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Following several reactive repairs, we plan to carry out inspections and resurfacing on Wentbridge Viaduct and a pier replacement on Wentedge Road Bridge. This work is substantial and is likely to cause disruption to customers travelling on the A1. Start date February 2023 End date December 2025 Cost £33m Latest updates Overview Documents Latest updates 15 October 2025 A1 northbound due to reopen to two lanes from 24 October From 6am on Friday 24 October, the A1 northbound between Barn…

National Highways’ Improvement Plan following ORR’s Investigation September 2024 Document Control Document Title National Highways’ Improvement Plan following ORR’s Investigation Owner Chief Customer & Strategy Officer Author Performance & Regulatory Compliance (PRC) Division Distribution All Directorates and ORR Document history Revision Description Date Author Notes Version 3.0 Final 19/09/2023 PRC Final Version Submitted to ORR Introduction In February 2024, ORR launched an Investigation into…

National Highways Operational Metrics Manual July 2025 Contents Contents . 2 1. Introduction . 2 Introduction to the Operational Metrics Manual . 2 Background . 2 Description of the Operational metrics manual . 3 Intended audience for the Operational Metrics Manual . 3 2. Governance and assurance of KPI and PI metrics . 3 Governance and sign-off of metrics. 3 Change control. 4 Reporting arrangements . 5 Metric assurance . 5 3. Performance monitoring and reporting overview. 5 The Performance Spec…

M25 junction 30/A13 Congestion Relieving Project Five-year post-opening project evaluation This document has been prepared by National Highways with assistance from its consultants (where employed). The document and its accompanying data remain the property of National Highways. While all reasonable care has been taken in the preparation of this document, it cannot be guaranteed that it is free of every potential error. In the absence of formal contractual agreement to the contrary, neither Nati…

Authorities Bundle Index Case No (1) QB-2021-003576 (2) QB-2021-003626 and (3) QB-2021- 003737 Applicants NATIONAL HIGHWAYS LIMITED Defendant(s) (1)PERSONS UNKNOWN CAUSING THE BLOCKING OF, ENDANGERING, OR PREVENTING THE FREE FLOW OF TRAFFIC ON THE M25 MOTORWAY, A2 A20 AND A2070 TRUNK ROADS AND M2 AND M20 MOTORWAY, A1(M), A3, A12, A13, A21, A23, A30, A414 AND A3113 TRUNK ROADS AND THE M1, M3, M4, M4 SPUR, M11, M26, M23 AND M40 MOTORWAYS FOR THE PURPOSE OF PROTESTING (2)MR ALEXANDER RODGER AND 138…

M6 and M1 smart motorways Incident and infrastructure investigations – summary report Incident and infrastructure investigations – summary report Introduction Our thoughts are with all those affected by incidents on our network, and we recognise the importance of this work, both in terms of taking it forward quickly and also getting it right. Last year’s Smart motorway evidence We commissioned independent investigations at the four locations. In response stocktake and action plan [1] , sought to…

Keeping our major roads running all year round Annual report and accounts 2025 CP 1353 Keeping our major roads running all year round Annual report and accounts 2025 (For the financial year ended 31 March 2025) Presented to Parliament by the Secretary of State for Transport by Command of His Majesty 17 July 2025 CP 1353 © Crown copyright 2025 This publication is licensed under the terms of the Open Government Licence v3.0 except where otherwise stated. To view this licence, visit nationalarchive…

Exposure Thresholds Likelihood (vulnerability) matrix Exposure N VL L M H VH Rating 1 2 3 4 5 6 Climate Variable Unit N VL L M H VH Sensitvity Low 1 Highly Unlikely Highly Unlikely Highly Unlikely Unlikely Possible Likely Extreme precipitation % change 0 8.74 15.84 22.93 48.05 73.18 Medium 2 Highly Unlikely Highly Unlikely Unlikely Possible Likely Almost Certain Mean precipitation % change 0 3.77 5.45 7.13 13.08 19.03 High 3 Highly Unlikely Unlikely Possible Likely Almost Certain Almost Certain …

Travel time reporting tool Technical guidance note October 2024 This document, the accompanying tool and data have been prepared by National Highways with assistance from its consultants (where employed). The document and its accompanying tool and data remain the property of National Highways. While all reasonable care has been taken in the preparation of this document, tool and data, they cannot be guaranteed free of every potential error. Use of this document, tool and data is at your own risk…

NATIONAL HIGHWAYS Asset Management Development Group ASSET DATA MANAGEMENT MANUAL Part 4 – Asset Reference Catalogue October 2021 Version: 13.0 Revision Sheet For revisions across all ADMM documents see the Revision Log available on Standards for Highways: http://www.standardsforhighways.co.uk/ha/standards/admm/index.htm Version Date Issued April 2016 September 2016 March 2017 September 2017 March 2018 October 2018 April 2019 10.0 October 2019 11.0 April 2020 12.0 October 2020 13.0 October 2021 …