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M4 Motorway, Junction 16 To 17 - Temporary Restriction And Prohibition Of Traffic To Maintenance Works
What is happening?
ROAD TRAFFIC REGULATION ACT 1984 - SECTION 14(1)(a)
THE M4 MOTORWAY (JUNCTION 16 TO 17)
(TEMPORARY RESTRICTION AND PROHIBITION OF TRAFFIC) ORDER 2026
NOTICE IS HEREBY GIVEN that National Highways Limited (a) intends to make an Order on the M4 Motorway in Wiltshire to allow geotechnical and associated maintenance to be carried out in safety.
The works are expected to take place commencing on or after 30 October 2026 and be completed by 4 October 2027.
The effect of the Order would be to:
(a) impose a mandatory 50 mph speed limit on the M4:
(i) eastbound from Church Lane overbridge to Junction 16;
(ii) westbound from Junction 16 to Olivemead Access overbridge;
(iii) westbound entry slip road at Junction 16;
(b) prohibit vehicles over 2.00 meters in width from the outside lane of the M4 between Olivemead Access overbridge and 800 metres east of Hook overbridge:
(c) authorise the operation of a contraflow on the M4 westbound from Olivemead Access overbridge to 800 metres east of Hook overbridge;
(d) authorise the closure overnight (20.00 to 06.00) of:
(i) the M4 eastbound and westbound between Junctions 16 and 17;
(ii) the eastbound entry slip road at Junction 17;
(iii) the westbound entry slip road at Junction 16;
There would also be hard shoulder running through the works.
During the closures traffic would be diverted via junctions of the M4 and local roads.
The speed limit (which would not apply to emergency service vehicles), width restrictions, contraflow and closures would be clearly indicated by traffic signs throughout the works.
The Order would come into force on 28 October 2026 and have a maximum duration of 18 months.
Paul Edwards, National Highways Company Limited
(a) Registered in England and Wales under company no. 9346363. Registered office Three Snowhill, Snow Hill Queensway, Birmingham, B4 6GA.
General Enquiries relating to this notice may be made in writing to the Project Manager, Richard Williams at National Highways Ltd, Brunel House, 930 Hempton Court, Aztec West, Almondsbury, Bristol, BS32 4SR, by telephoning 0300 470 4285 or by email to richard.williams2@nationalhighways.co.uk.
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