Madatsar Ruwan Challawa
Dam din Challawa yana cikin Ƙaramar Hukumar Karaye ta Jihar Kano a Arewa maso Yammacin Najeriya, kusan kilomita 90  kudu maso yamma da garin kano. Babbar tafki ce a Kogin Challawa, yanki ne na Kogin Kano, wanda shine babban rafin Kogin Hadejia.

Gina 
Aikin tafkin kwazazzabon mai suna Challawa Rorge ya fara ne daga Hukumar Kula da Albarkatun Ruwa da Injiniya na Gwamnatin Jihar Kano, daga baya kuma aka mika shi ga Gwamnatin Tarayya wacce ta ɗauki nauyin aikin. Madatsar ruwan mallakin Hadejia-Jama'are River Basin Development Authority, hukumar Tarayya ce. 

Julius Berger ne ya gina madatsar ruwan a shekarar 1990 - 1992 ta hanyar amfani da ginin dutsen. Yana da kuma tsayin mita 42 kuma da kilomita 7.8  a tsayi  Dam ɗin yana da cikakken damar ajiya na 904,000,000 m 3 . Yankin kama kai tsaye shine 3857 km 2 .

Hanyoyin wutar lantarki 
An tsara madatsar ruwan ne da tunanin samar da wutar lantarki ta hanyar ruwa, kuma tana iya samun karfin 3MW a matsakaita - mafi yawa a lokacin damina kuma mafi karanci a lokacin rani. Koyaya, wutar zata fi kuɗi tsada fiye da yadda ake sayarwa yanzu, kuma ba a bayyana yadda za'a shigar da aikin samar da kayan aikin ba.

Batutuwa 
Ƙasa a cikin abubuwan da aka kama na madatsar ruwan ba ta daidaita ba, don haka tafkin na iya yin silsi. Hakanan ana ajiye Silt a cikin Kogin Challawa, wanda ya shafi tsarin karɓar Ruwa na Ruwa na Birnin Kano.  Madatsar ruwan ta katse daidaituwar yanayin tare da kogin. Yankunan da ke gaba yanzu suna fuskantar ambaliyar ruwa yayin da gandun da ke gefen kogi da filayen shukoki sun bushe. 

Wani bincike da aka gudanar a shekara ta 2002 ya nuna cewa duk da cewa dam din na da niyyar tallafawa ayyukan ban ruwa, ba a fara komai ba, duk da cewa dam din ya rufe gonaki da yawa. Ana amfani da ruwan ne kawai don samar da garin Kano . Madatsar ruwan Challawa da Tiga Dam da ke kusa da wurin suma sun sami mummunar illa a ƙasan Hadejia-Nguru .  Karatuttukan da yawa sun nuna cewa wadannan madatsun ruwa sun kawo mummunan tasirin tattalin arziki lokacin da aka yi la’akari da tasirin su ga al'ummomin da ke gabar teku.

Manazarta 

Kogunan Najeriya
Kogunan Nijeriya