The world's first diesel-electric hybrid bulldozer will carry a price tag that is about $100,000 more, or 20% higher, than a comparable non-hybrid machine. But will pay for itself in about two-and-a-half years, Caterpillar Inc. managers said June 23 at the company's training facility in Edwards, Ill. Photo: Tudor Van Hampton Hybrid dozer comes with a 20% price premium. Related Links: LeTourneau's Electric Legacy Haunts Las Vegas Mega-Show VIDEO: Big Electric Cat � Bulldozer Buzz at CONEXPO The D7E, which begins production in October, will come with a manufacturer-recommended list price of $600,000, said David E. Nicoll, product execution manager.
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.