The earthen dam that holds the reservoir was built in 1998 by SAERT.
[1] In 2002, the life expectancy of the reservoir (the duration before it is filled with sediment) was estimated at 20 years.
A net erosion map for the Ginda’i catchment shows that sediment deposition occurs at the footslopes, while the maximum erosion rate (more than 150 tonnes per hectare per year) occurred on the steepest slopes.
Erosion rates in the cultivated lands are often low, as in the Ginda’i catchment croplands are generally located on slopes which are less than 5% steep.
[3] Part of the water that could be used for irrigation is lost through seepage; the positive side-effect is that this contributes to groundwater recharge.