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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.

Abbey Way Gyratory • Abergwili Roundabout • Arle Court Roundabout • Asthall Barrow Roundabout • Bank • Benhall Roundabout • Blackbridge Roundabout • Bridgend Square • Brynich roundabout • Burford Roundabout • Canaston Bridge Roundabout • Coxs Meadow • Cutteslowe Roundabout • Denham Roundabout • Ealing Common • Eden Roundabout • Elmbridge Court Roundabout • Eynsham Roundabout • Forest Gate Junction • Gipsy Corner • Golden Valley Junction • Greenford Roundabout • Hanger Lane Gyratory • Hardwick Gyratory • Headington Roundabout • Highnam Corner • Highnam Roundabout • Hildersley Roundabout • Hillingdon Circus • Holborn Circus • Holland Park Roundabout • Holtspur Temporary Terminal • Holtspur Roundabout • Knaves Beech Interchange • Lancaster Gate Gyratory • Llanboidy Road Roundabout • Llandeilo Roundabout • London End Roundabout • Marble Arch • Marston Interchange • Marylebone Flyover • Old Beaconsfield Roundabout • Over Ross Roundabout • Over Roundabout • Oxford Circus • Paddington Interchange • Pedestal Roundabout • Penblewin roundabout • Pensarn Roundabout • Perivale • Polish War Memorial • Pont Lesneven roundabout • Prendergast Roundabout • Pyebush Roundabout • Rafael roundabout • Raglan Interchange • Raglan Roundabout • Robeston Wathen Roundabout • Salutation Square • Savoy Circus • Scotchwell roundabout • Shepherds Bush Green • Square and Compass • St Giles Circus • St Pauls Gyratory • St Clears Roundabout • Stokenchurch Interchange • Sturt Farm Interchange • Swakeleys Roundabout • Tarell roundabout • Target Roundabout • Three Pigeons • Travellers Rest (Carmarthen) • Weston Cross • Westway Roundabout • Wheatley Interchange • Wilton Roundabout (Ross) • Windyhall roundabout • Withybush roundabout • Wolvercote Roundabout • Wood Lane
Related Pictures
View gallery (330)
A40 - Coppermine - 15894.jpgPassing through the Monmouth Tunnel - Geograph - 507776.jpgThe A40 between Witney and Barnard Gate - Geograph - 349808.jpgOver Roundabout 1972.pngA40 at Uxbridge - Geograph - 3576456.jpg
Other nearby roads
A40 • A48 • A49 • A449 • A4137 • A4149 • A4152 • B4221 • B4228 • B4234 • B4260 • Herefordshire Cider Route • M50 • T43 (Britain) • T78 (Britain)

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