asked the Secretary of State for Transport if he will detail the impediments to an earlier start on the Reigate to Leatherhead section of the M25 which are preventing completion before 1985.

Following my right hon. Friend's decision to accept the inspector's recommendation to lower part of the motorway route between Reigate and Leatherhead, it has been necessary to undertake some redesign and further statutory procedures. Subject to the completion of this further work, and of the contract documents, I hope that it will be possible for construction to start next summer, for completion in the spring of 1985 at about the same time as the Leatherhead interchange for which we awarded the contract this week.