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We want to improve journey times, safety and reduce pollution.

First published:
10 January 2018
Last updated:

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Project status: planned
Region/county: north/south corridor
Start date: autumn 2017 (WelTAG Stage 1)
End date: early 2025
Cost: £50 million
Contractors: to be appointed
Registered with considerate constructors scheme: not yet

Current progress

We completed a WelTAG Stage 1 appraisal that identified a short list of options. We consulted on the options in spring 2019. We reviewed responses to the consultation and identified 4 options.

In 2007 we protected a route through Llandeilo via a TR111 notice. This notice safeguards a corridor of land to prevent any development along it. Whilst this notice is still in place it has no bearing on the current WelTAG process.


Award of consultant: winter 2018
WelTAG stage 1: spring 2018 to spring 2019
WelTAG stage 2: spring 2019 to spring 2022

How we are consulting

We will hold public forums at the end of each WelTAG stage. We consulted in autumn 2020.

Next steps

Following the consultation, the WelTAG review group will consider all of your feedback and will recommend a preferred option by summer 2022.