A43 Trunk Road & Connecting Road (From Ardley to Brackley & From Towcester to Rothersthorpe) - Temporary Prohibition of Traffic

National Highways

ROAD TRAFFIC REGULATION ACT 1984 -
SECTIONS 4(1),14(1)(a) AND (c), (4) AND (7)
THE A43 TRUNK ROAD AND CONNECTING
ROADS (FROM ARDLEY TO BRACKLEY AND
FROM TOWCESTER TO ROTHERSTHORPE)
(TEMPORARY PROHIBITION OF TRAFFIC) ORDER 2025

NOTICE IS HEREBY GIVEN that National Highways Limited (Company No. 09346363) intends to make an Order on the A43 Trunk Road, in West Northampton and Oxfordshire,  to enable maintenance and improvement works, to be carried out in safety.

The works are expected to take place overnight between 19:00 and 06:00 (07:00 on Saturday and Sunday mornings) during a period starting on Friday 2nd January 2026 and ending on Wednesday 23rd December 2026.

The effect of the Order will be to impose prohibitions on the following lengths of carriageway:

(1)  the A43 northbound and southbound between its roundabout junction with the B430 and the M40 Junction 10 slip roads, at Ardley, and its roundabout junction with the A421 and the B4031, at Brackley, including those roundabouts;

(2)  the A43 northbound and southbound between its roundabout junction with the A5 and Towcester Road, at Towcester and its roundabout junction with the A5123 at Rothersthorpe (Rothersthorpe North Roundabout), including those roundabouts;

(3)  the A43 westbound from its junction with the southern roundabout of the A43 at M1 Junction 15a, to its junction with the M1 northbound entry slip road at Junction 15a;

(4)  the A43 westbound and eastbound between the junction with Rothersthorpe North Roundabout, and the roundabout junction with Swan Valley Way and the M1 southbound junction 15a slip roads (Swan Valley Way Roundabout), at Rothersthorpe, including those roundabouts;

(5)  any slip road, link road or dedicated lane leading to or from the lengths of carriageway described in (1) and (3) above;

(6)  any lay-by, service road or bus stop area adjacent to the lengths of carriageway described in (1) and (3) above.

During any road closures traffic will be diverted via alternative junctions of the A43 Trunk Road and local roads. These diversions will be clearly indicated by traffic signs throughout the area.

To obtain a copy of the A43 Programme of Works please contact the National Highways Customer Contact Centre on 0300 123 5000 or info@nationalhighways.co.uk.

The duration of each prohibition will vary depending upon the nature of the work being undertaken on each occasion.

The prohibitions will not apply to emergency services, works, or winter maintenance vehicles. The prohibitions will only apply during such times and to such extent as shall be indicated by traffic signs.

The Order comes into force on 27 December 2025 and will expire on 23 December 2026.

Karen Eustace, an official of National Highways Limited,
Three Snowhill, Snow Hill Queensway, Birmingham, B4 6GA

National Highways Limited, Bridge House,
1 Walnut Tree Close, Guildford, GU1 4LZ.

Registered in England & Wales number 09346363.