Courtesy of Inland Kenworth A piece of heavy equipment loads a large dump truck. Large construction trucks will be required to cut fuel economy 10% by 2018 to meet new federal greenhouse-gas rules. Related Links: First Fuel-Economy Standards Hit Construction Trucks The Flip Side of Fuel Economy: Less Cash for Road Construction Heavy Truckers Say Goodbye to the Stick While construction industry leaders aren’t objecting to the new efficiency standards for medium- and heavy-duty vehicles that were announced on Aug. 9, they are not pleased with the likely long-term repercussions of the standards.“It's probably a good thing," explains Brian Deery,
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.