b. Plan 2. Not recommended because of large long wave amplifications at 

 proposed passenger pier. 



c. Plan 3a. Generally acceptable for both short and long waves. The long 

 wave amplification factor at one resonance is quite high at Piers 1-3 and 

 the proposed passenger pier. 



d. Plan 3b. Generally acceptable. 



e. Plan 3c. Generally acceptable. 



/ Plan 4a. Not recommended because of large wind waves and swell at the 

 proposed passenger pier. 



g. Plan 4b. Generally acceptable. Fairly large wind waves and swell can be 

 expected at the proposed passenger pier. 



h. Plan 4c. Generally acceptable. 



i. Plan 5. Not recommended because of large long wave amplifications at 

 proposed barge and passenger piers. 



j. Plan 6. Generally acceptable. Fairly large wind waves and swell can be 

 expected at the proposed passenger pier. 



L Plan 7. Not recommended because of large long wave amplifications at 

 proposed barge and passenger piers. 



All of the plans, including those designated as acceptable, include some long 

 wave resonant peaks which are larger than in the existing harbor. These seem to 

 be a likely consequence of creating new pier areas. It is assumed that peaks with 

 amplification factors well under 10 will not cause any major operational diffi- 

 culties. 



Some of the limitations in the plans tested may be overcome by prudent 

 design. For example, the fill area in the southwest area of the harbor created 

 strong oscillations. However, the same facility could be designed as a pile- 

 supported structure and the strong oscillations would be avoided. The 

 breakwater extension present in some of the plans might be designed without a 

 core, allowing it to block wind waves and swell but remain transparent to long 

 waves. 



A physical model study to refine and validate the preferred plan(s) is strongly 

 recommended as a final phase of the studies. The physical modeling component 

 was part of the originally proposed WES study. 



Chapter 7 Conclusions and Recommendations 89 



