Municipal blue book of San Francisco, 1915 . om 3500 to 7000 feet, in the distant future over 200,000 hydro-electric horse power can be developed from this system. When one con-siders that the equivalent of one hydro-electric horse power is five tonsof coal, the total coal value alone of the future power will be verynearly 1,000,000 tons a year, which, with the exhaustion of our oil fieldsand the requirements of our modern life, will be a very valuable assetfor our citizens. The city has built a road to convey materials into the Hetch Hetchydam site and has begun construction of the dam. It is


Municipal blue book of San Francisco, 1915 . om 3500 to 7000 feet, in the distant future over 200,000 hydro-electric horse power can be developed from this system. When one con-siders that the equivalent of one hydro-electric horse power is five tonsof coal, the total coal value alone of the future power will be verynearly 1,000,000 tons a year, which, with the exhaustion of our oil fieldsand the requirements of our modern life, will be a very valuable assetfor our citizens. The city has built a road to convey materials into the Hetch Hetchydam site and has begun construction of the dam. It is also proposedto build twenty miles of aqueduct, which will develop over 30,000 horsepower as a first installment of construction, and ultimately bring thewater across the San Joaquin Aalley by pipes into the distributingreservoirs supplying the City of San Francisco. It is hoped to do thiswork as rapidly as the resources of the city will permit without undulyincreasing the tax rate and imposing too great a burden on the HETCH HETCHY VALLEV of Works 59


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectpanamap, bookyear1915