Dam tsari ne mai -made wanda aka tsara don riƙe ruwa kuma yana sarrafa kogin ya gudana.
Tsohon kwaikwayon da aka sani a gina shi a tsohuwar Masar kusan 2900 BC.
Babban Dam a Duniya shine Dam uku na Canyon a China, tare da tsayin kimanin mita 181.
Hoover Dam a cikin Amurka yana da babban isasshen ruwan zãfi don samar da isasshen wutar lantarki don samar da wadatar wutar lantarki birni.
Gina hariyin na iya haifar da canje-canje na muhalli, kamar asarar halaye na al'ada da hijirar dabbobi.
Wasu nau'ikan kifayen kifayen na iya wucewa ta dam ta tsalle a kan ruwan ya ruwa don isa ga wannan gefen.
Hakanan ana amfani da wasu tsina a matsayin abubuwan shakatawa na yawon shakatawa, kamar sugka dam a cikin malang wanda ke da kyakkyawan ra'ayi.
Har ila yau, za a iya amfani da dams a matsayin tushen ruwan sha don jama'ar da ke kewaye.
Tsawon gini na tsayawa na iya buƙatar lokaci mai tsawo, kamar Dam din Itacepu akan iyakokin Brazil da Paraguay wanda ke ɗaukar shekaru 18 da za a kammala shekara 18.
Akwai tsamaye da yawa a duniya, kuma kowane dam yana da halaye daban-daban da ayyuka.
