THE IRRIGATION AGE. 



1023 



Discharging capacity of tunnel is 1,250 cubic feet per sec- 

 ond (562,500 gallons per minute). 



Available storage capacity of reservoir, 180,000 acres feet 

 (58,806,000,000 gallons). 



Acres under canal system, about 80,000. 



Acres entered under Carey act June 1st, 1908, is 72,000. 



Length of main canal 11 miles 



Length of lateral canals 234 miles 



Total 245 miles 



Cost of dam and tunnels, approximately $1,650,000 



Cost of canals and canal system, approximately 850,000 



Total cost, approximately $2,500,000 



This company controls also the electric water power of 

 Shoshone Falls for pumping plants, which will reclaim an ad- 

 ditional 10,000 acres on the north side and 3,700 acres on the 

 south sde. 



Location of project, Twin Falls County, Idaho. 



Location of headquarters, Twin Falls, Idaho. 



Location of dam and reservoir, seven miles southwest of 

 Rogerson. 



Source of water supply, Salmon River. 



Estimated cost of system, $2.500,000. 



Approximate acreage, 128,000. 



Cost of water per acre, $40. 



Mr. I. B. Perrine, vice-president, Twin Falls, Idaho. 



Mr. F. C. Horn, project engineer, Rogerson, Idaho. 



Mr. D. E. Burley, general passenger agent of the Oregon 

 Short Line Railroad, Salt Lake City, Utah, adds the follow- 

 ing information : 



Cost of water per acre, $25 to $50. 



Mr. I. W. McConnell, manager, Richfield, Idaho. 



Mr. W. L. Gorton, project engineer, Richfield, Idaho. 



Kings Hill Irrigation and Power Company. 

 Gravity. 



Location of project, Lincoln, Owyhee and Elmore coun- 

 ties, Idaho. 



Location of headquarters, Glenns Ferry, Idaho. 



Source of water supply, Malad River. 



Estimated cost of system, $520,000. 



Approximate acreage, 18,000. 



Cost of water per acre, $65. 



Extension of the above; same source of water supply: 



Estimated cost, $625,000. 



Approximate acreage, 9,800. 



Cost of water per acre, $65. 



Twin Falls-Oakley Land and Water Company. 

 Reservoir and Gravity. 



Location of project, Cassia County, Idaho. 

 Location of headquarters, Burley, Idaho. 

 Location of dam and reservoir, five miles north of Oakley, 

 Idaho. 



Source of water supply, Goose Creek. 

 Estimated cost of system, $1,750,000. 

 Approximate acreage, 44,000. 

 Cost of water per acre, $65. 



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



Idaho Irrigation Company. 



Reservoir and Gravity. 



Location of project, Lincoln County, Idaho. 

 Location of headquarters, Richfield, Idaho. 

 Location of reservoir, twenty-five miles north and west 

 of Richfield. 



Source of water supply, Big Wood River. 

 Estimated cost of system, $3,500,000. 

 Approximate acreage, 160,000. 



.The North Side Twin Falls project is the most impor- 

 .tant of course on account of the acreage reclaimed, but the 

 Twin Falls-Salmon project would be of much greater interest 

 to the average reader or tourist, on account of its engineering 

 features, and the great dam, which is about 229.5 feet high 

 of solid concrete, being probably one of the highest construc- 

 tion of its character in the world. 



The accompanying half tones illustrate the Salmon River 

 Dam and its site in a very thorough and clear manner. 



