Lake Dam including Spillways

Wide straight stone-revetted dam orientated E-W. The wall on the N side, facing the lake, is concave and battered, whilst the S side is embanked above the level of the formal gardens and laid with grass. A Promenade runs along the top of the dam, bound by late C20 iron railings and partly laid with paviers. Under the W end of the dam is a spillway to allow water to flow from the lake into a channel and hence into the Roath Brook to the S. This is in the form of a cascade which runs under a bridge beneath the dam and then curves round towards the SE. The bridge has simple cast iron girders and the abutments and sides of the spillway are of snecked rock-faced stone. The W end of the dam is continuous with the spillway, the E ends curving outwards.