A MISSION to remove and replace an unstable 30m stretch of brick lined tunnel was recognised with an award at the recent Yorkshire Association presidential visit.
The £2M reconstruction of the Horsfall Tunnel at Todmorden on the Manchester to Normanton railway line was needed after over 160 years of geological movement had distorted the 1837-built tunnel.
Railtrack project manager Kevin Turner said: 'We decided the best solution was to actually rebuild the northern entrance to the tunnel, while stabilising the hillside. 'We initially constructed a reinforced concrete retaining wall to secure the hillside before demolishing the existing portal and completely reconstructing it.'
Presenting the award, ICE President Roger Sainsbury said: 'This is a terrific example of teamwork delivering a technically very complex project in difficult ground conditions and to a very tight timescale. All those involved with the scheme should be justifiably very proud.'
Railtrack's rescue programme was carried out by Kvaerner Cementation Foundations and Kvaerner Construction. Arup and Hyder were also on board.