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Bridge, built in circa 1773, possibly by Robert Adam. It is a high picturesque 2-tier rubble estate bridge with tooled rubble dressing, which is spanning a deep valley. The lower single span is supporting a double span. The lower arch spans 36.6 feet (11.2 metres), and the upper arches each span 28 feet (8.5 metres). The arch rings are constructed from tooled rubble, and the upper pair are linked by a mural passage with a shallow round-headed niche in the upper spandrel. There are end buttresses, and an undulating low rubble parapet with a later concrete cope. The design of the bridge is highly unusual. It is possible that the lower arch is earlier, but when Letterfourie House (NJ46SW0035) was built and a carriage drive required, the second tier was added to accommodate horse drawn vehicles. The lower bridge would have had too steep an approach over the gorge for these. The approach from the West to Letterfourie was by this route.
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