Dam ɗin Tiga yana cikin jihar Kano a Arewa maso Yammacin Najeriya, wanda aka gina a shekarar 1971–1974. Babban tafki ne a Kogin Kano, babban rafin Kogin Hadejia. An gina madatsar ruwan ne a lokacin gwamnatin Gwamna Audu Bako a ƙoƙarin inganta samar da abinci ta hanyar ayyukan ban noman rani. Dam ɗin ya 178 square kilometres (69 sq mi) tare da mafi girman damar kusan 2,000,000 cubic metres (71,000,000 cu ft) Ruwa daga madatsar ruwan ya samar da aikin Ban ruwa na Kogin Kano da kuma Birnin Kano. Karatuttukan da yawa sun nuna cewa madatsar ruwan ta kawo mummunan tasirin tattalin arziki lokacin da aka yi la’akari da tasirin da yake da shi a kan al'ummomin da ke ƙasa. Bayan an kammala madatsar ruwan sai kogin ya gangara zuwa Gashua a jihar Yobe ya faɗi da kusan 100,000,000 cubic metres (3.5×109 cu ft) a kowace shekara saboda ban ruwa mai ban mamaki kuma sama da 50,000,000 cubic metres (1.8×109 cu ft) saboda danshi daga tafkin. Wani bincike da aka buga a shekara ta 1999 ya kammala cewa manoma a cikin magudanar ruwa sun daidaita aikin gonar su, tare da taimakon sabbin kayan fasaha, amma karuwar matakin samarwar ba zai iya ɗorewa ba.