ERDC/CHL CHETN-II-47
March 2004
Figure 9.
Plot of shoreline change after 1993 storm relative to 1991/1992 fill placement and location of
hot (red) and cold (blue) spots relative to nearshore bathymetry of Ocean City, MD (Stauble
and Bass 1999)
North Carolina Projects. There are four beach nourishment or inlet navigation dredged material
disposal projects that have hot spots along the North Carolina coast, and two proposed project areas
that have known existing hot spot locations. The four constructed projects are located in the central
and southern part of the coast. Net drift is from north to south and east to west depending on the
shoreline orientation along this cuspate shoreline.
The Bogue Banks area, located about 16 km (10 miles) west of Cape Lookout, has a program that
places some sand dredged from the navigation channel at Beaufort Inlet and Morehead City Harbor
onto the beach about every 4 years at Fort Macon State Park and Atlantic Beach west of the inlet. A
beach-fill project for Bogue Banks is presently in the feasibility study phase. Shoreline change
studies indicate a hot spot along the Fort Macon and Atlantic Beach shoreline close to the inlet and
at Pine Knoll Shores (Figure 10a). It is suspected that erosion in the Fort Macon area is related to the
wave refraction over the ebb shoal and a drift reversal into the inlet resulting in local shoreline
erosion. Further study is needed to verify if this is a hot spot and its cause. Another area of erosion is
indicated some 6,096 m (20,000 ft) to the west in Pine Knoll Shores. Little study has been done, so a
cause is undetermined at this time.
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