asked the Secretary of State for Wales what is his latest estimate of the completion dates of the sections of the M4 motorway currently under construction; and whether there has been any slippage from the dates previously given.

The Coryton-Castleton section and the widening of the Newport bypass between the Tredegar Park and Malpas interchanges are both expected to be completed in the second quarter of 1980 and the Bridgend northern bypass in the first quarter of 1981. The completion dates of both the Castleton-Coryton section and of the Bridgend northern bypass are later than originally planned.