Former Tramroad Bridge (partly in Pontllanfraith Community)

A narrow but deep angled bridge carrying the former tramroad and later railway across a narrow lane. Of rubble stone with roughly dressed voussoirs, quoins and keystone and rockfaced stone to the rebuilt areas and parapets; some blue brick repairs. E facing uphill side has putlog or drainage holes; a near right angled right sloping abutment is built against the arch's voussoirs; the wall to left, almost a revetment to the steep bank, is much wider; close-set rubble coping to both sides, a shallow offset at base and above the narrow arch, and a projecting coping above on which the later parapet of rockfaced stone has been erected. W facing side is similarly asymmetrical with wide curving revetment to left, narrow offset at impost level, slanting abutment with brick buttress to right; moulded brick coping to each side. On top the parapet is not central over tunnel arch.

There is a break in the vault with the final uphill 1/5th section at a higher level probably to accommodate the rising ground.