100 



80 



60 



40 



20 



Waterway Sides 



Mean, cm/s 

 Existing 18.1 

 Proposed 7.8 



252 254 256 258 260 262 264 266 268 270 272 

 Year Day 1997 



Figure 42. Comparison of currents at the watenway sides of Sundown Islands 



10 



-10 



-20 



© -30 

 o 



-40 



^ -50 



O 



-60 



-70 



-80 



Waterway Side 



252 254 256 258 260 262 264 266 268 270 272 

 Year Day 1997 



Figure 43. Time series of current differences calculated on the watenway side of 

 Sundown Island 



44 



Chapter 3 Circulation Modeling 



