A830 Arisaig to Loch Nan Uamh Improvements

Environmental restrictions and regulations played a key part in this project to upgrade the last section of single track trunk road in the UK.

Client: The Highland Council
Value: £22.8m
Location: Arisaig

The project involved the design and construction of approximately 7.5km of road of A830 Trunk Road between Arisaig and Loch Nan Uamh, a highly scenic area on the West coast of Scotland. A large section of the road is in a special area of conservation (SAC), so environmental issues were paramount.

The project involved large quantities of earthworks (150,000m3 of peat and 350,000m3 of rock) and the construction of a number of reinforced concrete arch structures to cross the burns and watercourses at Larachmore, Brunery, Borrodale and Beasdale, along with a structure to support the new road at Larachmore Gardens.

As rock blasting took place near to the railway line, possessions had to be booked and blasting designed to minimise the risk of damage to the existing railway infrastructure.

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