On April 13, 1795, Lycoming County was formed from Northumberland County, prompting further growth. In 1800, the "State Road" was the second major road built in the county and followed part of Larrys Creek in Cogan House Township as it ran from Newberry (the western part of Williamsport today) north to the Pennsylvania-New York state line near Painted Post, New York. Larrys Creek had a bridge near the mouth by 1806, the first of the major creeks in the county for which a bridge is mentioned.