Everything you're looking at is engineered. The Tennessee-Tombigbee Waterway links the Tennessee River near Pickwick Lake with the Tombigbee and Black Warrior system at Demopolis, Alabama, opening a water route from middle Tennessee all the way to the Gulf of Mexico. Proposals circulated for generations before construction finally began in 1972, and the waterway opened in 1985 after 13 years of work. Jamie L. Whitten, whose name is on the bridge and the lock and dam, was instrumental in pushing through both this canal and the Parkway itself.
Knowing that changes the stop. The still water, the straight banks, and the scale of the crossing are the point.