V 



COKTEKTS 



Page 



PREFACE iii 



PART I: INTRODUCTION 1 



Purposes of Investigation 1 



Scope of This Report 1 



The Prototype 3 



PART II: THE MODEL 6 



Design Considerations 6 



Scale Relationships 6 



Description of Model 7 



Model Appurtenances 9 



PART III: VERIFICATION OF MODEL REPRODUCTION OF PROTOTYPE 



PHENOMENA 14 



Astronomical Tides ik 



Current Velocities 15 



Hurricane Tides , l6 



PART IV: TESTS AND RESULTS 25 



Base Tests 25 



Technique for Testing Improvement Plans 26 



Middle Bay Barriers 27 



Lower Bay Barriers 32 



Upper Bay Barriers 36 



Combination Barrier Plans 37 



PART V: CONCLUSIONS 49 



Effects of Barriers on Tides 49 



Effects of Barrier Locations on Buildup . 49 



Effects of Barriers on Tidal Currents . 51 



TABLES 1-6 



