Water-power; an outline of the development and application of the energy of flowing water . ient wasteway is more disastrousthan from any other cause, the quantity of water liberated inthat case being the utmost capacity of the reservoir. Although this disaster chiefly emphasizes the necessity foran ample wasteway, the case is no exception to the generalstatement that the sluices are the critical point of an earthembankment, the dam having once before failed at that point. THE PUENTES DAM IN SPAIN. 241 The most reliable estimate places the number of lives lostin this disaster at 2142, and the
Water-power; an outline of the development and application of the energy of flowing water . ient wasteway is more disastrousthan from any other cause, the quantity of water liberated inthat case being the utmost capacity of the reservoir. Although this disaster chiefly emphasizes the necessity foran ample wasteway, the case is no exception to the generalstatement that the sluices are the critical point of an earthembankment, the dam having once before failed at that point. THE PUENTES DAM IN SPAIN. 241 The most reliable estimate places the number of lives lostin this disaster at 2142, and the property loss at between threeand four millions of dollars. High masonry dams are not exposed to so man\- causes offailure as earth embankments, and failures of the former aremuch more rare than those of the latter class. Such failuresmay always be ascribed to one of three causes: (i) inadequatedimensions; (2) defective foundations; (3) improper materialsor workmanship. The Puentes Dam in —Fig. 108 is an example of afailure from defective foundations. This dam was built, toward. ±
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecthydraulicengineering
