Flood of June 7, 1967, in the Wapsinonoc Creek Basin, Iowa

An outstanding flood occurred in the Wapsinonoc Creek basin in east-central Iowa on June 7, 1967. The flood was the result of rainfall totaling from 4 to 13 inches in about 14 hours on the night of June 6 and the morning of June 7. The storm was nearly centered over the 180·square mile basin. The resulting peak discharges ranged from about 1.9 to about 4.3 times the 50-year recurrence interval flood. A peak discharge of 27,400 cubic feet per second was measured from 161 square miles of the basin. This and other peak discharges for drainage areas larger than 40 square miles were among the greatest recorded in the last 50 years in eastern Iowa. Flood damage was light because the basin is used primarily for agriculture and the crops were in their early growth stage. 'There was no loss of human life attributed to the flood.