response to the cumulative effects of the inlet-related and storm-induced to 

 provide protection against moderate storms until the entire project could be 

 restored to authorized dimensions. 



13. Material for the emergency fill was obtained from a borrow area lo- 

 cated in Carolina Beach Inlet. This borrow area, shown in Figure 4, began at 

 the Atlantic Intracoastal Waterway (AIWW) and extended approximately 2,000 ft 

 seaward. Removal of material from this section of the inlet effectively cre- 

 ated a sediment trap which could supply material for future beach nourishment 

 operations in accordance with the long-term erosion control plan for Carolina 

 Beach. The performance of the sediment trap is discussed later in this 

 report. 



14. Construction of the Carolina Beach project was completed in July 

 1982, following the placement of 3,662,000 cu yd of sand along the entire 

 length of the project. The borrow source used for the final phase of con- 

 struction was an upland area located along the east bank of the Cape Fear 

 River south of the Carolina Beach Sewage Treatment Plant (Figure 3). This 

 final phase of construction completely restored the berm and dune section up 

 to the southern end of the rubble-mound seawall, baseline sta 116+40, and 

 provided a beach berm at el +6.5 in front of the seawall. The design volume 

 for the final phase of project construction was determined by assuming that 

 the restored beach profile would parallel the existing profile out to a depth 

 of closure of approximately -25 to -28 ft as shown in Figure 5. Because the 

 upper portion of the fill had been designed and authorized, enough material 

 was placed to allow for a reasonable amount of overfill and resulted in the 

 designed seaward projection of the shoreline at mean high water. Since con- 

 trolled placement of fill below the normal level of wave activity is not 

 possible, the design volume of material was distributed along the project 

 shoreline in the form of a construction berm (Figure 5). The redistribution 

 of the construction berm material to the deeper portion of the active profile 

 was to be accomplished by normal wave activity. 



Monitoring Completed Coastal Projects Program 



15. This beach erosion control-hurricane protection project was among 

 the first four projects selected for monitoring in 1981 under the then new 

 MCCP Program. The program has as its goal the advancement of coastal 



