The route then followed the present US 46 through Manunka Chunk to Columbia; the Delaware River Drive between Columbia and Dunnfield has been obliterated since 1953 by an alignment of the former US 611, now part of Interstate 80 (I-80).
North of I-80, The Delaware River Drive follows the historic Old Mine Road for much of its route to the New York state line at Montague Township in Sussex County.
Much of this section is through the Delaware Water Gap National Recreation Area.
Legislation in 1913 provided for the extension of the Delaware River Drive to Cape May.
[3] The Egan Bill of 1916,[4] and the Edge Bill of 1917[5] did not provide for a route along the Delaware River; the Delaware River Drive may be considered to have been decommissioned by these acts.