Monmouthshire Council

Monmouthshire County Council is the Highway Authority responsible for all public roads in the Monmouthshire principal area other than those managed by the South Wales Trunk Road Agent (SWTRA) on behalf of the Welsh Government.

Primary Destinations

The following Primary Destinations are located within the council area:

• Abergavenny
• Chepstow
• Monmouth

Trunk Roads

The following roads that run through the council area are at least partially Trunk Roads, and therefore managed by the South Wales Trunk Road Agent:

• M4
• M48
• A40
• A48 (east of A446)
• A449
• A465
• A466 (south of A48)
• A4042

Principal and Classified Numbered Roads

The following is a list of A and B classified roads that are at least partially managed by the council:

Route	From	To	Length
A48	Highnam, Gloucester	Carmarthen	119 miles	View
A466	King's Thorn	Chepstow Interchange	30 miles	View
A472	Usk	Abercynon	23.7 miles	View
A4077	Glanbaiden	Crickhowell	4.4 miles	View
A4136	Huntley	Monmouth	16.6 miles	View
A4143	Llanfoist	Abergavenny	0.7 miles	View
A4810	Magor	Liswerry	5.5 miles	View
B4233	Abergavenny	Monmouth	14.2 miles	View
B4235	Usk (E)	Chepstow	11.7 miles	View
B4245	Langstone	Parkwall Roundabout	9.9 miles	View
B4246	Pontnewynydd	Abergavenny	12.8 miles	View
B4248	Blaenavon	Brynmawr	4.5 miles	View
B4269	Llanfoist	Llanellen	1.9 miles	View
B4293	Monmouth	Chepstow	16.2 miles	View
B4347	Vowchurch	Rockfield	19.1 miles	View
B4521	Abergavenny	Old Pike, Peterstow	18.9 miles	View
B4598	Abergavenny	Usk	9.7 miles	View

Classified Unnumbered (Class III) Roads

Main Article: Monmouthshire Council (Class III roads)

For their Class III road network, Monmouthshire Borough Council appear to use "R" prefixes.

Junctions

Main Article: Monmouthshire Council (Junctions)

Bridges, Tunnels, and other Crossings

Main Article: Monmouthshire Council (Crossings)

Links

• Monmouthshire County Council website