Welsh Journals

Llwyncelyn and Graig Road railway Bridges, the Gethin No. 2 Pit and associated buildings, and the Glyndyrus Pond. The principal surviving features at the Gethin No. 2 Pit were recorded. Webber's Pond, a large pond (0.397 ha.), presumably served the original water- balance lift at the colliery; the pond was later revetted. The incline, one of the original features of the colliery, was built as a single-track powered incline. It survives for some 230m. on a substantial embankment, up to 8m. high, with an overall fall of 26m. (a gradient of 1 :9). The incline haulage engine house was a two-storeyed building, 4.1m. by 6.1m. in plan. The winding engine house, with a steam winder installed by the Crawshays, was probably built in the early 1860s to replace the original water-balance hoist. It is best preserved structure at the site, with an existing height of 5m. the winding and the incline engine houses were both constructed in regularly coursed sandstone masonry, with contrasting dressed limestone quoins. The Compressor House comprised two adjacent buildings, with the north range holding the compressor and the south possibly a generator, which would have been installed following the supply of electricity to the site by 1915. Glyndyrus pond, a ten-acre reservoir feeding the Glamorganshire canal, was partly affected by the road easement. Excavation uncovered a well-preserved double sluice at the north-east corner of the pond, including part of the sluice-gate frame. A cutting through the pond revetment wall revealed that the smaller original bank was later encased by a massive embankment. Glamorgan-Gwent Archaeological Trust Trallwn Munitions Store, Swansea (SS 6910 9670) A survey of the partly demolished Second World War munitions store was carried out for David McLean Homes in advance of residential development. The main site comprises eight identical magazines connected by a symmetrical polygonal loop road. Each of the two-part, eighteen-celled magazines was served by a roller bed. This munitions store was served by road transport only. The magazines were well-protected by blast walls, but would have been vulnerable to direct hits. The store held stocks for the anti-aircraft batteries around Swansea and would normally have been unmanned. Glamorgan-Gwent Archaeological Trust