B = 30 cm 



© 



he - 60 cm 



0.5 



.0 m 



BWII 



Figure A-13. Breakwater 11 cross section. 



BWll was made of two fine-wire rectangular baskets that enclosed core-type 

 stone. The primary purpose of this structure was to examine the wave trans- 

 mission and reflection characteristics of permeable material. 



B- 30cm 



hg = 70 cm 



0.5 



I.Om 



BWI2 



Figure A-14. Breakwater 12 cross section. 

 BW12 is a structure with no core similar in geometry to breakwaters 8 and 9. 



74 



