§ Mr. Wigley
asked the Secretary of State for Wales if he will publish in the Official Report for each section of the M4 completed since 1 January 1976 (a) the estimate of the total cost used in the cost benefit analysis appraisal, (b) the actual total cost after final completion of the scheme and (c) the total cost adjusted to the price level of the base year of the cost benefit analysis appraisal.
§ Mr. John Stradling Thomas
No comparison in the form requested is available since separate economic appraisals were not made for each section of the M4 completed since 1975. The estimated final costs inclusive of land, after final completion of each scheme are as follows:
Sections Completed Since 1 January 1976 £m a. Tredegar Park—St. Mellons 14.9 b. Castleton—Coryton 22.4 c. Coryton—Miskin 26.7 d. Miskin—Pencoed 30.1 e. Pencoed—Stormy Down 40.4 f. Stormy Down—Groes 28.4 g. Pontardulais Bypass 29.4