It is the sister to the lines larger Paulinskill Viaduct. The Delaware River Viaduct also crosses Interstate 80 on the east side of the river and Slateford Road, abandoned in 1983, it is part of a New Jersey Transit proposal to restore passenger service to Scranton, Pennsylvania. The bridge is 1,452 feet long and 65 feet high water level to the top of the rail. The footings were excavated down to bedrock, which ranges from 26 feet to 53 feet below the surface, a total of 51,376 cubic feet of concrete and 627 tons of reinforcing steel were used to construct this bridge. The bridge was completed on December 1,1910, about a year before the Cut-Off opened, the bridge was originally envisioned as a curved bridge with a 1°30 curve that would have allowed speeds of 80 mph. But the design was altered to include a tangent stretch of track across the bridge, a 1°30 curve on the New Jersey side and this tighter curve required trains to slow to 50 mph. No other curves on the 28-mile Cut-Off were sharper than 2°, later, the super-elevation of this curve was increased, bumping up the speed limit to 55 miles per hour. The viaduct is the largest reinforced concrete structure built with a continuous pour process, there is no known evidence to support the legend that several workers fell into the concrete during construction and could not be extracted because of the need to keep pouring. The tracks were removed by Conrail in March 1989, five years later than the rest of the New Jersey section of the Cut-Off, a proposal to restore train service between Andover, New Jersey, and Scranton would require substantial repairs to the bridge. As of 2017, the Pennsylvania Northeast Railroad Authority is gathering funding to commission a study to update the 2009 estimates of the costs of restoring service, including the bridge repairs. List of bridges documented by the Historic American Engineering Record in Pennsylvania List of crossings of the Delaware River Historic American Engineering Record No, pA-541, Delaware River Viaduct Touring the Lackawanna Cut-Off
Image: Delaware River Viaduct
A view of the viaduct where it crosses I-80 on the New Jersey side of the Delaware River.