A27 Arundel bypass
As the main road serving the south coast, the A27 is a crucial route through the south east. However, as it passes through Arundel it operates well over capacity and causes disruption and severe congestion. National Highways is therefore developing options for how the route could be improved.
Project information
By making changes to the A27 at Arundel we’re aiming to:
- Improve safety
- Increase the capacity of the road
- Reduce congestion and travel time
- Have as little impact as possible on the environment
- Protect and enhance the quality of the surrounding environment through high quality design
- Respect the South Downs National Park and its special qualities in our decision-making
We need this scheme because the A27 through Arundel causes a daily build up of traffic that costs commuters, businesses, communities and visitors valuable time and money. In fact, the congestions costs businesses millions of pounds a year. The road also cuts off communities and makes every day trips longer and more difficult.
Supplementary consultation - 16 November to 16 December
Statutory consultation - 11 January to 8 March 2022
Further review period - 3 February to 1 March 2020
Further options consultation - 30 August to 24 October 2019
Options consultation - July to October 2017
Our surveying teams are working to gather as much information as possible about the site of the proposed A27 Arundel bypass. With landowners’ permission, and working with the relevant local authorities and licensing bodies, our teams will be out and about on site carrying out surveys. You might notice them conducting this vital work, so we’re taking a closer look below to explain what data is being gathered and why it’s so important for our design team.
Archaeological trial trenching
We’re about to begin archaeological investigations, which means we’ll be looking for - and recording - any archaeological findings. You may see some of our archaeology team starting the surveys in September and continuing over the coming months. Whether it’s prehistoric animal bones, stone-age hand tools, medieval farm equipment or Victorian military remains, we’ll carefully record everything we find and produce a report for the public record.
We are working with the archaeology team at West Sussex County Council to plan this work. The results of these surveys will provide our road design team with valuable evidence about the archaeology of the site, allowing us to make sure we’re minimising the impact of the road design on any historical remains we find. We expect most of this archaeology work to take place on weekdays.
Tree surveys
Our Arboricultural team of tree specialists look at the areas on site where existing trees might be affected during the construction of the proposed road. They visit the site and examine the trees, recording information about their location, size, condition, quality and species. Our tree specialists work in small teams and their surveys are not invasive. The tree survey data will be used to inform the design team about trees on site, including their required canopy and root protection zones. Although the proposed route of the road does not pass through any ancient woodland at all, there are still many significant trees on the site and the Arboricultural survey will help us to understand how we can design the road to have the smallest possible impact on existing trees in the area and also where would be the best areas to plant new trees.
Water surveys
Our water survey team are working to gather as much information as possible about surface water conditions at the site of the proposed road – like the condition of rivers and streams, and information about flood plains. This ‘baseline data’ will be gathered by small teams of water surveyors over the coming weeks. You might notice people with bottles gathering water samples from specific points in the streams and rivers on site. This is to make sure we understand as much as possible about the current water quality so that our design team can put in place the best type of drainage measures to protect it as they develop plans for the road. You might also see people using a hand-held ‘flow meter’ – a device that tells us how fast the water is moving along a water course. All these observations are repeated at different times of year to make sure seasonal changes are taken into account.
Ecological surveys
Our ecology team work around the clock to gather information about the ecology of the site. This includes information about the wildlife habitats as well as individual species, and they’ll be looking on land, in the watercourses, and up in the air! Ecologists will be on site most weeks, looking for different things depending on the season and the weather conditions. Surveys are ongoing to look for evidence of animals like bats, great crested newts, otters and water voles – protected species that, if discovered, will be carefully considered as we continue designing the road. This might mean for example avoiding valuable habitat where possible, creating new habitats and planning for the careful relocation of animals.
Due to the nature of the work, our ecology teams might be on site at all times of the day and night. Bat surveying, for example, needs to happen at dusk and into the evening to observe bats entering and leaving their roosts.
The information gathered by the ecologists is vital for the design team, enabling them to make informed decisions about areas of valuable habitat on site and also letting them know where extra habitat might need to be created. You can find out more about the work of the ecology team by watching our video from earlier in the project.
Documents
Feedback form please note this is for printing, filling in by hand and sending back using Freepost A27 ARUNDEL. Note the address must be written in capital letters and you don't need a stamp.
Walberton Traffic Mitigation Assessment technical note
General Arrangement cover sheet
General Arrangement drawing sheets
General Arrangement drawing 2A
General Arrangement drawing 2B
Statement of Community Consultation
PEIR Volume 3
- Figure 1-1
- Figure 2-1
- Figure 6-1
- Figure 6-2
- Figure 6-3
- Figure 7-1
- Figure 7-2
- Figure 7-3
- Figure 7-4
- Figure 7-5
- Figure 7-6
- Figure 7-7
- Figure 7-8
- Figure 7-9
- Figure 7-10
- Figure 7-11
- Figure 8-1
- Figure 8-2
- Figure 9-1
- Figure 9-2
- Figure 9-3
- Figure 9-4
- Figure 11-1
- Figure 11-2
- Figure 11-3
- Figure 11-4
- Figure 12-1
- Figure 12-2
- Figure 13-1
- Figure 13-2
- Figure 13-3
- Figure 13-4
- Figure 13-5
- Figure 13-6
- Figure 15-1
PEIR Volume 4a (Technical Appendices)
PEIR Volume 4b (Technical Appendices)
PEIR Volume 4c (Technical Appendices)
You'll find the following booklets and forms at https://nationalhighways.co.uk/publications/ where you can filter to ‘Land, Property and Compensation’:
Your property and our road proposals
Your property and discretionary purchase
Your property and compulsory purchase
How to claim for the effects on your property of new or altered roads
Claim for compensation
Your property and blight
Your property and compensation or mitigation for the effects of our road proposals
A27 Arundel Bypass Preferred Route Announcement Brochure
A27 Arundel Bypass Preferred Route Announcement Map
A27 Arundel Bypass Report on Further Consultation
A27 Arundel Bypass Report on Further Consultation Appendix A-D1
A27 Arundel Bypass Report on Further Consultation Appendix D2-H
A27 Arundel Bypass Scheme Assessment Report
A27 Arundel Bypass Scheme Assessment Report Appendix A-C
A27 Arundel Bypass Scheme Assessment Report Appendix D-G
Development Consent Order Leaflet
Further review period 2020 (poster)
Further Consultation Brochure Errata (3 Feb 2020)
Combined Modelling & Appraisal Report Errata (3 Feb 2020)
Environmental Sensitivity Testing Technical Note Errata (3 Feb 2020)
Environmental Assessment Report Errata (3 Feb 2020)
Local Roads Study Errata (3 Feb 2020)
Scheme Assessment Report Errata (3 Feb 2020)
South Downs National Park Special Qualities Errata (3 Feb 2020)
Biodiversity Technical Appendices Errata (3 February 2020)
Biodiversity Technical Appendix Attachment A Errata (3 Feb 2020)
Biodiversity Technical Appendix Attachments B-H Errata (3 Feb 2020)
Environmental Assessment report – biodiversity technical appendices errata
Letter to Residents – A27 Arundel Bypass Update
A27 Arundel Bypass Further Consultation Brochure
A27 Arundel Bypass Further Consultation Questionnaire
A27 Arundel Bypass - Approach to public consultation
A27 Arundel Bypass Further Consultation Environmental Assessment Report
Environmental Assessment Report Errata 16 September 2019
A27 Arundel Bypass - Environmental Sensitivity Testing Technical Note
A27 Arundel Bypass Further Consultation Interim Scheme Assessment Report
Interim Scheme Assessment Report Errata 16 September 2019
A27 Arundel Bypass Further Consultation Combined Modelling and Appraisal Report
A27 Arundel Bypass Further Consultation Combined Modelling and Appraisal Report Appendix
A27 Arundel Bypass Further Consultation Satellite Maps 1 of 2
A27 Arundel Bypass Further Consultation Satellite Maps 2 of 2
A27 Arundel Bypass Further Consultation Traffic Heat Maps
A27 Arundel Bypass Further Consultation Scheme Options Map
A27 Arundel Bypass Further Consultation Display Posters
A27 Arundel Bypass Further Consultation Exhibition Banners
A27 Arundel Bypass Further Consultation Exhibition Display Boards
Further Public Consultation Planning Policy Summary
A27 Arundel Bypass - Western tie-in local roads study
A27 Arundel Bypass - Western tie-in local roads study - appendices
Preferred Route Announcement brochure 2018
Report on public consultation 2018
Report on public consultation 2018 - appendix 1
Report on public consultation 2018 - appendix 2
Report on public consultation 2018 - appendix 3
A27 Arundel Bypass - Scheme assessment report
A27 Arundel Bypass - Scheme assessment report - Appendix A
A27 Arundel Bypass - Scheme assessment report - Appendices B,C,D,E
A27 Arundel Bypass Scheme Assessment Report - Erratum
Facilities for Walkers, Cyclists and Horse Riders
Technical Appraisal Appendices A-C
Technical Appraisal Appendices D-E
Technical Appraisal Appendices F-G
Technical Appraisal Appendices H-O
Technical Appraisal Report Addendum
Environment and Appraisal Summary
Environmental Study Report Appendix Part 1
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Elected Representatives Forum - Minutes (February 2023)
Please note this session took place prior to the 10 March Ministerial announcement and therefore the content does not reflect the most recent project update. - Elected Representatives Forum - Minutes (November 2022)
- Elected Representatives Forum - Minutes (July 2022)
- Elected Representatives Forum – Minutes (May 2022) approved with majority approval by the Elected Representatives Forum.
- Elected Representatives Forum - Minutes (February 2022)
- Elected Representatives Forum - Minutes (November 2021)
- Elected Representatives Forum - Minutes (September 2021)
- Elected Representatives Forum - Minutes (July 2021)
- Elected Representatives Forum - Minutes (May 2021)
- Elected Representatives Forum - Minutes (March 2021)
- Elected Representatives Forum - Minutes (September 2019)
- Elected Representatives Forum - Minutes (June 2019)
- Elected Representatives Forum - Minutes (March 2019)
- Elected Representatives Forum - Minutes (November 2018)
- Elected Representatives Forum - Terms of Reference
Technical reports
Highways England Delivery Plan 2015 to 2020
Freedom of information request: A27 Arundel bypass proposals
A27 Arundel Improvement Stakeholder meeting July 2015
A27 Arundel Improvement Stakeholder meeting May 2016
Traffic Data Collection Report
A27 Arundel Bypass update letter to residents
Spotlight on Connecting West Sussex
Connecting West Sussex: The business opportunity of a better A27 at Arundel
Related Road projects

Traffic information
Information about scheduled roadworks and events on our motorways and major roads.X
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