In 1958 the United States Army Corps of Engineers completed Coralville Dam along the Iowa River four miles ( 6 km ) north of the city , creating Coralville Lake . Except for the Great Flood of 1993 and the Great Iowa flood of 2008 , the dam has helped prevent serious flooding in the city . From June through August 1993 , all three of Coralville 's main transportation links with Iowa City were submerged . The economic impact that year was severe , but the city had almost fully recovered within two years . The 2008 flood proved to be more costly as the Iowa River surpassed the 1993 record crest at over
Great Flood of 1993
Great Flood of 1993
Coralville, Iowa