground Support Safway has received a patent for QuikDeck, a modular platform system that can be used in places where ground-based scaffolding is impractical. It can support
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.