Show The Tho Gates Flood-Gates of the Nile NUe Dams The Nile dams darns at and Rl at Asa As As- n will 11 be completed during the n next ri year a and a are designed to Impound o d the water of the freshets freshet so that the whole of the Province of now arid can cani be freshet i irrigated fa water iel To the permit gates flood J. J the re ress passage e ss whoso whose 1 of the di dimensions dimensions di- di n are calculated to 10 permit the passage pas sage of all the flood water without hinder different ance m There altitudes Wt are in If It all all are gates flood o open g all ff tg the at flood water passes freely freeh In practice they will nil be closed gradually so as to Impound Impound impound Im Im- im- im pound water sufficient to fill the reser reser- Each gate flood-gate has an opening two metres high by seven metres lon long Ions except that a few are aro of ot half this size The pressure pressure pres pres- sure on the lowest gates is tons and in spite of the enormous pressure the gates grates are opened and closed by machin ery cry which work works with perfect smoothness j and ease N. N Y Sun |