Bulletin 831, U. S. Dept. of Agriculture. 
PLATE XI 
Fig. !. — Automatically Operated Gate with Siphon Spillway on Each End. 
Located on main distributing canal, South San Joaquin Irrigation District, near Kipon, Calif. 
Fig. 2. — Check Gates and Intake of Siphon Spillway, Orland Project, 
California. 
Intake lip of siphon is submerged and only air inlet shows at left of picture. Note close control 
of water level indicated by water line on structures. 
