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Late 18th century road bridge over the Blackwater Burn. It is a single span hump-back rubble bridge, with a tooled rubble segmental arch ring spring from tooled rubble abutments. There is a tooled rubble parapet cope to splayed abutments. The approximate span is 10.97 m (36 feet). The masonry of the bridge is of igneous rock types, predominantly granite, with some blocks having the appearance of basalt. Steel tie rods and pattress plates have been installed on the bridge spandrels and wingwalls in later periods, in an attempt to resist the outward forces on the masonry from the weakened original granular fill material.
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