IRRIGATION AND HYDRO-ELECTRIC DEVELOPMENTS 

 spillway and outlet works. There have already 

 been expended on the Truckee-Carson Project about 

 $5,000,000. 



Source of water: Truckee and Carson rivers. 



Reservoirs: Limited control of Lake Tahoe and 

 Lahontan on the Carson River. The Lahontan Dam 

 of earth and gravel will be 124 feet high, 1600 feet 

 long and will require 770,000 cubic yards of ma- 

 terial in its construction. Its water surface area 

 will be 11,000 acres and its storage capacity 290,000 

 acre feet. The estimated cost is about $8,500,000. 

 The first unit being brought under irrigation is 

 96,500 acres and the total area which it is hoped 

 ultimately to irrigate, 206,000 acres. About 50,000 

 acres are now covered by water right application 

 and rental contracts. 



Orland Project. At Orland, in California, some 

 of the results of co-operation with the United States 

 may be seen from the car windows. At Orland 

 the soil is gravelly, and owing to the scant rain- 

 fall, only about ten inches in an ordinary year, it 

 is unproductive under natural conditions. The 

 United States Reclamation Service was requested 

 to undertake the construction of irrigation works. 

 Finding that Stony Creek, under some regulation 

 by a storage dam at East Park, would afford ample 

 water and that the soil would respond, the work 

 was undertaken. Lands that had a speculative value 

 of about $20 per acre are now worth several hun- 

 dred dollars per acre, and comfortable homes have 

 been established where but a few years ago the 

 land was used for grazing and here and there for 

 a little unprofitable dry farming. 



Orland, population about 1200. 



Source of water : Stony Creek. A storage reser- 

 voir has been constructed at East Park. The dam 

 at this point is of concrete. Its maximum height 

 is 139 feet, the length of its crest 250 feet. It 

 contains 12,200 cubic yards of concrete. The ca- 

 pacity of the reservoir formed by it is 45,600 acre 

 feet. About 14,000 acres are to be irrigated by 

 this project, tjie irrigable land being located on 

 both sides of Stony Creek. The total estimated 

 cost of the project is about $600,000. 



Klamath Project. In southern Oregon, lapping 

 over into California, is another enterprise under- 

 taken with some success by the United States 

 Reclamation Service. The problem here was to 

 utilize for irrigation the water of the Upper Klam- 

 ath Lake, to supplement the water supply of this 

 lake with water from a reservoir constructed at 

 Clear Lake, and to reclaim by drainage, or by the 



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