1022 



THE IRKIGAT10N AGE. 



Length of dam on top 482 lineal feet masonry forming a monolith in the Little Salmon River Can- 

 Length of dam at base 320 lineal feet yon. 



Thickness of dam at base 119 lineal feet Length of tunnel leading from reservoir to head of main 



Thickness of dam at top 15 lineal feet canal is 3,600 lineal feet and is lined with concrete masonry. 



Volume of dam, 152,000 cubic yards of cyclopean concrete Area of tunnel section is 125 square feet. 



Canon Before Any Work Was Done. Salmon River Dam. 



View Down Stream, April, 1910. Salmon River Dam. 



