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In page Erie Canal:

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The middle section from Utica to Salina (Syracuse) was completed in 1820, and traffic on that section started up immediately. Expansion to the east and west proceeded simultaneously, and the whole eastern section, 250 miles (400 km) from Brockport to Albany, opened on September 10, 1823, to great fanfare.[8] The Champlain Canal, a separate but connected 64-mile (103 km) north–south route from Watervliet on the Hudson to Lake Champlain, opened on the same date.[citation needed]