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 BEFORE COMPLETING FORM 



1. REPORT NUMBER 



TP 76-17 



2. GOVT ACCESSION NO, 



3. RECIPIENT'S CATALOG NUMBER 



4. J\T\.E (and Subtitle) 



FLOATING BREAKWATER FIELD ASSESSMENT PROGRAl^l, 

 FRIDAY HARBOR, WASHINGTON 



5. TYPE OF REPORT a PERIOD COVERED 



Technical Paper 



6. PERFORMING ORG. REPORT NUMBER 

 8. CONTRACT OR GRANT NUMBERfe) 



7. AUTHORfs; 



B.H. Adee 

 E.P. Richey 

 D.R. Christensen 



DACW72-74-C-0012 



9. PERFORMING ORGANIZATION NAME AND ADDRESS 



Ocean Engineering Research Laboratory 

 University of Washington 

 Seattle, Washington 98105 



F31538 



11. CONTROLLING OFFICE NAME AND ADDRESS 



Department of the Army 



Coastal Engineering Research Center (CERRE-OC) 



Kingman Building, Fort Belvoir, Virginia 22060 



12. REPORT DATE 



September 1976 



13. NUMBER OF PAGES 



224 



14. MONITORING AGENCY NAME a ADDRESSf/f d/f/eren( from Controlling Oflice) 



15. SECURITY CLASS, (of this report) 



UNCLASSIFIED 



16. DISTRIBUTION STATEMENT fo/ this Report) 



Approved for public release; distribution unlimited. 



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



18. SUPPLEMENTARY NOTES 



19. KEY WORDS (Co 



essary and Identity by block number) 



Breakwaters 

 Floating breakwaters 

 Friday Harbor, Washington 



Wave attenuation 



Wave reflection 



Waves 



Wave transmission 



0. ABSTRACT (Continue on reverse aide If necesaary and Identify by block nianber) 



A theoretical model for predicting the dynamic behavior of a floating break 

 water is presented along with a report on a field experiment designed to pro- 

 vide basic data for verifying the model. Additional data were taken from the 

 literature and from auxiliary laboratory experiments. 



The dynamic behavior characteristics investigated were: (a) Total trans- 

 mitted and reflected waves and their components; (b) wave forces on the break- 

 water; (c) motions of the breakwater; and fdl forces on the mooring lines. The 



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