CALIFORNIA FISH AND GAME 



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if they are of the usual broken granite construction that board walks 

 be placed along them. These would probably be washed away 

 periodically but could be replaced. They would not need to be elabo- 

 rate, anything is far better than climbing over broken granite. 



Bulkheads 



We have heard proposals to bulkhead the bay shore in various 

 places. In any M'ild life preserve, bulkheading should be used as 

 sparingly as possible, and above all things the edges of the marshes 

 should not be bulkheaded. 



Fig. 3. Part of the eastern half of Mission Bay. One of the causeway bridges is at 

 the left; Pacific Beach in the background. Photo by authors, November, 1933. 



The main channel hugs the western shore for a half mile or so 

 and is said to be cutting the sand away. Bulkheads may be necessary 

 here and would not be particularly objectionable, but we recommend 

 that groins be seriously considered before any construction is started. 



Roads 



A highway could be built to advantage along the edge of the pro- 

 posed San Diego River flood control project. Because of the effect 

 on the wild life of the marsh, we recommend that no other roads be 

 built between the flood control channel and the bay. If any are built, 

 all but the very smallest sloughs should be bridged and these should 

 be provided with large culverts. Under no circumstances should any 

 sloughs be blocked. 



