Track between Cynwyd and Ivy Ridge was dismantled between 2008 and 2010 for conversion as an interim rail trail, preventing service restoration for the foreseeable future.

[citation needed][4] Service beyond Cynwyd was suspended on May 27, 1986, because of poor track conditions[5] and concerns about the Manayunk Bridge over the Schuylkill River.

[citation needed][6] Between 1984–2010, the route was designated R6 Ivy Ridge (later R6 Cynwyd) as part of SEPTA's diametrical reorganization of its lines.

[8] In the late 1990s and up to 2003, SEPTA funded a study called the Schuylkill Valley Metro which included plans to extend both sides of the R6 line to Pottstown, Reading and Wyomissing, Pennsylvania.

[citation needed][13] SEPTA activated positive train control on the Cynwyd Line on November 21, 2016.

[19] On November 14, 2013, a New York-bound Amtrak Keystone Service train, which carried 130 riders, accidentally reversed onto the Cynwyd Line from 30th Street Station.