Table 3
COMPATIBILITY OF ALTERNATIVES WITH SHORELINE USES
Strolling
Bathing
Fishing
Boating
Alternative
No Action
Sometimes
Sometimes
Usually
Usually
Relocation
Sometimes
Sometimes
Sometimes
Sometimes
Bulkheads
Usually
Sometimes
Almost always
Almost always
Revetments
Usually
Sometimes
Usually
Usually
Breakwaters
Almost always
Almost always
Almost always
Usually
Groins
Usually
Almost always Almost always
usually
Beach Fills
Almost always
Almost always Usually
Almost always
Vegetation
Almost never
Almost never
Almost always
Rarely
Infiltration and
Drainage Controls
Almost always
Almost always Almost always
Almost always
Slope Flattening
Almost always
Almost always Almost always
Almost always
Perched Beaches
Almost always
Almost always Almost always
Usually
STRUCTURAL DESIGN
If the chosen alternative involves construction of a shore protection device, several key problems
must be resolved before an adequate structural design is completed. The first step is evaluation of the
potential water level and design wave height at the site to determine how strong the device must be to
withstand wave forces. Other considerations include toe protection, filtering, flank protection, structural
height, environmental factors, and availability of materials.
Water Levels
A design water level must be determined before the wave height used to design structures can be
found. In tidal waters, the elevation of the spring or diurnal tide (see Tide Tables under the heading
"Water Levels", in the OTHER HELP section) is an appropriate starting point for low cost protection.
An increment should be added to account for storm setup effects. Local experience should dictate, but
values of two or three feet are probably reasonable for the storm setup.
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