Dams

A dam that has a non-functional outlet valve can not release water for irrigation, while an eroded spillway may eventually lead to a complete breach. Examples are given here of rehabilitation measures that restored dams to full functionality at a fraction of the cost of constructing new dams.

GaMabintane, Limpopo, South Africa - Client : Africare SA - Designed and built by Dams for Africa, December 2002

To Crests

To Outlets

To Siphons

To Spillways

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(1) Example of a siphon installed because the old outlet pipe that goes under the embankment was blocked.

(2) Example of a gabion structure installed to stop erosion of the spillway.