Table 6 (Concluded) 



Date(s) Construction and Rehabilitation History 



1977 Repair of west breakwater head and trunk; 257 30-ton and 291 



20-ton reinforced dolosse placed (two layers over the 33-ton 

 tetrapods) on sea-side quadrant of head and sea-side slope of 

 trunk, respectively (not model tested) . 



1977 Repair of east breakwater head and trunk; 610 30-ton reinforced 

 dolosse placed in a double layer over 33-ton tetrapods on sea- 

 ward quadrant of the head; 164 20-ton reinforced dolosse placed 

 in a double layer on sea-side slope of trunk beginning at the 

 shoreward end of the 35-ton tribars. Beginning at the point 

 where the 20-ton dolosse ended and extending shoreward, two 

 layers of 6-ton unreinforced dolosse placed (455 units) on sea- 

 side slope of the trunk (repairs not model tested) , 



1982 Rehabilitation of sea- and harbor-side slopes and crown of the 

 west breakwater trunk; 170 11-ton unreinforced tribars placed 

 on sea-side slope between sta 17+75 and sta 19+48; 10 25-ton 

 tribars placed as a buttress on the shoreward side of the 

 11-ton tribars (sta 17+50 to sta 17+75); 540 6.5-ton unrein- 

 forced tribars placed on harbor side slope between sta 17+75 

 and sta 22+38. Concrete rib cap added to crown between 

 sta 17+75 and sta 19+35. Rehabilitation of the east breakwater 

 harbor-side slope and crown; 755 9-ton tribars placed on 

 harbor-side slope (sta 19+50 to sta 27+80) ; concrete ribs added 

 to crown (sta 19+50 to sta 23+80). All tribars used one layer 

 uniform placement. Rehabilitation work model tested (Markle 

 1982). 



