White Hart Bridge (Canal Bridge No.143) including attached retaining wall

Hump-back bridge of rubble sandstone. Segmental arch has thin voussoirs and low parapet with flat coping. The abutments curve outwards on both sides and the parapet has square end piers. On the E side is a cast iron plaque with the bridge number cast in relief in keystone position. The towpath passes under bridge on N side and has a stone kerb; on S side is a stringcourse roughly at water level.

This bridge rises to W and is reinforced with metal ribs under the vault. It defines the S border of the Talybont Basin and adjoins a long retaining wall which borders the Basin to S with weir below; to W is the aqueduct over the Caerfanell River. No string course visible on W side and only one pier NW. Concrete surface.