FIGURE 



PAGE 



3-31 Volume of Core per 100 feet of Structure as a Function 



of Armor Unit Weight and Structure Slope 8-84 



5-32 Cost of Casting, Handling and Placing Concrete Armor 

 Units as a Function of Armor Unit Weight and 

 Structure Slope 8-86 



5-33 Total Cost of 100 feet of Structure as a Function of 

 Tribar Weight, Concrete Unit Weight and Structure 

 Slope 8-81 



5-34 Total Cost of 100 feet of Structure as a Function of 

 Tetrapod Weight, Concrete Unit Weight and Structure 

 Slope 8-90 



5-35 Local Shoreline Alignment in Vicinity of Ocean City, 



Maryland 8-108 



5-36 Dimensionless Longshore Component of Wave Energy as a 

 Function of Deepwater Wave Steepness - Waves from 

 Northeast at Ocean City, Maryland 8-111 



LIST OF TABLES 



TABLE 



5-1 Applicability of R^^jpit Calculations for Various Combi- 

 nations of the Graphic Phi Moments of Borrow and 



Native Material Grain Size Distributions 5-12 



6-1 Beachgrass Planting Summary 6-45 



7-1 Example Determination of Design Wave Heights 7-14 



7-2 Steady Flow Drag Coefficients for Supercritical 



Reynolds Numbers 7-103 



7-3 Experimentally Determined Values of C^ 7-109 



7-4 Example Calculation of Wave Force Variation with Phase 



Angle. 7-117 



7-5 Comparison of Measured and Calculated Force 7-125 



7-6 Suggested K^ Values for Use in Determining Armor Unit 



Weight 7-170 



7-7 U/lij-)^Q and K^j as a Function of Cover Layer Damage and 



Type of Armor Unit 7-178 



7-8 Types of Concrete Armor Units 7-183 



7-9 Use of Concrete Armors in the United States 7-192 



7-10 Layer Coefficient and Porosity for Various Armor Units . . 7-196 



7-11 Quarrystone Weights and Dimensions 7-198 



7-12 Effect of Ice on Marine Structures 7-207 



7-13 Unit Weights and Internal Friction Angles 7-211 



7-14 Coefficients and Angles of Friction 7-212 



