PREFACE 



This report was prepared as part of the Coastal Problem Area of the Re- 

 pair, Evaluation, Maintenance, and Rehabilitation (REMR) Research Program. 

 The work was carried out jointly under Work Unit 32278, "Rehabilitation of 

 Rubble-Mound Structure Toes," of the REMR Program and Work Unit 31269, "Sta- 

 bility of Breakwaters," of the Civil Works Coastal Area Program. For the REMR 

 Program, Problem Area Monitor is Mr. John H. Lockhart, Jr., Office, Chief of 

 Engineers (OCE), US Army Corps of Engineers (Corps). REMR Program Manager is 

 Mr. William F. McCleese of the US Army Engineer Waterways Experiment Station's 

 (WES's) Structures Laboratory, and Coastal Problem Area Leader is Mr. D. D. 

 Davidson of WES's Coastal Engineering Research Center (CERC). Messrs. John G. 

 Housley and Lockhart, OCE, are Technical Monitors of the Civil Works Coastal 

 Area Program. 



This report is the first in a series of case histories of Corps break- 

 water and jetty structures at nine Corps divisions. The case histories con- 

 tained herein were extracted from information obtained from several sources 

 (where available) which included inspection reports, conferences, telephone 

 conversations, project plans and specifications, project files and correspon- 

 dence, design memorandums, literature reviews, model studies, surveys (bathy- 

 metric and topographic), survey reports, annual reports to the Chief of 

 Engineers, House and Senate documents, and general and aerial photography. 

 Unless otherwise noted, only prominent changes to the prototype structures 

 subsequent to March 1986 are included in this report. 



This work was conducted at WES during the period April 1985 - July 1986 

 under general direction of Dr. James R. Houston, Chief, CERC, and 

 Mr. Charles C. Calhoun, Jr., Assistant Chief, CERC; and under direct super- 

 vision of Mr. C. Eugene Chatham, Jr., Chief, Wave Dynamics Division (CW), and 

 Mr. D. D. Davidson, Wave Research Branch (CW-R), CW. This report was prepared 

 by Mr. Robert R. Bottin, Jr., CW. Messrs. Robert D. Carver and Peter J. 

 Grace, CW-R, conducted site inspections and collected much of the data con- 

 tained herein. This report was edited by Ms. Shirley A. J. Hanshaw, Infor- 

 mation Products Division, Information Technology Laboratory, WES. 



COL Dwayne G. Lee, CE, was Commander and Director of WES during the 

 publication of this report. Dr. Robert W. Whalin was Technical Director. 



