The Gibe III Hydroelectric Power Project was being implemented by the Ethiopian Electric Power Corporation (EEPCO). It is located within the Gibe – Omo River Basin 675 km trajectory from its terminus at Lake Turkana, Kenya – Ethiopia border. Kenya has a legitimate concern with the developments on the Omo River because it is a trans-boundary resource. The Omo River is the only perennial tributary feeding Lake Turkana and is estimated to provide at least 80% of its inflow.

The objective of the study was to evaluate the effect of the Gibe III Hydroelectric Power Dam on the 675km downstream along River Omo and the Lake Turkana environment where the river feeds into. The potential effects downstream include hydrological (particularly on the River Omo and Lake Turkana), socio-economic for the inhabitants, ecological for plants & animals, archeological & cultural areas including the wetlands.