SUMMARY OF ALL SEGMENTS 



150-180 Degrees (7.6%) 

 120-149 Degrees (6.5%) 



90-119 Degrees (9.1%) 



0-29 Degrees (12.7%) 



30-59 Degrees (32.7%) 



60-89 Degrees (31.3%) 



Figure 59. Division of shoreline segments into specified 

 orientation categories 



gentler slopes for confirmation. Gentle slopes have greater horizontal dis- 

 placement of shoreline per unit vertical change in sea level. 



182. On Figures 62 and 63, it can be noted that although there is no 

 apparent linear correlation, a large number of data points are clustered where 

 comparatively steep slopes correspond to low values for shoreline change. 

 Inspection of shoreline change maps and data for individual reaches indicates 

 that the largest number of data points are derived from reaches 6 and 7 , which 

 extend from Winyah Bay to Cape Fear. Comparing data from reaches 6 and 7 with 

 data from reaches to the south shows significant differences in nearshore 

 slopes and shoreline movement between these two areas. 



183. Table 14 shows percentage of coastal segments in each area that 

 have nearshore slopes steeper than specified values. This figure shows near- 

 shore slopes on-the-whole are steeper in reaches 6 and 7 than in southern 

 reaches. Figures 64 and 65 compare cumulative percentage of segments with 

 maximum and average annual shoreline movement greater than specified values. 

 Both figures indicate in reaches 6 and 7 shoreline movement has, overall, been 

 substantially less than in reaches 1 through 5. Figures 66 and 67 compare 

 maximum and average annual shoreline movements of segments that have nearshore 



130 



