CONTENTS 



Page 



CONVERSION FACTORS, U.S. CUSTOMARY TO METRIC CSI] 6 



I INTRODUCTION 7 



1 . Purpose 1 



2. Terminology 9 



3. Background on Sediment Movement 10 



4. Other Offshore Nourishment Experiments H 



II FIELD PROCEDURE AND DATA ANALYSIS 13 



1. Geographic Setting 13 



2. Disposal Procedure 13 



3. Survey Data 13 



4. Sediment Samples 17 



5. Wave and Current Data 17 



III PHYSICAL CONDITIONS AT STUDY AREA 17 



1 . General 17 



2. Storms 19 



3. Wind-Driven Currents 19 



IV RESULTS 24 



1. Disposed Sediment 24 



2. Short-Term Modification of Disposal Piles 24 



3. Long-Term Modification of the Beach and Nearshore Area . . 24 



V DISCUSSION ON TRANSPORT OF DISPOSED SEDIMENT 35 



1. General 35 



2. Shore-Normal Transport 36 



3. Shore-Parallel Transport 36 



4. Storm Effects ._ 37 



5. Wind- and Wave-Driven Lo'ngshore Currents 38 



6. Overall Transport Pattern and Rate 39 



VI CONCLUSIONS 40 



LITERATURE CITED 42 



APPENDIX TIME-SEQUENCE PROFILES 47 



FIGURES 



1 The split-hull barge Currituak placing dredged sediment in 



shallow water just seaward of the surf zone 8 



2 Coastal zone terminology and principal dynamic zones 9 



3 Location map of study area near New River Inlet, North Carolina. ... 14 



4 Aerial view of New River Inlet and the study area 14 



5 Topography of the study area before disposal 15 



