Dorset County Council’s (DCC) cabinet has decided that soil nailing is the best option for stabilising the slopes above the Beaminster Tunnel following the fatal landslide at the site on 7 July.
The council also consider the possibility of constructing a concrete hood over the existing tunnel portals to protect the A3066 from further landslides, however, this option was this was rejected over concerns that the hood may not withstand further landslide events.
During the meeting, the cabinet agreed that the £2.1M work will be met from its funds but DCC has said that it plans to appeal against a decision from central government that blocked its bid to gain exceptional funding for the scheme.
DCC has said that detailed plans are now being developed ahead of a planning application being submitted for the work but it hopes that the stabilisation work will start on site early next year. The work, which is expected to include strengthening of the tunnel’s masonry headwalls, is expected to take five months to complete.