No good deed goes unpunished: The consequences of the 1927 flood

In the 1930s, in response to the great flood of 1927, levees constructed around the Atchafalaya Basin cut off the flow of fresh water to the Vermilion River. This hydrological isolation led to better flood control and navigation, but came at a great price to the river. The lack of fresh water led to continued pollution and pollution accumulation, leading it to gain the infamous title of “Most Polluted River in America” on national television in the 1970s and eventual creation of the Bayou Vermilion District.