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But, to deepen the port meant dealing with a great deal of dredged material, some of which would be contaminated. INNOVATIVE IDEAS; VIABLE SOLUTIONS In 1997 the Port Authority of New York/New Jersey came up with the idea of creating the Newark Bay CDF in Newark Bay to contain the contaminated dredged material. ?A CDF was a good option because it would be near the port activity and because CDF?s have been shown to be successful throughout the nation and world,? said Christopher Mallery, chief, Western Section of the Regulatory Branch, U.S. Army Corps of Engineers, New York District. The Army Corps performed an extensive review of the Port Authority?s plan and provided them a permit to perform the work. It was believed the CDF would be lled within ve years, but after the CDF was created the agencies continued to work collaboratively and came up with additional methods for dealing with contaminated dredged materials. As a result, less mud had to be placed in the CDF, extending its life for over a decade. Agencies started to see dredged materials as less of a burden and more of an asset. They began using it for bene cial reuse that included using some to remediate upland brown elds and land lls. In the meantime, the CDF continued to provide a valuable safety net for materials too contaminated to be used for bene cial uses. ?This summer the CDF was closed by capping it securely with several feet of sand that was sprayed on top of the pit opening. The bay is naturally lled with clay sediment that will also help secure the pit and prevent any leakage of mud,? said Mallery, who was instrumental in working with the team on the closing process. LEFT Steve Kalil, President of Caddell Dry Dock & Repair Co. on wing wall of a dry dock. Credit: Michael Falco. RIGHT Tugboat in a dry dock for hull painting and propeller work at Caddell Dry Dock & Repair Co. Photo credit: Michael Falco "The successful closing of this CDF opens up possibilities for the port's future. The CDF proved to be an innovative, economically efÞ cient and safe way to store contaminated dredged material in one of the largest metropolitan regions in the country." ? Joseph See- bode, deputy district engineer for the U.S. Army Corps of Engineers, New York District Photo credit: Caddell Dry Dock November 201262 MNMNNov2012 Layout 50-65.indd 62MNNov2012 Layout 50-65.indd 6211/7/2012 11:44:59 AM11/7/2012 11:44:59 AM
