HC Deb 30 November 1971 vol 827 c84W
Mr. Astor

asked the Secretary of State for the Environment when he anticipates that the M4 extension through Berkshire will be open to traffic.

Mr. Michael Heseltine

Progress by the contractors is well advanced, and it is planned to open the whole stretch of the M4 between Liddington and Maidenhead on 22nd December, completing the motorway between London and Newport.