Columbus, IN. Online Offers. Columbus ( /kÉlÊmbÉs/) is a city in and the county seat of Bartholomew County, Indiana, United States. The population was 44,061 at the 2010 census, and the current mayor is Fred Armstrong.
In 1951, the U.S. Army Corps of Engineers began construction of the New Orleans Mississippi River Floodwall under the Dumaine Street Wharf. Between 1973 and 1992, 15 major sections were built at a cost of $30 million.
Last yearâs flood of October 1998 developed in a matter of hours, broke most existing. records, exceeded the 100-year flood plain, and inundated areas that had never been. flooded before. It was the flood that many thought would never happen. But floods are. not predictable. They do not follow measured cycles.