Unclassified 



SECURITY CLASSIFICATION OF THIS PAGE 



REPORT DOCUMENTATION PAGE 



Form Approved 

 0MB No. 07040188 



la. REPORT SECURITY CLASSIFICATION 

 Unclassified 



lb RESTRICTIVE MARKINGS 



SECURITY CLASSIFICATION AUTHORITY 



2b. DECLASSIFICATION /DOWNGRADING SCHEDULE 



3 DISTRIBUTION /AVAILABILITY OF REPORT 



Approved for public release; distribution 

 unlimited . 



4. PERFORMING ORGANIZATION REPORT NUMBER{S) 

 Technical Report CERC-90-15 



5, MONITORING ORGANIZATION REPORT NUMBER(S) 



6a. NAME OF PERFORMING ORGANIZATION 

 USAEWES, Coastal Engineering 

 Research Center 



6b. OFFICE SYMBOL 

 \lf applicable) 



7a. NAME OF MONITORING ORGANIZATION 



6c. ADDRESS (Oty, State, and ZIP Code) 



3909 Halls Ferry Road 

 Vicksburg, MS 39180-6199 



7b. ADDRESS (C/«y, State, and ZIP Code) 



8a. NAME OF FUNDING/SPONSORING 

 ORGANIZATION 



US Army Corps of Engineers 



8b. OFFICE SYMBOL 

 (If applicable) 



9. PROCUREMENT INSTRUMENT IDENTIFICATION NUMBER 



8c. ADDRESS fOty, State, and ZIP Code) 



Washington, DC 20314-1000 



10 SOURCE OF FUNDING NUMBERS 



32535 



1 1 . TITLE (Include Security Classification) 



Functional Design of Breakwaters for Shore Protection: Empirical Methods 



12. PERSONAL AUTHOR(S) 

 Rosati, Julie Dean 



13a TYPE OF REPORT 

 Final report 



13b. TIME COVERED 

 FROM TO 



14. DATE OF REPORT (.Year, Montft, Day) 

 September 1990 



15. PAGE COUNT 

 49 



16. SUPPLEMENTARY NOTATION 



Available from National Technical Information Service, 5285 Port Royal Road, Springfield, 

 VA 22161. 



COSATI CODES 



18. SUBJECT TERMS (Continue on reverse if necessary and identify by block number) 

 Detached breakwaters Pocket beaches 

 Empirical Design Method Reef breakwaters 

 Headlands Segmented breakwaters 



1 9, ABSTRACT (Continue on reverse if necessary artd identify by block number) 



This report presents empirical relationships available in the literature for design 

 and prediction of beach response to single, segmented, headland, pocket beach, and reef 

 breakwater systems for the primary purpose of shore protection. The data set used to 

 develop each design method is discussed, and the empirical procedures are evaluated 

 based on available CorpsT-built breakwater project data, An existing US detached break- 

 water project is used to intercompare design relationships and further assess their 

 validity. Several empirical methods are shown to predict prototype response fairly well. 

 These relationships may be useful in conjunction with detailed studies to quickly assess 

 prototype response to various design alternatives. 



20. DISTRIBUTION /AVAILABILITY OF ABSTRACT 

 El UNCLASSIFIED/UNLIMITED D SAME AS RPT. Q DTIC USERS 



21 ABSTRACT SECURITY CLASSIFICATION 

 Unclassified 



22a. NAME OF RESPONSIBLE INDIVIDUAL 



22b. TELEPHONE (Include Area Code) 22c. OFFICE SYMBOL 



00 Form 1473, JUN 86 



Previous editions are obsolete. 



SECURITY CLASSIFICATION OF THIS PAGE 

 Unclassified 



, MBL/WHOI 



0301 0D^l^7^ 7 



