J 



I 



SHORE 



PLAN VIEW 



Figure 2. Concrete monolith structure constructed on south jetty in 191 1 



was specified for the south jetty, but construction techniques and specifications were 

 the same. The north jetty had the following reconstruction design: 



Ocean-side slope 



1V:1.5H 



Channel-side slope 



1V:1.5H 



Shape (cross sectional) 



Trapezoidal 



Crest width 



+12.2 m (+40 ft) 



Crest elevation 



+4.3 m (+14 ft) 



With the exception of repairing a breach in the south jetty in 1 920 and repairing 

 some north spit shore protection in 1 922, no significant work was done on the struc- 

 tures until 1925. Between 1925 and 1927, parapet walls were added to each jetty on 

 the south sides of the caps due to wave exposure. In addition, mass concrete was 



Chapter 1 Introduction 



