Table 22 



Redondo Beach Breakwaters 



Redondo Beach King Harbor, California 



Date(s) Construction and Rehabilitation History 



1938 Construction of a 4,285-ft-long permeable, rubble-mound breakwater 

 (Figure 28) was completed. 



1950 The breakwater became a Federal project, and improvements were 

 authorized. 



1958 Ten-ton capstones were placed on the ocean side of the breakwater 

 on a 1V:2H slope, and the crest was raised to +14 ft mllw and in- 

 creased to 16 ft in width. Thirteen- ton capstones were used on the 

 breakwater between sta 36+00 and 52+00. A 600-ft-long south break- 

 water with a crest el of +14 ft was constructed. The structure has 

 a 16-ft crest width, and side slopes were 1V:2H on the sea side and 

 1V:1.5H on the harbor side. 



1960 Minor repairs to the north breakwater (from a storm in 1959) were 

 completed. 



1963 Storms demonstrated the inadequacy of the north breakwater for 

 protecting small craft within the Harbor. While doing only minor 

 damage to the breakwater, damage to small boats and Harbor 

 facilities amounted to $431,000. 



1964 The north breakwater (between sta 15+50 and 36+00) was modified. 

 The structure crest el was raised to +22 ft mllw at this loca- 

 tion. Stones, ranging from 2.5 to 10 tons, were placed on the 

 harbor side of the breakwater on a slope of 1V:1.5H (Figure 28). 



1978- Storms of 1978 and 1980 resulted in damage to the north breakwater 

 1980 in nine areas with major voids occurring at sta 16+00 and 22+00. 



1982 As a result of the damages in 1978 and 1980, the north breakwater 

 was repaired at a cost of $304,000. 



1983 Storms resulted in significant damage at several locations along 

 the north breakwater. The most significant was a breach 70 ft 

 long, just south of the curved portion. Repair work was completed, 

 and approximately 5,300 tons of new capstone and 1,700 tons of 

 corestone were utilized. At seven additional locations, about 

 4,000 tons of capstone were replaced. The repair work cost 

 approximately $400,000. 



1986 The breakwaters presently are in satisfactory condition. 



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