We propose to build a bypass around the northern side of Llanddewi Velfrey.

First published:
25 August 2006
Last updated:

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Project status: PlannedEU funds in Wales
Region/county: South west Wales
Start date: summer 2021
End date: autumn 2022
Cost: £45 million, we have secured £23 million EU funding for the project
Designers: Arup with environmental design provided by RML

Why we are doing it

The A40 between St Clears and Haverfordwest is mainly a single carriageway.

Current issues are:

  • few places for overtaking slower vehicles
  • poor visibility
  • many accesses opening on to the road
  • summer traffic can increase by over 30%
  • the road splits the community
  • the A40 runs through Llanddewi Velfrey where there is a 40mph speed limit.

This means that journey times are poor. The road is dangerous for drivers as they may take bigger risks when passing slower vehicles.

We identified in the A40 West of St Clears study that there was a need for this scheme. We revisited and updated the study in 2015 to confirm that we should go ahead with this project.

The scheme

The scheme consists of:

  • a 2.5km bypass from Bethel Chapel to Ffynnon Wood
  • 2.5km improvements west of Ffynnon Wood
  • 1.4km extra overtaking eastbound
  • 1km extra overtaking westbound

The bypass will rejoin the existing road at Penblewin roundabout.

The objectives are:

  • to enhance network resilience and improve accessibility along the east-west transport corridor to key employment, community and tourism destinations
  • to improve prosperity and provide better access to the county town of Haverfordwest, the Haven Enterprise Zone and the West Wales ports at Fishguard, Milford Haven and Pembroke Dock
  • to reduce community severance and provide health and amenity benefits
  • to reduce the number and severity of collisions
  • to promote active travel by cycling, horse riding and walking to provide opportunities for healthy lifestyles
  • to deliver a scheme that promotes social inclusion and integrates with the local transport network to better connect local communities to key transport hubs
  • deliver a project that is sustainable in a globally responsible Wales, taking steps to reduce or offset waste and carbon
  • give due consideration to the impact of transport on the environment and provide enhancement when practicable

Current progress

We announced our preferred route in March 2010.

In the 2015 update of the study, we considered options for improvements along the A40. This included the feasibility of dualling the road.

We appointed Arcadis as an employer's agent in October 2015. They will support us to deliver the scheme.

We carried out initial ground investigation in spring 2016. We completed ecological surveys in summer 2016.

We appointed Carillion PLC, supported by Arup and RML, as design & build contractor in January 2017 and held Public exhibitions in April and October 2017.

Following Carillion PLC’s liquidation we appointed Arup to finish the preliminary design. They will also take the scheme through the statutory process. A further procurement exercise will take place to appoint a new contractor to build the road.


Publication of draft orders: spring 2019
Statutory process: spring 2019 to early 2020
Public local inquiry (if required): spring 2020
Procurement of contractor: early 2020 to summer 2021
Construction starts: summer 2021
Construction ends: autumn 2022

How we are consulting

We undertook a public consultation in 2006 as part of the process to develop the preferred route. We engaged with Pembrokeshire businesses during the 2015 study.

We held two public exhibitions at the Llanddewi Velfrey Village hall in April and October 2017.

We met with local councils, landowners and businesses and will continue to meet. 

A draft Orders exhibition will take place in Llanddewi Velfrey in mid 2019.

Arup have appointed a dedicated Public Liaison Officer for the scheme.

Next steps

Arup will complete the outline design and detailed environmental impact assessment. This will help us to identify the land required to build the scheme. We then need to proceed through the statutory process and seek the powers to build the road.

The draft orders for this scheme will be available in May 2019. A draft Orders exhibition will take place in the local community around the same time. Draft Orders give you the option to object, support or suggest alternatives.

As part of the legal process we will consider all the responses. We can then decide whether to hold a public local inquiry

Find out more

If you have any concerns or queries you can contact Martin Gallimore, Arup’s Public Liaison Officer, directly on 07923 887119 or alternatively email:  A40enquiries@arup.com