File:San Francisco water (1925) (14597184927).jpg

Identifier: sanfrancwat4192581930spri (find matches)
Title: San Francisco water
Year: 1922 (1920s)
Authors: Spring Valley Water Company (San Francisco, Calif.)
Subjects: Water-supply
Publisher: San Francisco, Calif. : Spring Valley Water Co.
Contributing Library: San Francisco Public Library
Digitizing Sponsor: California State Library Califa/LSTA Grant

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ht, not generally appreciated at the time, that promptedSpring Valley to acquire this property. pleted. This reservoir is of the cut-and-filltype, the excavated earth being used to formthe banks of the basin upon which the con-crete lining is laid. It has a capacity of fivemillion gallons, with space for the construc-tion of a duplicate unit at one end. The pur-pose of the reservoir is to balance the flowbetween the aqueduct and the pipe-line whichcommences at this point. Should the aqueductcarry more water than is required to fill thepipe, the surplus goes into storage in the reservoir, and if the reverse is true, the reser-voir supplies the deficiency. The Niles Reser-voir was finished some time ago and is nowin operation. From Niles Reservoir to Irvington a forty-four-inch riveted pipe-line about 16,000 feetlong was laid parallel to the Western PacificRailroad. This pipe-line connects with the pipewhich is now being constructed by the cityof San Francisco. It was built under a con-
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Spring Valleys Calaveras Dam approaches completion. When this picture was taken, at thebeginning of December, 1924, there were 2,677,000 cubic yards of material in place January, 1925 SAN FRANCISCO WATER v I VHE foresight of the Company throughout its history has been rather re-_L markable. For example, as early as i860, when San Francisco had onlysixty thousand people, rights were acquired on the peninsula at Pilarcitos; andin 1875 lands were bought in Calaveras Valley, in Alameda County. The systemhas expanded, unit by unit, as the need arose. —The Master in Chancery, Spring Valley Water Company Rati tract by the Western Pipe and Steel Com-pany of California, the same firm that con-structed the Bay Division pipe of the HetchHetchy Aqueduct between Irvington andCrystal Springs Reservoir. The location of the line on the WesternPacific Railroad right-of-way proved to be agreat aid in its construction. Ordinarily itis necessary to ship pipe of this character byrailroad and then unload

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