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Kylesku Bridge

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Kylesku Bridge

The Kylesku Bridge (officially known since 2019 by its Gaelic name Drochaid a' Chaolais Chumhaing) is a distinctively curved concrete box girder bridge in northwest Scotland that crosses Caolas Cumhann (Gaelic for "narrow strait", pronounced "Kyles Cuan"); the channel that connects Loch Glencoul and Loch Glendhu with Loch a' Chàirn Bhàin in Sutherland. It is listed as category A, the highest grade.

In June 1978, the Highland Regional Council asked Ove Arup & Partners Scotland to prepare a feasibility study for a bridge, in their capacity as consulting civil engineers, and it was prepared by March 1979.

Construction for the approach roads, costing £4 million, began in summer 1981. Construction of the bridge began in August 1982, with Morrison Construction and Lehane, Mackenzie and Shand the chief contractors.

It was constructed by building out the supporting legs and then lifting into place the central span, which weighed 640 tonnes (630 long tons; 710 short tons).

The cost of the bridge was £4 million, although was earlier budgeted at £2.75 million. The bridge opened to traffic in July 1984, and was formally opened by the Queen on 8 August 1984.

In 2019, the bridge was classified by Historic Environment Scotland as a Category A structure, recognising it as "visually striking and technically innovative". It was also officially renamed to the Gaelic translation of its name, Drochaid a' Chaolais Chumhaing.

The bridge crosses water which is approximately 120 metres (390 ft) wide and up to 25 metres (82 ft) deep, leading to fast tidal currents. It replaced the ferry between Kylesku and Kylestrome, which was approximately 400 metres (1,300 ft) to the east.

The bridge is 276 metres (906 ft) long with a 79-metre-long (259 ft) main span. The bridge deck is at a height of 24 metres (79 ft) above high water to provide navigation for ships.

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