The Reading Viaduct is the common name for a railroad right-of-way (now abandoned) viaduct, in Philadelphia, Pennsylvania, that operated as the 9th Street Branch, formerly owned by the Philadelphia and Reading Railway, now Reading International, Inc. It opened in 1893, and was built by the Philadelphia and Reading Terminal Railroad as an approach to the new Reading Terminal.
The viaduct heads north from Reading Terminal and at Callowhill Junction, forks, the 9th Street Branch formally merging with the current SEPTA line. Except for a gap caused by the construction of the Vine Street Expressway (I-676/US 30), and a few blocks at the north end, the viaduct still exists. At Callowhill Junction, the City Branch turns west to join the former Reading Company main line at Belmont Junction.
The Philadelphia and Reading Terminal Railroad was incorporated on April 13, 1888, leased by the Philadelphia and Reading Railway on May 1, 1891, and soon began construction. The viaduct and terminal opened on January 29, 1893.
There is a proposal to turn the viaduct and City Branch into an elevated park similar to the High Line (New York City).(Wikipedia)