Table 6 



Berkeley Marina Breakwater 



Berkeley Marina, San Francisco Bay, California 



Date(s) 

 1936 



1965 



1975 



1980 

 1986 



Construction and Rehabilitation History 



The existing small-craft harbor was constructed from dredged fill 

 and solid waste disposal under a Federal Public Works Administra- 

 tion Program. The harbor entrance was approximately 300 ft wide. 



A 725-ft-long detached rubble-mound breakwater (Figure 11) was con- 

 structed by the CE bayward of the harbor entrance to protect it 

 from ocean swells from west-southwest. The crest el of the struc- 

 ture was +13 ft mllw, and it was constructed with side slopes of 

 1V:1.5H. Construction costs were approximately $311,000. 



Waves, up to 5 ft in height from west-northwest, entered the harbor 

 and caused extensive damages to the berthing facility and small 

 craft moored there. Prior to this date, waves from this direction 

 had resulted in damages in the harbor on several occasions. 



Construction of a 440-ft-long concrete sheet-pile breakwater was 

 completed (Figure 11). The structure's crest was installed at an 

 el of +15 ft mllw. 



No maintenance or repairs have been required since breakwater 

 construction, and the structures are in good condition. 



Figure 11. Berkeley Marina, San 

 Francisco Bay, California 



26 



