To ask the Secretary of State for Transport what is the nature and function of the works unit off the eastbound carriageway of the M4 between junctions 14 and 13; what was the cost of erecting the "works unit only" signs for the works unit; when the road between the works unit and the motorway was completed; what was the cost of the road between the works unit and the motorway; and from which subheads of which votes this money was taken.
The works unit referred to is RAF Welford which is made available to the United States air force for conventional munitions storage. The "works unit only" signs which are to the conventional red, white and black design as used for MoD establishments cost £6,634·83 to provide and erect. The entry and exit slip roads, to and from the motorway, were completed on 17 December 1982 and 2 July 1985 respectively. The final cost of the construction of the slip roads was £377,081·84. All the works costs were funded by United States air force, which also contributed towards administration expenses.