Table 7 (Concluded) 



Date(s) Construction and Rehabilitation History 



1978- 3-stone-wide ocean-side toe protection. The crown width and eleva- 

 1980 tione were 21 and +13.5 ft mlw, respectively. Side slopes on the 

 (Cont) jetty were IV: 2H and IV: 3H for the trunk and head sections, respec- 

 tively. Armor stone size for the inner trunk section was determined 

 using Hudson's stability equation and design wave height of 10.1 ft. 

 The cost for construction of the south jetty was $5,614,000. 



1981- Dredging to centralize the ocean entrance channel was accomplished 



1984 in early 1981. Subsequent bathymetric surveys were taken in April 

 1981 and August 1984. The surveys showed that, in general, the 

 basic pattern was one of scour occurring along the central zone be- 

 tween the jetty structures and deposition along the bottoms adjacent 

 to the structures and inlet gorge. In effect, the basic functional 

 purpose of the dual jetty system had been attained as a result of 

 the south jetty construction. 



1985 Presently, the south jetty is in good condition; whereas, the north 

 jetty, which was constructed of smaller size armor stone, is in need 

 of repair work in several areas showing localized armor stone 

 damage . 



(Sheet 4 of 4) 

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