groin. The implication of this boundary condition is that a portion of the 

 calculated sand at the boundary can pass into or out of the modeled reach, 

 provided that the calculated maximum depth of longshore transport at the given 

 time step exceeds the 3 -ft depth at the tip of the jetty. The northern 

 boundary condition at the east jetty of Anaheim Bay was simulated as a long 



Table 3 

 Summary of Modeled Design Alternatives (Preliminary Study) 





Design 



Entrance Channel 



Detached 



Sand 



Alternative No. 



Location and 



Width 



Breakwater 

 per SLC design 



Management 



I 1 



Proposed Site, 



800 ft 



No 



2 



Proposed Site, 



1000 ft 



per SLC design 



No 



3 



Warner Avenue, 



800 ft 



per SLC design 



No 



4 



South of Site, 



800 ft 



per SLC design 



No 



5 



Proposed Site, 



800 ft 



Dog- leg breakwater 

 attached to north 

 jetty 



No 



6 



Proposed Site, 



800 ft 



per SLC design 



Yes 2 



1) Design Alternative No. 1 was simulated five times with the 



following variations in the input wave conditions: 

 Run la. Without modification of input wave conditions. 

 Run lb. Increased wave height by 15%. 

 Run lc . Decreased wave height by 15%. 



Run Id. Wave angle rotated 10 deg south (counter-clockwise). 

 Run le . Wave angle rotated 10 deg north (clockwise). 



2) Design Alternative No. 6 was run seven times: 



Run 6a. Without modification of input wave conditions, 1 million 



cu yd feeder beach down drift of inlet. 

 Run 6b. Wave angle rotated 10 deg north (clockwise), 1.5 million 



cu yd feeder beach down drift of inlet. 

 Run 6c. Wave angle rotated 10 deg north (clockwise), 1.5 million 



cu yd feeder beach down drift of inlet. 

 Run 6d. Without modification of input wave conditions, 1 million 



cu yd feeder beach down drift of inlet, 2.65 million cu yd 



feeder beach at Surf side -Sunset . 

 Run 6e . Without modification of input wave condition, 1 million 



cu yd feeder beach down drift of inlet, 4.65 million cu yd 



feeder beach at Surf side -Sunset. 

 Run 6f. Wave angle rotated 10 deg. north (clockwise), 1.5 million 



cu yd feeder beach down drift of inlet, 4.65 million cu yd 



feeder beach at Surf side-Sunset. 

 Run 6g. Wave angle rotated 10 deg. north (clockwise), 2 million 



cu yd feeder beach down drift of inlet, 4.65 million cu yd 



feeder beach at Surf side -Sunset . 



71 



