Figure 1. Location of Cape Verde
Figure 2. Cape Verde Islands
Purpose - 3_trchl-98-220010
Figure 3. Existing site location map
Figure 4. Existing structure
Table 1. Model-Prototype Scale Relations (1:48.4 scale)
Table 2. Prototype and Model Material Sizes - 3_trchl-98-220014
Figure 5. Three-dimensional stability model
Figure 6. Three-dimensional model boundaries and wave gauge locations
Figure 7. Hs at -21.3 m CD versus generator stroke, 13-sec waves
Figure 9. Hs at -21.3 m CD versus generator stroke, 19-sec waves
Table 3. Stability Study Wave Conditions (concluded)
Reporting Model Observations - 3_trchl-98-220020
Results - 3_trchl-98-220021
Figure 10. Elements of plan 1
Plan 1B, Plan 1C
Figure 11. Elements of plan 1A
Figure 12. Elements of plans 1B and 1C
Plan 2, Plan 2A
Figure 13. Elements of plan 2
Figure 14. Elements of plan 2A
Plan 2B, Plan 2C, Plan 2D
Figure 15. Elements of plan 2B
Figure 16. Elements of plans 2C and 2D
Overtopping
Figure 17. Wave overtopping at trunk, all plans
Figure 19. Wave overtopping at breakwater head, plan 2 series waves
Risk Considerations
Armor Unit Selection
Summary - 3_trchl-98-220037
Figure 20. Example of toe trench constructed on rocky bottom
Figure 21. Example of toe trench constructed on sandy bottom
References - 3_trchl-98-220040
Appendix A. Photographs
Photo A1. Sea-side view of plan 1 before testing
Photo A2. Sea-side view of plan 1 breakwater head before testing
Photo A3. View of plan 1 breakwater head before testing
Phot A4. Seaside view of plan 1 after testing with 13-sec, 3-m waves
Phot A5. Sea-side view of plan 1 breakwater head after testing with 13-sec, 3-m waves
Photo A6. View of plan 1 breakwater head after testing with 13-sec, 3-m waves
Photo A7. Sea-side view of plan 1A before testing
Photo A8. Sea-side view of plan 1A breakwater head before testing
Photo A9. View of plan 1A breakwater head before testing with 16-sec, 3.7-m waves
Photo A10. Sea-side view of plan 1A after testing
Photo A11. Sea-side view of plan 1A breakwater head before testing with 16-sec, 3.7-m waves
Photo A12. View of plan 1A breakwater head before testing with 16-sec, 3.7-m waves
Photo A13. Sea-side view of plan 1B after testing with 17-sec, 5.2-m waves
Photo A14. Sea-side view of plan 1B, profiles 4 through 7, after testing with 17-sec, 5.2-m waves
Photo A15. Sea-side view of plan 1B breakwater head before testing with 17-sec, 5.2-m waves
Photo A16. View of plan 1B breakwater head before testing with 17-sec, 5.2-m waves
Photo A17. Sea-side view ofplan 1C after testing with 19-sec, 6.7-m waves
Photo A18. Sea-side view of plan 1C breakwater head before testing with 19-sec, 6.7-m waves
Photo A19. View of plan 1C breakwater head after testing with 19-sec, 6.7-m waves
Photo A20. Sea-side iew of plan 1C after repeat testing with total storm sequence
Photo A21. Sea-side view of plan 1C breakwater head after repeat tesing with total storm sequence
Photo A22. View of plan 1C breakwater head after repeat esting with total storm sequence
Photo A23. Sea-side view of plan 2 breakwater trunk before testing
Photo A25. View of plan 2 breakwater head before testing
Photo A27. View of plan 2 breakwater trunk, profiles 6 to 8, after testing with 15-sec and 16-sec waves
Photo A28. Sea-side view of plan 2A breakwater trunk before testing
Ohoto A29. Sea-side view of plan 2A breakwater head before testing
Photo A30. View of plan 2A breakwater head before testing
Photo A31. Sea-side view of plan 2A breakwater trunk after testing with total storm sequence
Photo A32. Sea-side view of plan 2A breakwater head after testing with total storm sequence
Photo A33. View of plan 2A breakwater head after testing with total storm sequence
Photo A34. Sea-side view of plan 2B breakwater trunk after testing with total storm sequence
Figure A35. Sea-side view of plan 2B breakwater after testing with total storm sequence
Photo A36. View of plan 2B breakwater head after testing with total storm sequence
Photo A37. Sea-side view of plan 2C breakwater trunk before testing
Photo A38. Sea-side view of plan 2C breakwater head before testing
photo A39. View of plan 2C breakwater head before testing
Photo A40. Sea-side view of plan 2C breakwater trunk after testing with waves above the 3.7-m height
Photo A41. Sea-side view of plan 2C breakwater head after testing with waves above the 3.7-m height
Photo A42. View of plan 2C breakwater head after testing with waves above the 3.7-m height
Photo A43. Sea-side view of plan 2D, profiles 4 through 6, before testing
Photo A45. View from north of plan 2D breakwater trunk after testing with total sequence
Appendix B. Notation
Appendix B. Notation (cont.)
REPORT DOCUMENTATION PAGE - 3_trchl-98-220086
3_trchl-98-22
Figure 2. Cape Verde Islands
Purpose - 3_trchl-98-220010
Figure 3. Existing site location map
Figure 4. Existing structure
Table 1. Model-Prototype Scale Relations (1:48.4 scale)
Table 2. Prototype and Model Material Sizes - 3_trchl-98-220014
Figure 5. Three-dimensional stability model
Figure 6. Three-dimensional model boundaries and wave gauge locations
Figure 7. Hs at -21.3 m CD versus generator stroke, 13-sec waves
Figure 9. Hs at -21.3 m CD versus generator stroke, 19-sec waves
Table 3. Stability Study Wave Conditions (concluded)
Reporting Model Observations - 3_trchl-98-220020
Results - 3_trchl-98-220021
Figure 10. Elements of plan 1
Plan 1B, Plan 1C
Figure 11. Elements of plan 1A
Figure 12. Elements of plans 1B and 1C
Plan 2, Plan 2A
Figure 13. Elements of plan 2
Figure 14. Elements of plan 2A
Plan 2B, Plan 2C, Plan 2D
Figure 15. Elements of plan 2B
Figure 16. Elements of plans 2C and 2D
Overtopping
Figure 17. Wave overtopping at trunk, all plans
Figure 19. Wave overtopping at breakwater head, plan 2 series waves
Risk Considerations
Armor Unit Selection
Summary - 3_trchl-98-220037
Figure 20. Example of toe trench constructed on rocky bottom
Figure 21. Example of toe trench constructed on sandy bottom
References - 3_trchl-98-220040
Appendix A. Photographs
Photo A1. Sea-side view of plan 1 before testing
Photo A2. Sea-side view of plan 1 breakwater head before testing
Photo A3. View of plan 1 breakwater head before testing
Phot A4. Seaside view of plan 1 after testing with 13-sec, 3-m waves
Phot A5. Sea-side view of plan 1 breakwater head after testing with 13-sec, 3-m waves
Photo A6. View of plan 1 breakwater head after testing with 13-sec, 3-m waves
Photo A7. Sea-side view of plan 1A before testing
Photo A8. Sea-side view of plan 1A breakwater head before testing
Photo A9. View of plan 1A breakwater head before testing with 16-sec, 3.7-m waves
Photo A10. Sea-side view of plan 1A after testing
Photo A11. Sea-side view of plan 1A breakwater head before testing with 16-sec, 3.7-m waves
Photo A12. View of plan 1A breakwater head before testing with 16-sec, 3.7-m waves
Photo A13. Sea-side view of plan 1B after testing with 17-sec, 5.2-m waves
Photo A14. Sea-side view of plan 1B, profiles 4 through 7, after testing with 17-sec, 5.2-m waves
Photo A15. Sea-side view of plan 1B breakwater head before testing with 17-sec, 5.2-m waves
Photo A16. View of plan 1B breakwater head before testing with 17-sec, 5.2-m waves
Photo A17. Sea-side view ofplan 1C after testing with 19-sec, 6.7-m waves
Photo A18. Sea-side view of plan 1C breakwater head before testing with 19-sec, 6.7-m waves
Photo A19. View of plan 1C breakwater head after testing with 19-sec, 6.7-m waves
Photo A20. Sea-side iew of plan 1C after repeat testing with total storm sequence
Photo A21. Sea-side view of plan 1C breakwater head after repeat tesing with total storm sequence
Photo A22. View of plan 1C breakwater head after repeat esting with total storm sequence
Photo A23. Sea-side view of plan 2 breakwater trunk before testing
Photo A25. View of plan 2 breakwater head before testing
Photo A27. View of plan 2 breakwater trunk, profiles 6 to 8, after testing with 15-sec and 16-sec waves
Photo A28. Sea-side view of plan 2A breakwater trunk before testing
Ohoto A29. Sea-side view of plan 2A breakwater head before testing
Photo A30. View of plan 2A breakwater head before testing
Photo A31. Sea-side view of plan 2A breakwater trunk after testing with total storm sequence
Photo A32. Sea-side view of plan 2A breakwater head after testing with total storm sequence
Photo A33. View of plan 2A breakwater head after testing with total storm sequence
Photo A34. Sea-side view of plan 2B breakwater trunk after testing with total storm sequence
Figure A35. Sea-side view of plan 2B breakwater after testing with total storm sequence
Photo A36. View of plan 2B breakwater head after testing with total storm sequence
Photo A37. Sea-side view of plan 2C breakwater trunk before testing
Photo A38. Sea-side view of plan 2C breakwater head before testing
photo A39. View of plan 2C breakwater head before testing
Photo A40. Sea-side view of plan 2C breakwater trunk after testing with waves above the 3.7-m height
Photo A41. Sea-side view of plan 2C breakwater head after testing with waves above the 3.7-m height
Photo A42. View of plan 2C breakwater head after testing with waves above the 3.7-m height
Photo A43. Sea-side view of plan 2D, profiles 4 through 6, before testing
Photo A45. View from north of plan 2D breakwater trunk after testing with total sequence
Appendix B. Notation
Appendix B. Notation (cont.)
REPORT DOCUMENTATION PAGE - 3_trchl-98-220086
3_trchl-98-22
