The average depth of the Mississippi River is approximately 100 feet.

The Mississippi River typically has an average depth of around 100 feet, though this measurement can vary greatly at different points. This depth facilitates extensive navigation and the transport of goods, establishing it as a vital commercial artery in the United States. The river's depth is also critical in sustaining various ecosystems, and fostering various aquatic species. Its considerable volume and flow patterns also help shape the surrounding landscape and impact local economies.