UNCLASSIFIED 



Security Classification 



DOCUMENT CONTROL DATA -R&D 



(Security classification ot title, body ot abstract and Indexing annotation must be entered when the 



all report Is clasellled) 



J. ORIGINATING AC.TIV1TY (Corporate author) 



Department or the Army 

 Coastal Engineering Research Center 

 5201 Little Falls Road, N.W. 

 Washington. D.C. 20016 



'l0fiCLA!&5'FW Y CLASS ' F ' CAT " 



2b. GROUP 



EPORT TITLE 



ECOLOGICAL EFFECTS OF OFFSHORE DREDGING AND BEACH NOURISHMENT: A REVIEW 



DESCRIPTIVE NOTES (Type ol report and Inclusive dates) 



5. au THORIS) (First nemo, middle Initial, taat name) 



John R. Thompson 



6. REPORT DATE 



January 1973 



7a, TOTAL NO. OF PAGES 



48 



7b. NO. OF REFS 



196 



8a. CONTRACT OR GRANT NO. 



b, PROJECT NO. 



»a. ORIGINATOR'S REPORT NUIVTBER(S) 



Miscellaneous Paper No. 1-73 



DISTRIBUTION STATEMENT 



Approved for public release; distribution unlimited. 



SUPPLEMENTARY NOTES 



12. SPONSORING MILITARY ACTIVITY 



Department of the Army 

 Coastal Engineering Research Center 

 5201 Little Falls Road, N.W. 

 Washington, D.C. 20016 



A review of ecological effects of offshore dredging is presented, based on literature 

 review and personal contacts, to provide a framework for determination of need for 

 further knowledge. In general, little concrete effort aimed specifically at the 

 determination of effects of offshore dredging was uncovered, although basic ecological 

 works that are generally applicable are available. Much additional research of basic, 

 but practical, orientation is needed to approach full understanding. 



Report shows that the beach may be divided into three zones on the basis of moisture 

 and biota found, and describes the possible effects on these biota resulting from 

 offshore dredging and deposition of sediments on a beach. 



Background descriptive material and impacts on both offshore dredged areas and 

 nourished beaches, and suggestions for further research follow. A selected bibliography 

 Ls included. 



DD 



.1473 



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