Claerwen Dam, including attached footbridges

Masonry-faced concrete dam, approximately 56m high, supports viaduct on 13 elliptical arches; stone parapets. Central arch of viaduct broader, and carries viewing platform with balustrade; end piers of platform run down full height of dam framing stepped spillway. At foot of this, two buttresses with doorways which are linked by bridges (diagonally set) over pool at foot of dam. To ends of dam, stepped spillways with parapet walls, spillways broaden as they drop, walls turn to frame channel in front of foot of dam which is spanned by stone bridge of 2 segmental arches, with iron railings.