Table 12 



Santa Cruz Jetties 



Santa Cruz Harbor, California 



Date(s) Construction and Rehabilitation History 



1963 Construction of two rubble-mound jetties at the site (Figure 17) 



was completed along with dredging of channels and a turning basin. 

 The east and west jetties were 850 and 1,125 ft long, respectively, 

 with crest els ranging from +12 ft to +16 ft mllw. Side slopes 

 were 1V:1.5H on the channel side and 1V:2H on the bay side of the 

 jetties. Both structures were rubble mound with 3- to 15-ton armor 

 stone. The outer half of the west jetty on the bay side is pro- 

 tected by two layers of 25-ton quadripods. An aerial photograph of 

 the jetties is shown in Figure 18. 



1983 The west jetty was sealed in an effort to minimize shoaling in the 

 channel. This sealing was not very effective, and dredging re- 

 quirements were excessive following storms of 1983. A fixed sand 

 bypassing plant has subsequently been authorized and constructed. 

 The Santa Cruz Harbor District and the CE purchased (through cost 

 sharing) a dredge to maintain the harbor entrance. The Harbor 

 District is now responsible for maintenance dredging. 



1986 The jetties are in good condition, and there are no records of 

 jetty maintenance since their construction. 



33 



