Despite higher rates, the railroad’s greater speed and dependability (most canals froze in winter; rivers became unnavigable in low water or floods) gave it an edge. Towns bypassed by the tracks shriveled; those located on the iron boomed, especially if they also enjoyed water transport. Springing from the prairie shores of Lake Michigan, Chicago became the terminus for fifteen rail lines by 1860, its population having grown by 375 percent during the previous decade. Racing at breakneck speeds of thirty miles an hour, the iron horse cut travel time between New York and Chicago from three weeks
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