PREFACE 



This study was conducted by the Coastal Engineering Research Center 

 (CERC) , US Army Engineer Waterways Experiment Station (WES). The work 

 described herein was authorized as a part of the Crescent City Prototype Dolos 

 Study, CERC. Messrs. John H. Lockhart, Jr. and Jesse Pfeiffer are Technical 

 Monitors for Headquarters , US Army Corps of Engineers . 



The Crescent City Dolos Structural Design Procedure Development was a 

 task under the Crescent City Prototype Dolos Study, which was directly managed 

 by Mr. Gary Howell, Prototype Measurement and Analysis Branch (PMAB) , Engi- 

 neering Development Division (EDD) , CERC. The design development task study 

 was performed and the report prepared over the period 1 October 1987 through 

 30 August 1990 by Jeffrey A. Melby, within the PMAB, from 1 October 1987 to 

 1 October 1989 and within the Wave Research Branch (WRB) , Wave Dynamics 

 Division (WDD) , CERC from 1 October 1989 to 30 August 1990. 



This report was reviewed, edited, and published under Civil Works 

 Research Work Unit 32536, "Concrete Armor Unit Design," Coastal R&D Program, 

 authorized by the USACE. The HQUSACE Technical Monitors were Messrs. John H. 

 Lockhart, Jr.; John G. Housley; Barry W. Holliday; and David A. Roellig. 

 Ms. Carolyn M. Holmes was the CERC Program Manager. 



The research effort was conducted under the general administrative 

 supervision of Dr. James R. Houston, Director, CERC, Mr. Charles C. Calhoun, 

 Jr., Assistant Director, CERC, Mr. Gene Chatham, Chief, WDD, Mr. D.D. 

 Davidson, Chief, WRB, Mr. Thomas Richardson, Chief, EDD, and Mr. William 

 Preslan, Chief, PMAB. 



The author gratefully acknowledges the dedicated efforts of the 

 following people who helped during the study: Mr. Gary Howell, Dr. Steven 

 Hughes, Mr. Thomas Kendall, Mr. Dennis Markle , Mr. D.D. Davidson, all with 

 WES, Dr. Hans Burcharth, Prof. Leon Borgman, Prof. William McDougal , and 

 Dr. Joseph Tedesco. 



At the time of publication of this report, Director of WES was 

 Dr. Robert W. Whalin. WES Commander was COL Leonard G. Hassell, EN. 



