CONTENTS - TechReport3aF0006CONVERSION FACTORS, NON-SI TO SI (METRIC) UNITS OF MEASUREMENT - TechReport3aF0007CASE HISTORIES OF CORPS BREAKWATER AND JETTY STRUCTURES NORTH CENTRAL DIVISIONPurpose - TechReport3aF0009Part II: SUMMARY OF CORPS BREAKWATER and JETTY STRUCTURES IN NCDFigure 1. Location of NCE's breakwater and j e t t y p r o j e c t sFigure 2. Location of NCC,s breakwater and jetty projects Figure 3. Location of NCB,s breakwater and jetty projects Figure 4. Profile of the Great Lakes region (lwd referenced to at Father Point, Quebec according to IGLD of 1955)Lake Superior Lake Superior (Cont.)Lake Michigan (Continued) - TechReport3aF0017Lake Michigan (Continued) - TechReport3aF0018Lake Michigan (Continued) - TechReport3aF0019Lake Huron ( Continued )Lake Erie ( Continued )Lake On tarioTable 1. Grand Marais Harbor Breakwaters Grand Marais, MinnesotaTable 1 (Concluded) - TechReport3aF0024Figure 5. Grand Marais Harbor, Minnesota Figure 6 Typical breakwater cross sections, Grand Marais Harbor, MinnesotaTable 2. Two,Harbors Breakwaters Two ( rt Minnesota )figure 7. Two Harbors, Minnesota Figure 8. Typical structure cross sections, Two Harbors, MinnesotaTable 3. Knife River Harbor Breakwater Knife River, MinnesotaFigure 9. Knife River Harbor, MinnesotaFigure 10. Typical structure cross sections, Knife River Harbor, MinnesotaTable 4. Duluth-Superior Harbor Structures Duluth-Superior, Minnesota and WisconsinTable 4 (Concluded)Figure 11. Duluth - Superior, MInnesota and Wisconsin Figure 12. Typical pier cross sections, Duluth - Superior MInnesota and Wisconsin Table 5. Port Wine: Harbor Piers Port Wing, WisconsinFigure 13. Port Wing Harbor, WisconsinFigure 14. Typical structure cross sections, Port Wing Harbor, WisconsinTable 6. Cornucopia Harbor Piers Cornucopia, WisconsinFigure 15. Cornucopia Harbor, WisconsinFigure 16. Typical structure cross sections, Cornucopia Harbor, WisconsinTable 7. Bavfield Harbor Structures Bayfield Harbor, WisconsinFigure 17. Bayfield Harbor, WisconsinFigure 1 . Typical structure cross sections, Bayfield Harbor, WisconsinTable 8. La Pointe Harbor Breakwater Madeline Island, WisconsinFigure 19. La Pointe Harbor, WisconsinFigure 20. Typical breakwater cross sections, La Pointe, WisconsinTable 9. Ashland Harbor Breakwater Ashland, WisconsinFigure 21. Ashland Harbor, WisconsinFigure 22. Typical structure cross sections, Ashland Harbor, WisconsinTable 10. Saxon Harbor Breakwaters Saxon, WisconsinFigure 23. Saxon Harbor, WisconsinFigure 2 4 . Typical breakwater cross sections, Saxon Harbor, WisconsinTable 11. Black River Harbor Breakwaters Gogebic County, MichiganFigure 25. Black River Harbor, MichiganFigure 26. Typical breakwater cross sections, Black River Harbor, MichiganFigure 27. Aerial view of Black River Harbor, Michigan Table 12. Ontonagon Harbor Piers Ontonagon, MichiganTable 12 (Concluded) - TechReport3aF0060Figure 28. Ontonagon Harbor,Michigan Figure 29. Typical pier cross sections, Ontonagon Harbor, MichiganFigure 30. Table 13. Keweenaw Waterway Structures Keweenaw Waterway, MichiganTable 13 (Concluded) - TechReport3aF0065Figure 31. Upper entrance, Keweenaw Waterway, MichiganFigure 32. Upper entrance typical structure cross sections, Kewenaw Waterways Michigan Figure 33. Aerial view of upper entrance to Keweenaw Waterway, MichiganFigure 34. Lower entrance, Keweenaw Waterway, MichiganFigure 35. Lower entrance typical breakwater cross sections Keweenaw Waterway, Michigan Table 14. Lac La Belle Harbor Breakwaters Keweenaw County, MichiganFigure 36. lca La Belle Harbor, Michigan Figure 37. Typical structure cross sections, Lac La Belle Harbor, MichiganFigure 36. Aerial view of Lac La Belle Harbor, MichiganConstruction and Rehabilitation History - TechReport3aF0075Figure 39. Grand Traverse Bay Harbor, MichiganFigure 4 0 . Typical structure cross section, Grand Traverse Bay Harbor, MichiganFigure 41. Aerial view of Grand Traverse Bay Harbor Michigan Table 16. Big Bay Harbor Breakwaters Big Bay, MichiganFigure 42. Big Bay Harbor MichiganFigure 43. Typical breakwater cross sections , Big Bay Harbor, MichiganFigure 44. Aerial view of Big Bay Harbor , Michigan Table 17. Presque Isle Harbor Breakwater Presque Isle, MichiganFigure 45. Presque I s l e Harbor, MichiganFigure 4 6 . Typical breakwater cross sections, Presque Isle Harbor, MichiganFigure 47. Aerial view of Presque Harbor , Michigan Table 18. Marque Harbor Breakwater Marquette, MichiganFigure 48. Marguette Harbor, Michigan Figure 49. Typical breakwater cross Sections Marquette Harbor Michigan Figure 47. Aerial view of Marqutte Harbor , Michigan Table 19. Grand Marais Harbor Piers Grand Marais, MichiganTable 19 (Concluded)Figure 51. Grand Materials Harbor, Michigan Figure 52. Typical structure cross sections , Grand Marais Harbor Michigan Figure 50. Aerial view of Marqutte Harbor , Michigan Table 20. Little Lake Harbor Breakwaters Little Lake, MichiganFigure 54. L i t t l e Lake Harbor, MichiganFigure 55. Typical breakwater cross sections, Little Lake Harbor, MichiganTechReport3aF