UNCLASSIFIED 



Security Classification 



(Security classltic 



DOCUMENT CONTROL DaTA -R&D 



of title, body ot abstract and indexing annotation muat be entered when the overall report Is classified) 



ORIGINATING ACTIVITY (Corporate author) 



Coastal Engineering Research Center (CERC) 

 Corps of Engineers, Department of the Army 

 Washington, D. C. 20016 



2a. REPORT SECURITY CLASSIFICATION 



UNCLASSIFIED 



3. REPORT TITLE 



PIPE PROFILE DATA AND WAVE OBSERVATIONS FROM THE CERC BEACH EVALUATION 



PROGRAM, JANUARY-MARCH 1968. 



descriptive NOTES (Typo ot report and Inclusive dates) 



5. AOTHOR(S) (First n 



H. D. Urban 



e, middle initial, last 



C. J. Galvin, Jr. 



6. REPORT DATE 



September 1969 



rAL NO. OF PAGES 



74 



76. NO OF REFS 



5 



8a. CONTRACT OR GRANT NO. 



6. PROJEC T NO. 



9fi. ORIGINATOR 1 ^ REPORT NUM-BER(S) 



MISCELLANEOUS PAPER 3-69 



I. DISTRIBUTION STATEMENT 



This document has been approved for public release and sale; its distribution 

 is unlimited. 



II. SUPPLEMENTARY NOTES 



12. SPONSORING MILI 



ACTIVITY 



Observations of sand levels at pipes placed at 50-foot intervals 

 from dune to low tide terrace along two profile lines on each of five 

 Atlantic Coast Beaches proved to be a feasible alternate method of sur- 

 veying beach profiles. For 1-week intervals during January, February, 

 and March 1968, the maximum changes in sand level at any pipe on the 

 five beaches was 5.7 feet of erosion and 4.7 feet of accretion. Changes 

 in sand level were more likely at pipes located in the beach face than 

 at pipes located below mean sea level. When significant erosion occurred 

 between successive surveys on any profile, there was a tendency for the 

 maximum decrease in sand level to occur at locations high on the earlier 

 of the two surveys. Pipe-profile data showed that beach steepness and 

 fluctuations in sand level usually decrease in a north-to-south direction 

 for the five beaches studied (from Westhampton Beach, N. Y. , through 

 Ludlam Island, N. J.), in a way that appears related to decreases in wave 

 height and the sediment size on the same beaches. Five appendixes show 

 pipe-profile data in tables and graphs. A sixth appendix contains wave 

 observations . 



IIIIRLACII DO FORM 1471. I JAN 44, 



W±W*k PtHUt 4 M "»<5l MFLMII DD FORM 1471. I 



UNCLASSIFIED 

 Security Classification 



