U.S. RouteĀ 46 (USĀ 46) is an eastāwest U.S. Highway completely within the state of New Jersey, and runs for 75.34Ā mi (121.25Ā km). The west end is at an interchange with InterstateĀ 80 (I-80) and RouteĀ 94 in Columbia, Warren County, on the Delaware River. The east end is in the middle of the George Washington Bridge over the Hudson River in Fort Lee, Bergen County, while the route runs concurrently with I-95 and USĀ 1/9. Throughout much of its length, USĀ 46 is closely paralleled by I-80. USĀ 46 is a major local and suburban route, with some sections built to or near freeway standards and many other sections arterials with jughandles. The route runs through several communities in the northern part of New Jersey, including Hackettstown, Netcong, Dover, ParsippanyāTroy Hills, Wayne, Clifton, Ridgefield Park, Palisades Park, and Fort Lee. It crosses over the Upper Passaic River at several points. The road has been ceremonially named the United SpanishāAmerican War Veterans Memorial Highway.
What is now USĀ 46 was originally designated as three separate routes. Pre-1927 RouteĀ 5 was created in 1916 to follow the road from Delaware to Denville, pre-1927 RouteĀ 12 in 1917 to follow the route between Hackettstown and Paterson, and pre-1927 RouteĀ 10 in 1917 to run between Paterson and Edgewater. In 1927, RouteĀ 6 was legislated to run from Delaware east to the George Washington Bridge, replacing portions of RoutesĀ 5 andĀ 12 and paralleling the former RouteĀ 10, which itself became RouteĀ 5 and RouteĀ 10N, the latter being shortly removed from the state highway system. In 1936, USĀ 46 was designated to run from U.S. Route 611 in Portland, Pennsylvania, east to the George Washington Bridge. The route replaced Pennsylvania RouteĀ 987 (PAĀ 987) to the Delaware Bridge over the Delaware River, and from there followed RouteĀ 6 across New Jersey. In 1953, the RouteĀ 6 designation was removed from USĀ 46 in New Jersey, and later that year, the route was realigned to end at USĀ 611 in Columbia, New Jersey, replacing a part of RouteĀ 94. USĀ 611 had been brought into New Jersey by two new bridges over the Delaware River, following a freeway between them that became a part of I-80. In 1965, USĀ 611 was aligned back into its original Pennsylvania route (which from 1953 until 1965 was USĀ 611 Alternate), and USĀ 46's western terminus remained as an interchange ramp with I-80 and RouteĀ 94. Its number is out of place since USĀ 46 lies north of USĀ 22, USĀ 30 and USĀ 40. US 46 is the shortest 2-digit US Highway.
