Route 25 was a major state highway in New Jersey, United States prior to the 1953 renumbering, running from the Benjamin Franklin Bridge in Camden to the Holland Tunnel in Jersey City. The number was retired in the renumbering, as the whole road was followed by various U.S. Routes: US 30 coming off the bridge in Camden, US 130 from the Camden area north to near New Brunswick, US 1 to Tonnele Circle in Jersey City, and US 1 Business (since renamed Route 139) to the Holland Tunnel. Route 1 largely became Route 25 in the 1927 renumbering. Route 25 was best known for the Route 1 Extension, which became the first controlled-access highway or "super-highway" in the United States that also connected the high traffic volume from the Holland Tunnel to the rest of New Jersey (with roads to other state destinations). The Holland Tunnel was the first vehicular connection between New York City and New Jersey, which are separated by the Hudson River. The Route 1 Extension was built between 1925 and 1932 and was best known for the Pulaski Skyway. The skyway and portions of the currently designated Route 139 have been listed on the federal and NJ state registers of historic places since 2005 as part of a nominated portion of the Route 1 Extension. History Routes 1 and 2: 1916-1927 In 1916, two routes were defined by the state legislature: Route 1, from the south border of Elizabeth via Rahway and Metuchen to the north border of New Brunswick, and from the south border of New Brunswick via Hightstown and Robbinsville to the east border of Trenton. Route 2, from the south border of Trenton via White Horse, Bordentown and Burlington to the north border of Camden. Route 1 used the existing Lincoln Highway from Elizabeth to New Brunswick, except for two sections between Rahway and New Brunswick (where the Lincoln Highway largely used the old Essex and Middlesex Turnpike). A new alignment was built on the northwest side of the Pennsylvania Railroad (now Amtrak's Northeast Corridor) in Woodbridge Township and Edison to avoid two grade crossings, and a detour around existing streets was made in Metuchen to avoid another one in favor of a tunnel. This route, including the realignments, was taken over in 1919, except between the south border of Rahway and downtown Metuchen, which was acquired in 1918. South of New Brunswick,