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.
A plate was. installed on the upper half of an outlet. culvert which controls the culvertâs outflow during. high water events. Photo of clear span bridge that replaced culverts. Photo of June 13, 2008 flood event in downtown. area of Village of Thiensville. Phase â Two: Two restricting undersized culverts, which allowed roadway passage from a. parking lot to a commercial building, were removed and replaced by a 50-foot clear span. bridge.