Even before the end of the first full navigation season on the Erie Canal, it was obvious there was a need for enlargement. The wait for locks often took hours and the sizes of boats that the Canal could accommodate were severely limited. The first enlargement began in 1836, rerouting parts of the Canal and widening it to seventy feet while deepening it to seven feet. Locks were doubled to allow simultaneous two-way passage and extended in length to enable passage for larger boats. Canal construction abruptly halted in 1842 because of public reaction to a tax for public projects. However, work resumed in 1847 and, by 1862, the Enlarged Erie Canal was completed.
The Barge Canal System, begun in 1907 and completed in 1918, was a result of a report from the Committee on Canals, created by New York Governor Theodore Roosevelt in 1898. The Canal’s width was extended to 125 feet with a minimum depth of twelve feet. The towpath was eliminated because it had become obsolete with the rise of motorized vessels. This time, engineers believed they could tame natural bodies of water, relocating the Canal into lakes and rivers controlled by a sophisticated network of dams and locks and virtually abandoning large sections of the original Canal.