Table 6 

 Plan 3 Wave Heights, Transmission Test 



T 

 sec 



18 

 18 

 16 



ft 



14.4 

 17.9 

 21.6 



ft 



15.0 

 18.6 

 20.8 



(H mo )tt 

 ft 



3.0 

 3.4 

 4.0 



Kttt 



0.20 

 0.18 

 0.19 



* Incident wave height at the wave board. 



** Incident wave height at the structure. 



f Transmitted wave height approximately 350 ft behind the structure. 



ft Transmission coefficient, (H mo ) i /(H mo ) t . 



5.0 

 4.0 



(Hmo)t (ft) 















□ 









□ 





3.0 



- 



□ 







2.0 











1.0 

 n n 



i 



i 



i 



i 



12 



14 



20 



22 



16 18 



(Hmo)i (ft) 



Figure 20. Wave transmission through breakwater, Plan 3 



transmitted through the breakwater. The transmission test showed that over- 

 topping contributes to excessive wave heights in the harbor, but most of the 

 wave energy is transmitted through the structure. 



Plan 4 



39. Plan 4 (Figure 21) consisted of adding a 9-ft-wide layer of 1- 

 to 3 -ton stone ("T" Stone) to the existing structure on the harbor side and 



29 



