Page 33

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Title
Page 33
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Colorado River problem
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http://digital.library.unlv.edu/u?/dig,8
Full text
336 THE COLORADO RIVER PROBLEM of such a demand for power is certainly great enough to justify taking it into account in planning the development of the Colorado, to the extent of insuring the ultimate development of the greatest possible power from the Canyon Section commensurate with the higher uses of the water. This means that projects should be planned to use all available head, that storage for equalization of flow should be provided above the Canyon Section, and that storage for re-regulation of flow for irrigation in the Lower Basin should be provided at the bottom of the Canyon Section. Storage located at the bottom of the Canyon Section for flood protection of the Lower Basin does not conform to the requirement that storage for equalization of flow should be above the Canyon Section. It should be built, therefore, only to the minimum capacity that will give relief, especially as storage above the canyon may be relied on to give additional relief in the near future, and it should be located, if practicable, so that later it will provide for re-regulation of flow for irrigation in the Lower Basin. Aside from the Flaming Gorge and Diamond Creek developments on the Colorado, any developments of power in the immediate future must depend on Southern California for a market, and the size of the development should be limited to what that market can absorb with certainty, in order to keep the carrying charges at a minimum during the periods of construction and loading. Table 12 has been compiled from information in the files of the Federal Power Commission to show the possible hydro-electric development in Southern California. The projected developments of the San Joaquin Light and Power Company are on the North Fork of Kings River. Expenditures on these works have been commenced on a scale that will probably make necessary their completion in spite of the fact that their estimated cost is more than $200 per h.p. installed. The projected developments of the Southern California Edison Company will probably go forward up to 1935. The installed capacity for that year includes what are known as the West Side Developments of the San Joaquin River. They will be expensive, costing probably more than $200 per h.p. installed, and may be deferred if Colorado River power becomes available. The proposed developments of the City of Los Angeles are in two regions, namely, Owens Valley and South Fork of Kings River. The developments in the latter region, at least, may be deferred if Colorado power becomes available. Table 13 shows the power generated in Southern California by the four principal producers. Their combined load has grown at an average rate of about 13% compounded annually. Nearly 80% of the power has been hydro-power and has operated at an annual capacity factor of from 45 to 55 per cent. Table 14 shows predictions of growth of load in Southern California. The prediction* made by Frederick H. Fowler, M. Am. Soc. C. E., is stated by him to be the probable maximum. The prediction† made by A. H. Mark- ____________________________________________________________________________________________________________ * Transactions, Am. Soc. C. E., Vol. LXXXVI (1923), p. 836. † General Electric Review, 1922.

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