ACCRETING (28.5%) 



ERODING (40.0%) 



STABLE (31 .5%) 



Figure 30. Summary of shoreline movement for coastal 

 reach 2, 1851-1983 



86. Standard deviations in excess of 5 m/year occur only in the vicinity 

 of inlets (Figure 31) . Central portions of islands appear more stable through 

 time. Maximum shoreline movements (Figure 32) are not as large in magnitude 

 as in previous reaches , but they do approach 1 , 000 m and are at a maximum in 

 the vicinity of inlets. 



87. Sullivans Island and Isle of Palms have generally been accretional 

 throughout the period of data examined (Figure 33). From 1960 to 1983, the 

 largest spatial distribution of accretion occurred along these two islands. 

 Dewees Island has been consistently erosional through the period except near 

 Capers Inlet. The most recent period shows erosion even in this area. Like- 

 wise, Capers Island has been dominated temporally by erosion. The most recent 

 period shows some accretion in the vicinity of Price Inlet on Capers Island. 

 Price Inlet has affected Bull Island to the north also. Erosion and accretion 

 rates alternate and vary in magnitude along the southern portion of Bull 

 Island, while the north end has been consistently eroding through time. A 

 summary of average shoreline change rates per island for each possible data 

 interval are presented in Table 6. 



71 



