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CONTRACTS

CONTRACTS

in Scotland, Norwest Holst has completed ground investigation work for the A830 Arisaig to Loch Nan Uamh road to determine the ground conditions for the new alignment.

The £190,000 ground investigation for Highlands Council comprised trial pitting, cable percussive drilling, rotary rock drilling with core extraction, CCTV and Televiewer survey, three-arm calliper with natural gamma logging, installation of standpipes, inspection pits, pavement cores in the carriageway, along with sampling and insitu testing.

The entire investigation was carried out in environmentally sensitive areas with a number of borehole positions in a Site of Special Scientific Interest and a candidate Special Area of Conservation. Work was further complicated by difficult access for a number of positions.

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