Caerhowel Bridge (partly in Berriew community)

Road bridge, cast-iron with sandstone ashlar central and outer piers. Two arches formed of five parallel cast-iron arches formed of bolted segments and connected by horizontal and diagonal struts. The arches are pierced to a cusped lattice pattern and the big open spandrels have raking uprights. Road deck has cast iron outer girders with raised panel ornament and with the inscriptions ' Thomas Penson County Surveyor 1858' and 'Brymbo Company Iron Founders 1858'. Above are iron railings with dog-bars and trefoil heads between full-height uprights. Rounded ended centre cutwater with tooled chamfered band below sloping masonry from which the iron arches spring, also rounded to front with rounded capstone. Pier of unusual green sandstone ashlar with brown ashlar bullnosed cornice under ashlar parapet pier with heavy tooled stepped cap, pyramid topped. Plaque on upstream side: 'Thomas Penson County Surveyor 1858' and on downstream side 'Brymbo Company Iron Founders 1858'. Similar stone outer bridge piers. Beyond outer piers are abutments of rock-faced stone with broad band under massive plain ashlar parapets with thin iron rail.