 The drop compares the Erie Canal which dropped but did so in .The Wabash & Erie Canal dropped in while the Chesapeake & Ohio dropped in .That meant that the Whitewater descended 6.4 feet per mile compared to the Chesapeake & Ohio at 2.9 feet per mile, the Erie at 1.7 feet per mile and the Wabash & Erie at 1 foot per mile.