Oyan River Dam

It is used primarily to supply raw water to Lagos and Abeokuta, but has potential for use in irrigation and power generation.[citation needed] The dam was commissioned on 29 March, 1983 by president Shehu Shagari, and is operated by the Ogun-Osun River Basin Development Authority.[1] It was designed to supply raw water to Lagos and Abeokuta, and to support the 3,000 hectare Lower Ogun Irrigation Project.[3] An earlier study in 1990–1993 had indicated that the risk of the disease, which is carried by snails, could be greatly reduced if the reservoir were continuously discharged during the hot dry season.[5] Residents of Abeokuta were forced to rely on rivers and streams to meet their water needs.
Ogun StateNigeriaCatchment areaTurbinesInstalled capacityAnnual generationAbeokuta NorthAbeokutaOgun RiverShehu ShagarischistosomiasisDams and reservoirs in NigeriaAdamawa StateKiri DamBauchi StateKafin Zaki DamCross River StateObudu DamGombe StateDadin Kowa DamKano StateChallawa Gorge DamTiga DamWatari DamKatsina StateJibiya DamZobe DamNiger StateJebba DamKainji DamShiroro DamOyo StateAsejire ReservoirIkere Gorge DamSokoto StateBakolori DamGoronyo DamZamfara StateGusau Dam