PREFACE , 



This report is published to provide coastal engineers, through the classification and 

 identification of some existing offshore structures, a means of comparison for the various 

 structures from the technical, environmental, and economical aspects in investigating the 

 feasibility of designing and constructing deepwater ports to accommodate deep-draft ocean 

 vessels. The work was carried out under the coastal construction research program of the 

 U.S. Army Coastal Engineering Research Center (CERC). 



Tlie report was prepared by Joseph Peraino, Burr L. Chase, Tomasz Plodowski, and 

 Lydon Amy, under CERC Contract No. DACW72-73-C-0011 with Raymond Technical 

 Facilities, Inc. 



The authors gratefully acknowledge the generous assistance and encouragement provided 

 by CERC personnel during preparation of this study. Also invaluable were the cooperation 

 and assistance furnished by the U.S. Army Engineer Districts, and the owners, engineers and 

 contractors who were contacted on many details of the study. 



Engineering data for a few offshore structures are incomplete and were unobtainable 

 from the sources contacted. It is hoped that users of this report can expand or update its 

 content by identifying or submitting data sheets on these or other offshore structures. 



Dr. J. Richard Weggel was the CERC contract monitor for the report, under the general 

 supervision of Mr. Robert A. Jachowski, Chief, Design Branch, Engineering Development 

 Division. 



Comments on this publication are invited. 



Approved for publication in accordance with Pubhc Law 166, 79^" Congress, approved 

 31 July 1945, as supplemented by Public Law 172, 88^'* Congress, approved 7 November 

 1963. 



JAMES L.TRAYERS 



Colonel, Corps of Engineers 

 Commander and Director 



