HC Deb 14 November 1991 vol 198 cc640-1W
163. Mr. Murphy

To ask the Secretary of State for Wales what is the anticipated annual cost of the maintenance of the Penmaenbach tunnel arising from the cracks in the lining of the tunnel.

Sir Wyn Roberts

To date, the only maintenance cost associated with the cracking since the tunnel was opened to traffic in June 1989 is about £2,000 for minor remedial works. Future costs cannot be predicted, but are not expected to be significant.

168. Mr. Murphy

To ask the Secretary of State for Wales what consideration was given in the plans for Penmaenbach tunnel of the possibility of cracking of the lining of the tunnel.

Sir Wyn Roberts

The probability of shrinkage cracking in the tunnel lining was always recognised. The lining's main purpose is to provide a smooth surface to aid illumination and assist ventilation.