Sans Souci Island is an island in the Cedar River in the city of Waterloo, Iowa. The island is in size, with most of the land area being woodland.http://www.gazetteonline.com/apps/pbcs.dll/article?AID=/20080611/NEWS/314652543/-1/FLOOD The island was severely affected by the Iowa flood of 2008. By June 10, 2008, the island's entire population was forced to evacuate following the breach of a sandbag dike. Prior to the flood, the island had a population of between 40 and 50 residents. All homes were demolished in 2008 due to extensive flood damage, and the island was converted into a recreation area.https://www.cityofwaterlooiowa.com/departments/engineering/waterloo_whitewater_park/sans_souci_island.php
See also Waterloo, Iowa Iowa flood of 2008 Cedar River
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