CONTENTS 



CHAPTER 5 



PLANNING ANALYSIS 



Page 



I GENERAL 5-1 



II SEAWALLS , BULKHEADS , AND REVETMENTS 5-2 



1 . Functions 5-2 



2 . Limitations 5-2 



3. Functional Planning of the Structure 5-3 



4 . Use and Shape of the Structure 5-3 



5. Location of Structure with Respect to Shoreline 5-4 



6 . Length of Structure 5-4 



7. Height of Structure 5-4 



8. Determination of Ground Evaluation in Front of a Structure.... 5-4 



III PROTECTIVE BEACHES 5-6 



1 . Functions 5-6 



2. Limitations 5-7 



3. Planning Criteria 5-7 



IV SAND DUNES 5-24 



1 . Functions 5-24 



2. Positioning 5-26 



V SAND BYPASSING 5-26 



1 . General 5-26 



2 . Methods 5-30 



3. Legal Aspects 5-33 



VI GROINS 5-35 



1 . Definition 5-35 



2 . Groin Operation 5-35 



3. Functional Design 5-39 



4. Filling Groins 5-52 



5 . Permeable Groins 5-52 



6 . Adjustable Groins 5-53 



7. Alinement of Groins 5-53 



8. Order of Groin Construction 5-54 



9. Guidance from Existing Projects 5-54 



10. Cost Effectiveness of Groin Construction 5-55 



1 1 . Legal Aspects 5-56 



VII JETTIES 5-56 



1 . Definition 5-56 



2 . Types 5-56 



3 . Siting 5-57 



4. Effects on the Shoreline 5-58 



VIII BREAKWATERS, SHORE- CONNECTED 5-58 



1 . Definition 5-58 



2. Types 5-59 



3 . Siting 5-59 



4. Effect on the Shoreline 5-60 



