The Bonnet Carré Spillway is a flood control structure located on the Mississippi River in Louisiana. It was built to manage excess water flow and protect nearby communities from flooding. The spillway can divert water into the Lake Pontchartrain basin, helping to reduce pressure on the river during heavy rainfall or snowmelt. Constructed in 1931, the spillway is designed to open during high water events. It features a series of gates that can be raised to allow water to flow into the spillway area. This system plays a crucial role in maintaining the balance of the river's ecosystem and safeguarding infrastructure.