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REPORT DOCUMENTATION PAGE 



READ INSTRUCTIONS 

 BEFORE COMPLETING FORM 



1. REPORT NUMBER 

 TP 81-5 



2. GOVT ACCESSION NO 



3. RECIPIENT'S CATALOG NUMBER 



4. TITLE (and Subtitle) 



DESIGN OF RIPRAP REVETMENTS FOR PROTECTION 

 AGAINST WAVE ATTACK 



5. TYPE OF REPORT & PERIOD COVERED 



Technical Paper 



6. PERFORMING ORG. REPORT NUMBER 



7. AUTHORfa; 



John P. Ahrens 



8. CONTRACT OR GRANT NUMBERfsJ 



9. PERFORMING ORGANIZATION NAME AND ADDRESS 



Department of the Army 



Coastal Engineering Research Center (CERRE-CS) 



Kingman Building, Fort Belvoir, Virginia 22060 



D31616 



11. CONTROLLING OFFICE NAME AND ADDRESS 



Department of the Army 



Coastal Engineering Research Center 



Kingman Building, Fort Belvoir, Virginia 22060 



12. REPORT DATE 



December 1981 



13. NUMBER OF PAGES 



31 

 IS. SECURITY CLASS, (ot this report) 



14. MONITORING AGENCY NAME ft ADDRESSf/f different from Controlling Olllce) 



UNCLASSIFIED 



16. DISTRIBUTION ST ATEMENT (ol thla Report) 



Approved for public release; distribution unlimited. 



17. DISTRIBUTION STATEMENT (ol the abstract entered In Block 20. It different from Report) 



18. SUPPLEMENTARY NOTES 



19. KEY WORDS (Continue . 



overae aide It neceeaary and Identify by block number) 



Armor overlays 



Revetments 



Riprap 



Wave runup 



20. ABSTRACT CCorrtraue on reverme ml<£a ft neceeaary and Identity by block number) 



Basic information on the design of riprap revetments for protection 

 against wave attack is presented. The topics covered include the selec- 

 tion of armor and filter layers, zero damage and reserve stability, design 

 wave height, wave runup, and the use of armor overlays. Example problems 

 are worked to illustrate the concepts presented. 



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EDrTION OF » MOV 65 IS OBSOLETE 



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