IINrT.A.q.qTFTFp 



SECURITY CLASSIFICATION OF THIS PAGE (When Data Entered) 



REPORT DOCUMENTATION PAGE 



READ INSTRUCTIONS 

 BEFORE COMPLETING FORM 



1. REPORT NUMBER 



MR 79-5 



2. GOVT ACCESSION NO 



3. RECIPIENT'S CATALOG NUMBER 



4. TITLE (and Subtitle) 



BEACH CHANGES AT WESTHAMPTON BEACH, NEW YORK, 

 1962-73 



TYPE OF REPORT & PERIOD COVERED 



Miscellaneous Report 



6. PERFORMING ORG. REPORT NUMBER 



7. AUTHORfsj 



Allan E. DeWall 



8. CONTRACT OR GRANT NUMBERfsJ 



PERFORMING ORGANIZATION NAME AND ADDRESS 



Department of the Army 



Coastal Engineering Research Center (CERRE-CP) 



Kingman Building, Fort Belvoir, Virginia 22060 



D31194 



I I. CONTROLLING OFFICE NAME AND ADDRESS 



Department of the Army 



Coastal Engineering Research Center 



Kingman Building, Fort Belvoir, Virginia 22060 



REPORT DATE 



August 1979 



NUMBER OF PAGES 



,129" 12.1 



14. MONITORING AGENCY NAME & ADDRESSf// dlllerent from Controlling Oltlce) 



SECURITY CLASS, (ot thla report) 



UNCLASSIFIED 



16. DISTRIBUTION ST ATEMENT (of thla Report) 



Approved for public release; distribution unlimited. 



17. DISTRIBUTION STATEMENT (of the abatract entered In Block 20, It different from Report) 



18. SUPPLEMENTARY NOTES 



19. KEY WORDS ( Continue 



Accretion 



Beach profile surveys 



Beaches 



Coastal engineering 



Ida if necessary and identify by block i 



nber) 



Erosion 



Groins 



Westhampton Beach, New York 



2Q. ABSTRACT CCarrtfmje an. r»vers» aids ff rrcce-seary and Identify by block number) 



Repetitive surveys of the above MSL beach were made along 20 profile lines 

 at Westhampton Beach, on the south shore of Long Island, New York, from 1962 to 

 1973. After the study had begun, a large groin field (15 groins) with associ- 

 ated beach fill was constructed in the middle of the area being surveyed. The 

 data show that shoreline erosion of 2 to 3 meters (6.6 to 9.8 feet) per year 

 within and updrift of the groin field was reversed after groin construction; 

 shoreline erosion down drift (west) of the groin field accelerated to at least 



(continued) 



on FC 



1473 



EDITION OF J NOV 65 IS OBSOLETE 



UNCLASSIFIED 



SECURITY CLASSIFICATION OF THIS PAGE (When Data Entered) 



