Question: Did man-made modifications to Conewago Canal and Tennessee–Tombigbee Waterway assist in navigating these passages?
Sentence (from "Tennessee–Tombigbee Waterway"): The major features of the waterway are 10 locks and dams, a 175 ft deep cut between the Tombigbee River watershed and the Tennessee River watershed, and 234 mi of navigation channels.
Relevant evidence: Yes