13 

 12 

 11 











































































CD 

 Z 9 



£ 8 



CD 

 CO 



s 



4 

 3 

 2 





































































































































































e 





















RETURN PERIOD, YRS 



STAGE-FREQUENCY 

 STILL UATER LEVEL 

 BROAD SOUND TUNA 



Figure 47. Still-water level stage-frequency curve, Broad Sound Tuna 



14 





























































o ie 



CD 







































ll 8 







































LJ 7 



CD 



S 6 

 CO 



5 



4 

 3 

 2 



































































































































RETURN PERIOD. YRS 



STAGE-FREQUENCY 



STILL UATER LEUEL 



OAK ISLAND 



Figure 48. Still-water level stage-frequency curve, Oak Island 



76 



