| OCR Text |
Show PROBLEMS OF IMPERIAL VALLEY AND VICINITY. 183 Irrigable lands between Boulder Canyon and Williams Fork will affect to some extent the equation of the now, as will also the demands for Imperial Valley. Neglecting these, however, the items used in other sections of the river are as follows: Present average annual discharge............................acre-feet.. 15, 700,000 Estimated ultimate after irrigation above.........................do___ 11, 700,000 Equated flow: Present..............................................second-feet.. 22,000 Ultimate...................................................do___ 16,-000 Total head...............................................'. feet.. 550 Potential horsepower: Present.........i...................................:............. 1, 210,000 Ultimate.......................................................... 880,000 Summary of potential power in canyon region. From- To- Second-feet •quated flow. Miles. Total fall. Potentialhorsepower at turbines, continuous output 88 per cent efficiency. Present. Ultimate. Present. Ultimate. GREEN RIVER BASIN. Main Stem: Flaming Gorge...... Yampa.............. Duchesne........... Yampa River: Juniper.. White River: Rangely... Yampa............... 2,700 5,800 7,800 2,600 760 1,600 4,300 5,400 2,200 500 80 90 170 70 70 Feet. 1,055 335 770 1,120 320 285,000 194,000 601,000 289,000 24,300 169,000 144,000 416,000 244,000 16,000 Duchesne............. Colorado.............. Mouth................ .....do................ Total . . 1... 1,393,300 989,000 Mouth................ ........\ GRAND RIVER BASIN. Dewey............ 6,000 6,000 13,000 15,500 16,000 125 200 325 450 350 210,000 210,000 San Juan............. High water, Boulder Canyon reservoir. Gulf................ SAN JUAN BASIN. 'Possibilities not attractive.] COLORADO RIVER. Junction of Green and Grand. San Juan.........'. .. 17,000 21,000 22,000 400 2,200 550 680,000 4,620,000 1,210,000 520,000 3,410,000 880,000 Boulder Canyon.... Total 6,510,000 4,810,000 Grand total, Colorado Basin. 8,115,000 6,011,000 Summary of all power possibilities. [Possible horsepower at turbines 88 per cent efficiency.) Green River: Yampa..... White...... Main stem.. Grand River.... Colorado R.iver. Total. Percent___ Estimated potential power in river. Present. Ultimate. 289,000 24,300 1,080,000 210,000 6,510,000 8,113,000 100 244,000 16,000 729,000 210,000 4,810,000 6,009,000 74 Power site possibilities." 45,000 12,200 612,000 90,000 5,985,000 6,744,000 1 Based on heads at sites applied for to Federal Power Commission or known by surveys or taken from Water-Supply Paper No. 395, by E. C. La Rue. Discharge as at present. |
