01/30/2009
D
R
A
F
T
CSE
–S&W–DEW [DRAFT]
Accreted Land Management Plan
158
2253 [30 JANUARY 2009]
Town of Sullivan’s Island, SC
Alternative 4 – Modify Topography & Implement Expanded Management of Vegetation
Alternative 4 assumes that a “naturalized” landscape plan includes modification of the topog-
raphy. Such modifications are assumed to include at least one continuous dune ridge parallel-
ing the shoreline, which provides improved storm-surge protection. The degree of surge and
wave height reduction is simply a function of the scale of the dune feature. Other topographic
modifications are assumed to include limited excavation of existing swales for purposes of
creating open-water ponds to add habitat for waterfowl, provide an attractive amenity for the
community, reduce the mosquito population associated with existing wet areas, and improve
ocean vistas (see Fig 6.3). Initial costs would include earth moving, tree removal, and replant-
ing of altered areas (similar to Alternative 3). After the initial landscape is developed, it would
require ongoing maintenance similar to Alternative 3.