CONTENTS 



FIGURES — Continued 



Page 



24 Typical sediment budget conditions after weir- jetty construction 44 



25 Weir-jetty construction sediment budget for strategy 1 45 



26 Weir- jetty construction sediment budget for strategy 2 46 



27 Weir-jetty construction sediment budget for strategy 3 46 



28 Weir- jetty construction sediment budget for strategy 4 47 



29 Sand storage on updrift and downdrift beaches near a weir jetty 48 



30 Time history of longshore transport rate and mass curve 50 



31 Longshore transport mass curves for a site where reversals are 



seasonal and a site where reversals are random.. 50 



32 Weir length in the presence of a well-defined offshore bar 51 



33 Weir length as established by average annual breaker height 52 



34 Changes in updrift profile near weir at Murrells Inlet, 



South Carolina 54 



35 Beach profiles about 2 miles updrift of Murrells Inlet, 



South Carolina 54 



36 Updrift beach profile superimposed on the profiles near Murrells 



Inlet, South Carolina 55 



37 Extrapolation of shoreline updrift of Murrells Inlet 56 



38 Definition sketch of the Pelnard-Considere model of shoreline 



evolution near a groin or jetty 57 



39 Shoreline evolution near a groin 58 



40 Sand bypassing around a groin • 58 



