Sediment movement and dredging in Newark Nay, NJ

Thomas H. Wakeman, Alan F. Blumberg, Dov B. Kruger, Anne M. Fullerton

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

New York Harbor requires dredging to provide adequate navigable depths for commercial shipping. Newark Bay is a major center for maritime activities in the Harbor. Sediment enters Newark Bay from upstream tributaries and downstream channels connected to the open harbor. The recently deposited surficial and suspended sediments in Newark Bay are highly mobile. A well-calibrated and validated three-dimensional mathematical model was used to investigate the movement of these sediments. The numerical simulations predicted that most of the sediments, which are re-suspended from the tidal flats or channel bottoms due to wind or tidal action, are being retained in Newark Bay proper and the lower reaches of the Passaic and Hackensack Rivers. The calculations indicated that bottom sediments can be eroded by flood currents and thereafter tend to resettle in the deepened navigation channels. The accumulated material is approximately equal in mass to the mass removed by the routine maintenance dredging. These sediments have been determined to be unsuitable for ocean placement because of contamination. Dredging has removed a substantial amount of contaminated sediment from the marine environment and placed it in confined sites or used it beneficially on land. Copyright ASCE 2007.

Original languageEnglish (US)
Title of host publicationPorts 2007
Subtitle of host publication30 Years of Sharing Ideas 1977-2007; Proceedings of the Eleventh Triennial International Conference
Pages26
Number of pages1
DOIs
StatePublished - 2007
Externally publishedYes
EventPorts 2007: 30 Years of Sharing Ideas 1977-2007 - San Diego, CA, United States
Duration: Mar 25 2007Mar 28 2007

Publication series

NamePorts 2007: 30 Years of Sharing Ideas 1977-2007; Proceedings of the Eleventh Triennial International Conference

Conference

ConferencePorts 2007: 30 Years of Sharing Ideas 1977-2007
Country/TerritoryUnited States
CitySan Diego, CA
Period3/25/073/28/07

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Mechanical Engineering
  • Ocean Engineering

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