HC Deb 29 November 1976 vol 921 c52W
Mr. Grylls

asked the Secretary of State for Transport what is the total cost and the cost per mile of the barriers being erected along the M3 motorway, one mile from Sunbury on the southbound carriageway and on the north-east carriageway close to the M25 interchange at Thorpe; and why this work has been deemed necessary.

Mr. Horam

Four lengths of acoustic fencing, totalling just over one and a quarter miles, are being provided at a cost of £114,235 or approximately £90,000 per mile. These are part of the measures being taken by my right hon. Friend in compliance with his obligation under the Land Compensation Act 1973 to protect nearby properties against noise from the Lightwater-Sunbury length of the M3 motorway.