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Keywords:
NAG HAMMADI,
UPPER EGYPT,
RIVER NILE,
ASWAN DAM,
ASYUT,
EGYPT,
AFRICA,
BARRAGES,
IRRIGATION,
WORKS,
WATER SUPPLY,
SLUICES,
GATES,
BLOCKWORK,
LOCATION,
FLOODS,
BASINS,
ROLLERS,
NAVIGATION,
OPENINGS,
SAND,
STEEL,
PILING,
RUBBLE,
SCOUR,
APRONS,
RIVERS,
BEDS,
REGULATION,
CONTROL,
HYDRAULIC,
GRADIENTS
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© Thomas Telford and ICE
1931
