At the time of Italian unification, the gap between the former Northern states of Italy and the Southern two Sicilies was significant: Northern Italy had about 75,500 kilometers of roads and 2,316 kilometers of railroads, combined with a wide range of canals connected to rivers for freight transportation; iron and steel production was 17,000 tons per year. By contrast, in the former Bourbon Southern state, there were 14,700 kilometers of roads, 184 kilometers of railroads (only around Naples), no canals connected to rivers and iron and steel production was 1,500 tons per year.