The Croesbychan junction will connect Hirwaun and Llwydcoed.
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What we’re doing
- moving and re-planting ancient woodland
- laying a temporary road
- moving utilities
- building a bridge over the Vale of Neath railway line
- building a new road and roundabouts
We will build a new junction to replace the existing one. The junction and the road will be built mostly on embankment up to 42 ft (13m) high.
We will also build a viaduct over the Nant Melyn watercourse, which will carry the new A465. The existing Nant Melyn Viaduct will be used by Non-Motorized Users (NMUs) only.
We will build a temporary road to provide space for construction of the permanent road.
The work will be done in phases.
Current progress
We have:
- carried out environmental surveys
- cleared vegetation ready for work to start
- started to prepare the site to move utilities
- built a temporary roundabout to the west of Court Lodge Underbridge
- installed fencing
- built two new permanent roundabouts and connecting roads to update the local road network
- began building the new Nant Melyn Viaduct
- created new habitats for dormice and enhanced existing dormice habitats
- started building the Vale of Neath Railway bridge abutments
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Next steps
- Continue to monitor Dormice habitats
- Ongoing building of Vale of Neath Railway bridge, Croesbychan and Court Lodge underbridges
- Continue building the Nant Melyn Viaduct