CALIFORNIA FISH AND GAME 



117 



necessarily passes through the valve. This flow continues after water 

 has receded below the spillway level and assures a continuous discharge. 



The type of construction of these dams is determined by the 

 character of the lake outlet, but in general it consists of a rock and 

 concrete wedge built into the narrow lake outlet. Only lakes where the 

 outlet is narrow and wedge-shaped are selected for storage in order 

 that material requirements shall be limited. Rock walls are built up 

 to the required height and each side of the wall is then tied in with 

 concrete. Walls at the base are one-half as thick through as the height 

 of the dams and taper to twenty-four inches at the crest. The valves 

 are placed in the lower center with the locking control stem extending 

 to the crest of dam. 



From the nature of this project and its indicated success, it will 

 likely become an example of what can be accomplished in the high 



Fig. 27. Huckleberry Lake. Looking upstream. Photo by Louis Jensen. 



granite areas of the Sierra in water storage and fish conservation. 

 F'rom its permanency, it insures economical administration and is 

 undoubtedly an outstanding conservation achievement. If the recom- 

 mended 1934 construction is done, the Cherry Creek area project can 

 be considered completed. Additions and improvements to the system 

 will present themselves from time to time, but the main objective, 

 insuring a constant flow of water in Cherry Creek and its tributaries 

 will have been accomplished, and about 70 miles of live trout stream 

 restored. 



During the 1933 season, a C.C.C. subcamp was established on the 

 upper Clavey River at Bear Lake in Tuolumne County. This camp, 

 under the jurisdiction of Supervisor Hall, constructed a rock-concrete 

 dam at the outlet of Bear Lake and, at this date, September 23, 1933, 

 is engaged in constructing another at Y Meadows, 3 miles above. The 

 combined storage of these two projects will be about 500 acre-feet. 



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