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Gwynedd Council

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Gwynedd Council
Cyngor Gwynedd
Location Map ( geo)
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Caernarfonshire • Merionethshire
Primary Destinations
Bala • Bangor • Caernarfon • Porthmadog
Other Important Destinations
Blaenau Ffestiniog • Pwllheli • Y Felinheli
Conwy • Denbighshire • Isle of Anglesey • Powys
Welsh Government Roads
A5 • A55 • A458 • A470 • A487 • A494

Gwynedd Council is the Highway Authority responsible for all public roads in the Gwynedd principal area other than those managed by the North and Mid Wales Trunk Road Agent (NMWTRA) on behalf of the Welsh Government.

Primary Destinations

The following Primary Destinations are located within the council area:

Trunk Roads

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

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


A5 London Holyhead 252 miles View
A487 Haverfordwest Menai Bridge 173.8 miles View
A493 Dolgellau Machynlleth 33.3 miles View
A496 Llanelltyd Blaenau Ffestiniog 32.8 miles View
A497 Minfford Nefyn 22.5 miles View
A498 Porthmadog Pen-y-Gwryd 14.8 miles View
A499 Llanwnda Abersoch 23.7 miles View
A4085 Penrhyndeudraeth Caernarfon 19.7 miles View
A4086 Caernarfon Capel Curig 17.9 miles View
A4087 Bangor Capel-y-Graig 3.2 miles View
A4212 Trawsfynydd Bala 17.3 miles View
A4244 Brynrefail Llys-y-gwynt 6.6 miles View
A4971 Bodawen Porthmadog 2.5 miles View   
B4354 Chwilog(E) Tan-y-graig 9.2 miles View
B4366 Caernarfon Groeslon roundabout 5.3 miles View
B4391 Pont Tal-y-bont Pont Felin Newydd 39.7 miles View
B4401 Tre'r-Llan Corwen 11.0 miles View
B4402 Pont Caletwr Bethel 3.5 miles View
B4403 Llanuwchllyn Pont Mwngwl-y-llyn, Bala 5.2 miles View
B4404 Pont Felin-y-ffridd Cemmaes Road 4.4 miles View
B4405 Minffordd Bryncrug 9.9 miles View
B4407 Pont yr Afon Gam Pentrefoelas (W) 9.9 miles View
B4409 Bethesda Glasinfryn 3.2 miles View
B4410 Tan-y-bwlch Prenteg 5.4 miles View
B4411 Glan-Dwyfach Criccieth 4.3 miles View
B4412 Bryncynan Inn Morfa Nefyn 1.1 miles View
B4413 Aberdaron Llanbedrog 12.7 miles View
B4415 Nanhoron Efailnewydd 6.1 miles View
B4416 Pont ar Ddibyn Bont Newydd 2.1 miles View
B4417 Pen-y-groeslon Llanaelhaearn 16.2 miles View
B4418 Penygroes Rhyd Ddu 7.5 miles View
B4419 Victoria Dock, Caernarfon St David's Road roundabout 0.86 miles View
B4501 Fron-goch Denbigh 24.3 miles View
B4547 Capel-y-graig Groeslon roundabout 2.1 miles View
B4573 Harlech Glan-y-wern 3.7 miles View
B5107 Caernarfon Road Holyhead Road 0.1 miles View      


Main Article: Gwynedd Council (Junctions)

Bridges, Tunnels, and other Crossings

Main Article: Gwynedd Council (Crossings)


Gwynedd Council
A5 • A487 • A493 • A496 • A497 • A498 • A499 • A4085 • A4086 • A4087 • A4212 • A4244 • A4871 • A4971 • B4354 • B4366 • B4391 • B4401 • B4402 • B4403 • B4404 • B4405 • B4407 • B4409 • B4410 • B4411 • B4412 • B4413 • B4415 • B4416 • B4417 • B4418 • B4419 (Caernarfon) • B4501 • B4547 • B4573 • B5107 • Ffordd Arfordirol • Ffordd Cambria
Highways Authorities in Wales
Trunk Road AgentsNorth & Mid Wales TRA • South Wales TRA
Principal AreasBlaenau Gwent • Bridgend • Caerphilly • Cardiff • Carmarthenshire • Ceredigion • Conwy • Denbighshire • Flintshire • Gwynedd • Isle of Anglesey • Merthyr Tydfil • Monmouthshire • Neath Port Talbot • Newport • Pembrokeshire • Powys • Rhondda Cynon Taf • Swansea • Torfaen • Vale of Glamorgan • Wrexham

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