Turnpike roads, canals, steamboats, and railroads all transformed transportation in the early 19th century and helped link different regions of the United States. The Erie Canal opened in 1825 and linked the Northeast to the Northwest, making trade and transportation more efficient. Canals aided westward expansion but railroads eventually replaced them as the dominant land transportation method, as railroads were faster. Steamboats allowed for transportation on rivers against river currents, linking the South and West. These developments in transportation helped drive economic growth and urbanization.