Bulletin 831, U. S. Dept. of Agriculture. 



Plate II. 



Fig. I. — Headworks, East Park Supply Canal, Orland Project, California. 



Shows diversion of part of waters of Big Stoney Creek into East Park Reservoir. Note gate control 



of supply. 



Fig. 2. — Roosevelt Dam, Arizona. 



The two overflow spillways are shown at each end of the dam. Water for irrigation is discharged 

 through the tunnel shown on the left and through the turbines of the power plant shown m right 

 center. 



