A40/Ross - Abergavenny

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From:  Ross on Wye (SO606255)
To:  Abergavenny (SO303128)
Via:  Monmouth
Meets:  A449, B4234, A49, B4260, A4137, B4164, A466, B4293, A465, B4598, A4042, B4233, B4521
Former Number(s):  A48, B4234, A471
Old route now:  B4260, A49, B4521
Highway Authorities

Highways England • South Wales Trunk Road Agent


Herefordshire • Monmouthshire

Route outline (key)
Arrowwest.jpg West Abergavenny - Brecon
A40 Ross - Abergavenny
East Arroweast.jpg Cheltenham - Ross

The A40 today avoids the centre of Ross on Wye, passing to the east and north of the town. At the point where the bypass makes its turn from north- to southwestbound it meets the Stafford to Ross section of the A449, which here has the additional role of carrying traffic to and from the western terminus of the M50, lying just 750 m away. The A449 will be subsumed by the A40 for the next 28 km through Monmouth to the point, just east of Raglan, where it springs back into life and continues its own, separate way to Newport.

1952 OS map showing the pre-bypass route of the A40 at Monmouth

This dual-carriageway section of the A40 is essentially an almost-motorway-standard extension of the M50, following the Wye Valley (although the river itself is not often to be seen, particularly in the section close to Symonds Yat where the road cuts through the hills, avoiding the Wye bends) before crossing into Wales just short of Monmouth. At Monmouth a headland separating the rivers Monnow and Trothy is pierced by a short tunnel and near Raglan, as noted earlier, the A40 and A449 part company, with the A40 striking west towards Abergavenny to meet the Heads of the Valleys Road (A465).


As originally conceived, the A40 took a shorter (as the crow flies, but in practice much twistier) route from Ross to Abergavenny, following the present A49 through Peterstow to Old Pike, then what is now the B4521 to Abergavenny.

Knaves Beech Interchange • Shepherds Bush Green • Golden Valley Junction • Holtspur Temporary Terminal • Marble Arch • Marylebone Flyover • Hanger Lane Gyratory • Denham Roundabout • Three Pigeons • Wheatley Interchange • Stokenchurch Interchange • Holborn Circus • Wolvercote Roundabout • Headington Roundabout • Target Roundabout • Hillingdon Circus • Wood Lane • Westway Roundabout • Holland Park Roundabout • Savoy Circus • Gipsy Corner • Perivale • Pyebush Roundabout • Pedestal Roundabout • Cutteslow Roundabout • Greenford Roundabout • Polish War Memorial • Swakeleys Roundabout • Burford Roundabout • Coxs Meadow • Benhall Roundabout • Over Roundabout • Highnam Roundabout • Wilton Roundabout (Ross) • Arle Court Roundabout • Elmbridge Court Roundabout • Ealing Common • Windyhall roundabout • Rafael roundabout • Withybush roundabout • Penblewin roundabout • Brynich roundabout • Salutation Square • Bank • London End Roundabout • Old Beaconsfield Roundabout • Holtspur Roundabout • Eden Roundabout • Abbey Way Gyratory • Tarell roundabout • Hardwick Gyratory • Paddington Interchange • Over Ross Roundabout • Raglan Interchange • Forest Gate Junction • Highnam Corner • Scotchwell roundabout • Oxford Circus • St Giles Circus • Lancaster Gate Gyratory • St Pauls Gyratory • Blackbridge Roundabout • Llanboidy Road Roundabout • Robeston Wathen Roundabout • Canaston Bridge Roundabout • Bridgend Square • Prendergast Roundabout • Asthall Barrow Roundabout • Eynsham Roundabout • Weston Cross • Hildersley Roundabout • Raglan Roundabout • Square and Compass • Llandeilo Roundabout • Abergwili Roundabout • Pensarn Roundabout • Lesneven Roundabout • Travellers Rest (Carmarthen)
Related Pictures
View gallery (324)
Footbridge to Abergwili - Coppermine - 21944.jpgApproaching Huntley from the east - Geograph - 1680428.jpgA418 M40 J8a sign.jpgRoss-on-Wye Rowing Club - Geograph - 1135300.jpgApproaching Raglan roundabout from the south - Geograph - 299483.jpg
Other nearby roads
A49 • A449 • A4149 • M50 • B4228 • A4137 • B4260 • B4234 • A4152 • B4221 • A40 • A48 • T43 (Britain) • T78 (Britain) • Herefordshire Cider Route