In the middle of the last century the southernmost section of the D&L Trail's Delaware Canal Towpath was severed by rail lines and US highways 1 and 13. Thanks to the work of ircuit Coalition member organizations, PennDOT and Amtrak several projects have been completed or are underway to reconnect these crucial gaps. In 2013 PENNDOT completed a passageway to provide a grade separated crossing of US 13 in Tullytown. More recently PennDOT is wrapping up two projects that when complete address another missing link across US 13 at Green Lane in Bristol Township and under Tyburn Rd adjacent to the Amtrak NE Corridor Line tracks.

Two other projects are in the pipeline but construction has not begun yet. Another barrier the Conrail embankment near Morrisville will get a box culvert to travel under the rail line. Finally Morrisville Borough has received funding to design the missing link of the trail across Route 32.