Question: Did man-made modifications to Conewago Canal and Tennessee–Tombigbee Waterway assist in navigating these passages?
Sentence (from "Tennessee–Tombigbee Waterway"): The Tennessee–Tombigbee Waterway (popularly known as the Tenn-Tom) is a 234-mile (377-kilometer) man-made waterway that extends from the Tennessee River to the junction of the Black Warrior-Tombigbee River system near Demopolis, Alabama, United States.
Relevant evidence: No