Bulletin 1026, U. S. Dept. of Agriculture. 



Plate XVI. 



Fig. I. — Halligan Dam of the North Poudre System. Depth of I>2 Feet 



ON the Spillway. 



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stjs'r^"^-*''^ -"■ye'*.*'' ■-*' '■ ' ■.~'^^*^- '- ■.-. :^.>* 



^ifl 



r* 



4». 'fctr^ • . ^- 



^'5^ 



Fig. 2. — Effect of Wave Action on the Inner Slope of the Dam of North 

 POUDRE Reservoir No. 15. 



