Abuur nooc ka mid ah weedhan adag Maamulka ayaa sidoo kale isku dayay in uu caawiyo xakamaynta daadadkii Wabiga Mississippi ee hoose, gaar ahaan ka dib markii uu daadadkii Ohio River ee 1937.
Dabcan, nooc ka mid ah jumlada ayaa ah "Hay'addu waxay sidoo kale dooneysay inay gacan ka geysato xakamaynta daadadkii Wabiga Mississippi ee hoose, gaar ahaan wixii ka dambeeyay daadkii Wabiga Ohio ee 1937, maadaama cilmi baaristu muujisay in 4% biyaha Wabiga Mississippi ee hoose ay ka yimaadeen biyaha wabiga Tennessee. "