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

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
through the subter-ranean infiltration galleries into the Sunol-Niles Aqueduct. This aqueduct, as it stands today, waspart of the construction necessary for thetransmission of the additional water de-veloped by the building of Calaveras Dam. Formerly the aqueduct, which is five mileslong, consisted in equal parts of concrete-lined tunnels large enough to carry seventymillion gallons of water daily and a woodflume which could transport about thirtymillion gallons of water per day. During thesummer of 1923 the wood flume was replacedwith a concrete conduit with a capacity ofseventy million gallons daily, so that at pres-ent the entire transmission system as far asNiles will carry not only the forty-fivemillion gallons demanded under the terms ofthe arrangement with the city, but alsotwenty-five million gallons daily in addi-tion, thereby providing space for future de-velopment of the Alameda sources. At the terminus of the aqueduct near Nilesa concrete-lined reservoir has just been com-
Text Appearing After Image:
Calaveras Dam becomes ,312,000 cubic yards of material in planuary, 1924 SAN FRANCISCO WATER January, 1925 IN 1809 the ownership of Calaveras Valley in the Coast Range hills, midwaybetween Niles Canyon and Mount Hamilton, was in lively dispute betweenthe Pueblo of San Jose and the Mission of Santa Clara. What was the end of the dispute, says an historian, we have been unableto discover, but it seems likeliest that La Calaveras belonged rather to theMission San Jose. It was a long time after that dispute that Calaveras became a part of thewater supply of San Francisco. The valley, together with tributary watershedarea, was acquired by Spring Valley in 1875. It was a wise foresight, 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 con

Note About Images