Official opening of the Queenston-Chippawa Power Development . QUEENSTON—CHIPPAWA DEVELOPMENT Fig. 9 Placing concrete lining on rock sides of canal. Completed sections 40 feet in length in foreground with mixing plant and forms in distance. II. ; Intake The vital requirement of a power developmentsupplying the needs of a large community is con-tinuity of service, and one of the most frequentlyrecurring obstacles to securing this end in Canadais the annual formation and flow of ice. This isa particularly aggravated form of trouble in thecase of the Niagara River because the large fieldsof ice w
Official opening of the Queenston-Chippawa Power Development . QUEENSTON—CHIPPAWA DEVELOPMENT Fig. 9 Placing concrete lining on rock sides of canal. Completed sections 40 feet in length in foreground with mixing plant and forms in distance. II. ; Intake The vital requirement of a power developmentsupplying the needs of a large community is con-tinuity of service, and one of the most frequentlyrecurring obstacles to securing this end in Canadais the annual formation and flow of ice. This isa particularly aggravated form of trouble in thecase of the Niagara River because the large fieldsof ice which form along the shores of the com-paratively shallow Lake Erie are all dischargedthrough the river each spring. It was only aftera long series of tests and experiments on large-sized models had been made, that a design of in-take was evolved which will operate satisfactorilyto keep the plant absolutely free from this icemenace. At the present time a large area of the riverbed has been unwatered by the construction ofcoffer-dams, but the actual building of the intakestructure within this area has been deferred untilnext season. In the meantime, water to operatethe plant will enter the Welland River portion ofthe canal through the Nor
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Keywords: ., bookauthorontarioh, bookcentury1900, bookdecade1920, bookyear1921
