Pentrefelin (Afon Eglwyseg) Aquaduct

Built-up embankment faced with rubble stonework, above a short semi-circular tunnel for the River Eglwyseg to pass through to join the River Dee immediately to the S. The tunnel is faced with flush regular ashlar voussoirs with a pronounced keystone rising to a horizontal string course. Above this the faced stonework rises some 2m to the level of the canal towpath, where another square string forms the base to the orthostatic parapet to the towpath. The faced embankment is curved on plan between slight end pilasters, and continues for a further 35m each side to die away into the embankment. The cut for the canal, and the N face of the aquaduct was rebuilt in c1990.