Preface 



In March 1998, the U.S. Army Engineer District, New Yori< (New York 

 District), requested that the U.S. Army Engineer Waterways E.xperiment Station 

 (WES). Coastal and Hydraulics Laboratory (CHL) provide a functional design to 

 reduce the renourishment interval at a section of Monmouth Beach, New Jersey, 

 that experiences a high rate of erosion. Ms. Lynn M. Bocamazo, Engineering 

 Division. New York District, was the project study manager. WES is a complex 

 of five laboratories of the U.S. Army Engineer Research and Development Center 

 (ERDC). 



This report documents the subject study, which developed and evaluated 

 shore-protection alternatives and made estimates of the required stone sizes and 

 volumes for the recommended alternative involving a coastal groin. The study 

 encompassed an analysis of the functioning of groins at the site, analysis of the 

 acting coastal processes, numerical simulations of shoreline change, and develop- 

 ment of functional designs combined with coastal engineering analysis of the 

 associated structures. 



The study was performed by Mr. S. Jarrell Smith. Coastal Processes Branch 

 (CPB), Coastal Sediments and Engineering Division (CSED), Mr. Gregory L. 

 Williams, Coastal Evaluation and Design Branch, CSED, and Dr. Nicholas C. 

 Kraus, CSED, all of CHL. Work was perfonned under the supervision of 

 Mr. Thomas W. Richardson, Chief, CSED. Ms. J. Holley Messing, CPB, 

 coordinated report preparation. 



The Director and Assistant Director of CHL were Dr. James R. Houston and 

 Mr. Charles C. Calhoun, Jr. (retired), respectively. 



At the time of report publication. Commander of ERDC was COL Robin R. 

 Cababa, EN. 



Tlie contents of this report are not to be used for advertising, publica- 

 tion, or promotional purposes. Citation of trade names does not con- 

 stitute an official endorsement or approval of the use of such 

 conniierciat products. 



