The Erie Canal's conceptual origin traces to George Washington in 1784—not as a formal proposal, but as a strategic insight during his postwar western tour. The actual construction (1817-1825) was championed by DeWitt Clinton, but Washington planted the visionary seed.
After the Revolutionary War, Washington traveled to his Ohio Valley land holdings. He recognized:
He wrote to Governor Clinton: "The navigation of the Mohawk River... and a canal from thence to Lake Erie... would open a communication of immense importance."
He also championed the Potomac Company (1785) for a Chesapeake–Ohio connection—ultimately failed due to geography and funding. The Erie succeeded where Potomac failed because New York's topology offered a feasible route and unified political will.
Washington's 1784 insight catalyzed the canal era that knit the early Republic together. The Erie reduced freight costs 90%, cut travel time weeks→days, made NYC the commercial capital, and accelerated westward expansion. The "Father of His Country" was also the godfather of American internal improvements.