General Design Memorandum, Gulfport Harbor, Mississippi. Design Memorandum Number 1. Appendix E. Thin-Layer Disposal

Abstract

This report presents the results of a one year monitoring program of the impacts associated with the thin-layer disposal of 50,000 cubic yards of new work dredged material in Mississippi Sound. The object of thin-layer disposal is two fold: (1) the placement of dredged material in open water in a layer 12 inches thick or less and (2) reduction of short term impacts to the aquatic ecosystem. Results of this monitoring program indicate that: (1) It is possible to control lift-thickness during open water disposal. (2) Recovery of benthos following a December disposal operation begins as early as 6-weeks post disposal abundances within the disposal area are similar to non-disposal areas. (3) Recruitment to the disposal area, following the December disposal, was mediated by adult migration, followed by spring larval settlement. (jhd)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1989
Accession Number
ADA223136

Entities

People

  • Susan I. Rees

Organizations

  • United States Army Corps of Engineers

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Human Systems

DTIC Thesaurus Topics

  • Fish
  • Fisheries
  • Medical Personnel

Readers

  • Aquatic Ecology
  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering