THE IRRIGATION AGE. 



1021 



DAM OF THE TWIN FALLS SALMON RIVER 

 LANP AND WATER COMPANY. 



During the month of July the editor of THE IRRIGATION 

 AGE made a general trip throughout Colorado, Wyoming, Utah 

 and Idaho, the principal object of the trip being to cover some 

 territory lying under and depending upon the great Salmon 

 River Dam, from which all of the area known as the Salmon 

 River tract will derive its water. 



This is one of the most wonderful structures of its kind 

 in the world. We are herewith presenting photographs taken 

 by the constructing engineer, Mr. Horn, which will give some 

 fair idea of its magnitude. 



The height of the dam, as shown by the table below, is 

 229.5 lineal feet and it has a total length on the top of 482 

 feet, with a thickness at the base of 119 feet and a top thick- 

 ness of 15 feet. It will be seen by these figures that the dam 

 is no small affair and the estimated cost of the system, in- 

 cluding the dam, is something like $2,500,000. The territory 



to be covered by this water is about 128,000 acres and the 

 cost of the water will be $40 per acre, which is considered a 

 moderate charge when the great cost of construction is con- 

 sidered. 



We are also giving here some figures furnished us by 

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

 Line Railway, Salt Lake City, Utah, which will give some idea 

 of the various projects under course of construction elsewhere 

 in Idaho. Mr. Burley has a system of compiling and keeping 

 record data concerning all development work in Utah; in 

 fact his office is a mine of information to those who need to 

 secure authentic data about any specific project or group of 

 projects. Those who are looking for information may secure 

 it in comprehensive form by getting in touch with Mr. Burley 

 by mail. 



The following information in regard to this dam has been 

 furnished us by Mr. F. C. Horn, construction engineer of the 

 Twin Falls Salmon River Land and Water Co. : 

 Height of dam 229.5 lineal feet 



View from Cliff at West End, Looking Down on Top. Salmon River Dam, May, 1911. 



