Question: Did man-made modifications to Conewago Canal and Tennessee–Tombigbee Waterway assist in navigating these passages?
Sentence (from "Conewago Canal"): The Conewago Canal, on the west bank of the Susquehanna River below York Haven, Pennsylvania, 11 mi south of Harrisburg in York County, enabled late 18th and early 19th century rivercraft to safely bypass rapids at Conewago Falls.
Relevant evidence: No