13. (Concluded). 



c. Preliminary experiments provided an excellent means to expeditiously evaluate various improvement plans 

 (Plans 1-18) with respect to wave heights, wave-induced current patterns and magnitudes, and sediment tracer 

 patterns and subsequent deposits. These experimental results were used as a basis for development of the final 

 improvement plan (Plan 19). 



d. The final improvement plan (Plan 19) will result in calm conditions (wave heights of 0. 15 m (0.5 ft) or less) in 

 the existing harbor during typical storm conditions. For 50-year storm conditions with extreme high-water levels, 

 wave heights will not exceed 0.52 m (1.7 ft) in the harbor. 



e. Wave heights at the causeway docks, particularly the inner dock, will be significantly reduced as result as a 

 result of the Plan 19 breakwater configuration during both typical and extreme (50-year) storm wave events. 



/. The Plan 19 breakwater configuration will have no adverse impacts on current patterns and magnitudes and/or 

 the movement of sediment in the immediate area. 



g. The widened and deepened breach in the existing causeway, in conjunction with the deposition basin of Plan 

 19, will be effective in trapping sediment (particularly for storm waves with higher swl's) for sand management 

 purposes. 



