Landfill saves at least 30% on debris removal by renting equipment and hiring temporary operators.
Concrete overlays help explain why only 9% of Virginia's bridges are deemed structurally deficient.
Techniques to maximize air space and select the right landfill compactor.
Few modern-day structures match the grandeur or complexity of the Hoover Dam. The American Society of Civil Engineers, Reston, Va., rates it as one of America's seven modern civil engineering wonders. Standing 724 feet tall and 660 feet at its widest poin
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