illustrates the storm surge hydrographs for these two storms, the 23 August 

 1933 hurricane and the 7 March 1962 extratropical event. 



11. Because the approach used to choose design storm conditions was 

 deterministic, attaching a frequency of occurrence to the overtopping calcula- 

 tions could only be accomplished through the development of an accompanying 

 stage/frequency relationship based on a probabilistic model. However, the 

 selected storms were the worst of record (record length is 50 years) , 



II 



