The current alignment of US 1 between Trenton and New Brunswick was chartered as the Trenton and New Brunswick Turnpike in 1803 and struggled throughout its 100-year existence. In 1913, the Lincoln Highway across the United States was created and connected Trenton to Newark within New Jersey. The Lincoln Highway was legislated as Route 13 between Trenton and New Brunswick in 1917 and as part of Route 1 between New Brunswick and Elizabeth, later extended to Jersey City. With the creation of the U.S. Highway System in 1926, US 1 was designated to follow the Lincoln Highway between Trenton and Newark and the current alignment of US 1/9 Truck to Jersey City, where it continued to the Holland Tunnel. In 1927, the Lincoln Highway portion of US 1 became Route 27. The current alignment of US 1 between Trenton and Newark was legislated as Route 26, Route S26 and Route 25, while the current route north from Jersey City to the George Washington Bridge became Route 1 and Route 6. In subsequent years, US 1 was moved onto its current routing between Trenton and the George Washington Bridge. The state highways running concurrent with US 1 were removed in 1953, around the same time the route was moved to the Trenton Freeway within Trenton and the old alignment became US 1 Alternate, part of which is now US 1 Business. By 1969, the Trenton Freeway was extended north to Whitehead Road in Lawrence Township, and that segment became Route 174. When the Trenton Freeway was completed north to US 1, the US 1 designation was shifted to the freeway, replacing Route 174.