The Engine Arm was carried over Telford's new canal to rejoin the upper level by the cast iron Engine Arm Aqueduct, which was installed around 1828. It is now a Scheduled Ancient Monument, as are the excavated foundations of the Smethwick Engine, at the corner of Rolfe Street and Bridge Street North.
A section of the original canal route was preserved and relocated to Telford's new waterway, where it reconnects with the upper level via a cast iron aqueduct built in 1828. The remnants of the Smethwick Engine, now unearthed, are also recognized as a Scheduled Ancient Monument, situated at the corner of Rolfe Street and Bridge Street North.