Mad Inlet (Map 27) 



160. Position of the west side of Mad Inlet is controlled by changes in 



position and aerial extent of Bird Island described above. The inlet's east 



< 

 side eroded rapidly (1,890 m, 37 m/year) from 1873 to 1924/26 and then 



accreted slightly (120 m, 14 m/year) from 1924/26 to 1933/34. Another period 



of erosion (240 m, 8 m/year) followed from 1933/34 to 1962/63. From 1962/63 



to 1969/70, rapid accretion (420 m, 60 m/year) followed. Accretion patterns 



continued (150 m, 11 m/year) to 1983. Inlet throat width increased from 275 m 



in 1873 to a maximum of almost 400 m in 1933/34 and then narrowed to 120 m in 



1969/70 and 1983. 



Tubbs Inlet (Map 28) 



161. The earliest survey date available for Tubbs Inlet is 1924. From 

 1924 to 1962/63, the inlet's east side accreted (1,300 m) west quite rapidly, 

 up to 68 m/year. Land west of the inlet lost 975 m of length during this time 

 interval. Inlet throat width narrowed from 550 m in 1924 to approximately 

 300 m in 1962/63. From 1962/63 to 1983, patterns reversed with east of the 

 inlet eroding approximately 1,200 m (up to 157 m/year). Inlet width increased 

 to 360 m by 1983. In 1983, Tubbs Inlet appeared as two inlets separated by an 

 island approximately 300 m long. 



Shallotte Sound (Maps 28 and 29) 



162. East of Shallotte Sound inlet, alongshore accretion added 480 m 

 (up to 8.4 m/year) between 1857/59 and 1962/63. No substantial changes in 

 length occurred between 1962/63 and 1983. The inlet's west side eroded 300 m 

 from 1857/59 to 1924, accreted 90 m from 1924 to 1933, and eroded 210 m 



(7.4 m/year) from 1933 to 1962/63. From 1962/63 to 1969/70, it maintained its 

 length, but eroded an additional 120 m by 1983. Net changes (1857/59 to 1983) 

 include an east side length increase of 480 m, a west side length decrease of 

 550 m, and an increase of inlet width from approximately 400 m in 1857/59 to 

 approximately 480 m in 1983. Maximum inlet width (580 m) occurred in 1924. 

 Lockwood Folly Inlet (Map 30) 



163. Since the earliest survey date (1856/57), Lockwood Folly Inlet has 

 migrated west. Between 1856/57 and 1924, east side accretion added 730 m 

 while west side erosion removed 550 m in length. Between 1924 and 1969/70, 

 the east side eroded slightly (up to 3 m/year) or remained stable. The west 

 side eroded slightly (up to 3 m/year) from 1924 to 1962, but accreted 



(13 m/year) from 1962 to 1969/70. From 1969 to 1983, east side accretion 



120 



