oa Civil Engineer in South Africa - Sediment surveys in the Department of Water Affairs : technical note

Volume 22, Issue 2
  • ISSN : 0009-7845



Traditionally, the volume of sediment deposited in a dam over a number of years was measured by conducting a new contour survey of the basin bottom, more or less in the same way as the original shape was measured except that modern aerial survey methods could not be used because of the presence of water.

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