Bulletin 831, U. S. Dept. of Agriculture 
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 spillwavs 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 in right 
center. 
