CONTENTS 

 TABLES- -Continued 



Page 



21 Large-scale tests of runup on smooth slope roughened with 



one layer of 0.4-millimeter sand; 1 on 3 structure slope . . . 110 



22 Scale effects for quarrystone rubble mound with core 



much below SWL 115 



23 Scale effects for quadripod rubble mound 116 



FIGURES 



1 Mean monthly nearshore wave periods (including calms) for 



five coastal segments 14 



2 Definition sketch of variables applicable to wave runup .... 16 



3 Example of runup data plotted to show trends of lines of 



d /gT 2 and the line of complete breaking 21 



4 Empirical curves of minimum wave steepness for complete wave 



breaking at a specified smooth slope and relative depth .... 22 



5 Values of q for equation (8) 



24 



6 Flow chart for runup on smooth structure slope fronted by 



horizontal bottom 25 



7 Conceptual sketch of runup data for constant values of 



d s /gT 2 and for a fixed slope 31 



8 Sketch of lines of dg/H^ related to lines of d s /gT 2 



for a fixed slope 31 



9 Relative runup comparisons between smooth slopes and 



permeable rubble-mound slopes; d g /H' > 3.0 32 



10 Schematic trends of d s /H^ for steep slopes on a 



sloping beach 32 



11 Regions of breaking waves for depth-related instabilities ... 35 



12 Sample lines of constant d g /gT 2 for runup on structures 



on sloping and flat beaches 36 



13 Conditions for wave breaking on beach slope in front 



of structure 37 



