CONTENTS 



Page 



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



I INTRODUCTION 7 



II DESCRIPTION OF SEDIMENTS 8 



1. Classification 8 



2. Sieving versus Settling 15 



III SAMPLING 17 



1. Basic Considerations 17 



2. Beach Sampling 17 



3. Borrow Site Sampling 21 



4. Composite Samples 25 



IV BEACH-FILL MODELS 28 



1. Basic Types 28 



2. Fill Factors 29 



3. Renourishment Factor (Rj) 33 



4. Comparison Example 35 



V CONCLUSION 38 



VI SUMMARY AND RECOMMENDATIONS 40 



LITERATURE CITED 42 



APPENDIX 



A MIXING SAMPLES FOR COMPOSITE ANALYSIS 45 



B COMPARISON OF EXISTING BEACH AND POTENTIAL BORROW 



MATERIALS AT OAK ISLAND, NORTH CAROLINA 46 



TABLES 



1 Sediment-size classification schemes 9 



2 Size -frequency data for Figure 1 10 



3 Standard sieve nest 16 



4 Phi means, variances, and standard errors from four profiles at 



Pt. Mugu, California, 1970 20 



5 Phi means, variances, and standard errors from seven profiles at 



Newport Beach, California, 1968 22 



6 Cumulative weight percents for the four samples from Figure 6(b) 



and the computed composite distribution 26 



4 



