Canal Aqueduct Over Palmerston Street

The canal aqueduct over Palmerston Street, built around 1830 by William Crosley for the Macclesfield Canal Company, is a notable structure made of hammer-dressed buff sandstone with ashlar dressings. It features horseshoe-shaped arches with raised keystones at the ends of a barrel vault. At the base of the vault, rough through stones project. The short wing walls curve to become perpendicular to the aqueduct and terminate in raking square pilasters, both of which have a chamfered projecting band and a plain parapet with rounded coping above. The wing walls extend down as revetment walls to ground level, where they end with a square pier. There are plain rectangular settings for plaques, which are now missing, above each arch.