Glenury Viaduct
Originally built in 1849 with twelve laminated timber arches by the Caledonian Railway.
Reconstructed in 1884-5 with wrought iron plate girder spans by Blaikie Brothers to the design of Thomas R. Barr. The original masonry piers were retained, supplemented by short wrought iron piers.
In the late 1970s, the viaduct was refurbished. The iron trestles supporting the deck were enclosed in concrete and timber decking was replaced with steel.
Described and illustrated in Engineeering in 1892 [1]
1885 '... There are altogether forty-two main girders, each of which is from 71 to 72 feet long, By 6 feet deep, averaging from 15 to 20 tons in weight. Three of these form one of the spans, of which there are fourteen. The girders are supported at each end on three wrought iron columns which rest on the stone piers, to which they are secured with strong bolts and are also bound to each other by stringer plates and channel iron bars. On the top of the main girders are placed the cross girders about two feet apart, each alternate one being strengthened to support the parapet which runs on each side along the viaduct. The planking, which is three inches thick, is then fixed to the cross girders, and on that are laid the ballast sleeper rails. The total veight of iron work employed is 1200 tons. The structure was designed by Mr Thomas Barr, C.E., Perth, the Caledonian Railway Company's chief engineer for the northern districts. The work was carried out under the superintendence of Mr Oliver, Edinburgh, and was completed on Saturday last. ...'[2]
See Also
Sources of Information
- [2] Wikipedia