Figure 8. Aerial view of Lakeview Park, Lorain, Ohio 



Design of Beach Planform 



Types of shoreline configuration 



A primary consideration in detached breakwater design is the resulting 

 shoreline configuration due to the structure. Three basic types of beach 

 planforms have been defined for detached breakwaters: tombolo, salient, or 

 limited. A bulge in the shoreline is termed a salient, and if the shoreline 

 connects to the breakwater it is termed a tombolo (see Figure 1). A limited 

 response, or minimal beach planform sinuosity, may occur if an adequate 

 sediment supply is not available or the structure is sited too far offshore to 

 influence shoreline change. Figures 9 to 11 show U.S. prototype examples of 

 each shoreline type. 



Selection of functional alternatives 



Each planform alternative has different sediment transport patterns and 

 effects on the project area, and certain advantages and disadvantages exist for 

 each. The resulting shoreline configuration depends on a number of factors 

 including the longshore transport environment, sand supply, wave climate, and 

 geometry of the breakwater system. 



Chapter 2 Functional Design Guidance 



13 



