Date(s) 
1964- 
1965 
(cont. ) 
1971 
1984 
Table 7 (Concluded) 
Construction and Rehabilitation History 
time of the repairs the jetties were in fair condition (mostly 
general corrosion), except at their outer ends where scour and active 
soil pressures were evident, and the shoreline was eroding at the 
landward ends. The cover stone size was determined from Hudson's 
slope stability formula and a maximum depth-limited wave height of 
12 ft. Existing elevations along the jetties varied from +2 to -11 
(seaward ends) ft mlt. The rehabilation cost was $397,800 and 
required 46,910 tons of stone. 
Riprap stone (0.5 in. to 200 lb) was placed on the north jetty land- 
ward end. The shoreline had eroded leaving a gap of approximately 
50 ft. A total of 600 tons of stone was placed at a cost of about 
$9,000. 
Except for general deterioration (corrosion) at several locations of 
the exposed sheetpiling, the jetties were considered to be in good 
condition (visual inspection). The present overall lengths of the 
north and south dikes are 2,300 and 2,250 ft, respectively. 
33 
