Canal aqueducts carry canal water over natural waterways to allow reliable boat passage, and the Six Mile Creek Aqueduct does so through a unique bi-level structure in which a multi-arch masonry and formed concrete flume carries the towpath on the upper level while the canal passes along the lower level. Stoplogs set against the outer archways manage the canal's water level and create a cascade of water into the creek below. After suffering a series of failures in 2018 and 2019 because of deterioration and exceptional rain events, the aqueduct was saved from complete loss and restored with help from local and state agencies and the Ohio Department of Natural Resources. Completed in 1845, the Miami and Erie Canal was the primary transportation route between western Lake Erie and the Ohio River before the railroad era. Built entirely by hand with shovels, picks, wheelbarrows, and horse- and mule-drawn carts, it connected Ohio farmers and merchants to wider markets, expanded regional commerce and population, increased agricultural production, and made goods from across the United States easier to obtain. Its decline and eventual abandonment resulted from falling use, railroad competition, increased motor vehicle use, and the 1913 flood.