Pacific service magazine . Woodward reservoir, their principalsource of water supply, and meet the occa-sional demands of the irrigationists in thesection afifected. In addition to the dam, the constructionwork undertaken by the districts includesa 400-foot tunnel leading from the damto the irrigation outlet. From this pointthe power companies have undertaken toconstruct a concrete lined pressure tunnelapproximately 4,400 feet in length fromthe irrigation outlet below the dam to thesite of a power house on the river bank,where there is a total head of 235 feet,which, taken with a maximum flow
Pacific service magazine . Woodward reservoir, their principalsource of water supply, and meet the occa-sional demands of the irrigationists in thesection afifected. In addition to the dam, the constructionwork undertaken by the districts includesa 400-foot tunnel leading from the damto the irrigation outlet. From this pointthe power companies have undertaken toconstruct a concrete lined pressure tunnelapproximately 4,400 feet in length fromthe irrigation outlet below the dam to thesite of a power house on the river bank,where there is a total head of 235 feet,which, taken with a maximum flow of1500 cubic feet per second through thetunnel, will enable an electrical generatinginstallation of a total installed capacityof, in round numbers. 36,000 the point above the power house twopenstocks approximately 8 feet 6 inches indiameter and 150 feet long will carry thewater down the slope to turn the wheelsof the power house. The power house, according to plansnow definitely approved, will consist of a. Architects sketch of our companys projected Melones Power House. concrete and steel structure 110 feet longby 45 feet deep by 50 feet in height, witha switch house in the rear approximately23 feet long by 110 feet deep by 30 feethigh. The design of the power house issimilar in character to that at Pit RiverNo. Three Development, which was putin operation a year ago. The principalitems of power house equipment will in-include: two vertical shaft turbines with amaximum capacity of 17,000 horsepowereach; two vertical shaft generators withdirectly connected exciters; one spare motorgenerator exciter set; two generator oilswitches and one stationary oil switch; oneswitchboard for control of the equipment;one bank of four 12,000-horsepower trans-formers capable of stepping down the en-ergy from the generating figure of 11,000volts to the line voltage of 115,000; one115,000-volt oil switch for control of theline between Melones and Manteca, wherethe Pacific Gas and
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