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| Route information | ||||
| Maintained by English local authorities and South Wales Trunk Road Agency | ||||
| Length | 66 mi (106 km) | |||
| Major junctions | ||||
| West end | Llandarcy 51°38′57″N 3°50′55″W / 51.6492°N 3.8486°W | |||
 M4 Junction 43A48  A474 A4230 A4109 A4061 A4059 A470 A4054 A4060 A469 A4048 A4046 A4047 A467 A4077 A4143 A4042A40 A49 | ||||
| East end | Bromyard, Herefordshire 52°11′13″N 2°30′50″W / 52.1870°N 2.5139°W | |||
| Location | ||||
| Country | United Kingdom | |||
| Primary destinations | Neath Merthyr Tydfil Abergavenny Hereford | |||
| Road network | ||||
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The A465 is a trunk road that runs from Bromyard in Herefordshire, England to Llandarcy near Swansea in south Wales. The western half in Wales is known officially as the Neath to Abergavenny Trunk Road,[1] but the section from Abergavenny to the Vale of Neath is more commonly referred to as the Heads of the Valleys Road because it links the northern heads of the South Wales Valleys. That section was also the subject to an improvement programme which sections 1 to 4 are complete (Abergavenny to Dowlais Top), and sections 5 to 6 under construction (Dowlais Top to Hirwaun). The upgrade program is due to finish in 2025. Approximately following the southern boundary of the Brecon Beacons National Park, the Ordnance Survey Pathfinder guide describes it as the unofficial border between rural and industrial South Wales.[2] The A465 provides an alternative route between England and the counties in South West Wales and to the ferries to Ireland.[3]
- ^ "A465 HEADS OF THE VALLEYS DUALLING SECTION 3: BRYNMAWR TO TREDEGAR" (PDF). Carillion plc. Archived from the original (PDF) on 2 April 2015. Retrieved 10 March 2015.
- ^ OS Pathfinder Guide, Brecon Beacons and Glamorgan. Ordnance Survey 1994.
- ^ Welsh Government – A465 (Heads of the Valleys Road) – Dualling Scheme Archived 16 May 2013 at the Wayback Machine