Photo by David Sailors NJDOT decided to shut down northbound lanes completely so the contractor can go in and replace the 3.5-mile deck within two years as part of a 10-year, $1-billion rehabilitation program. Related Links: Rival Bidder on New Jersey Highway Rehab Eyes Winner's China Tie | N.J. Gov. Christie Details Decision on ARC Tunnel Project Contractor crews bolted from the starting gate in mid-April, commencing a two-year marathon effort to replace three miles' worth of the Pulaski Skyway northbound deck. About a month after the lanes were completely closed, on April 12, project officials say "Autogeddon" has been
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.