• Severe  [C] A546 Maesdu Bridge Llandudno
  • Medium A487 Corris Uchaf
  • Medium A4212 Trawsfynydd
  • Medium A470 Llanrwst Road Eglwysbach
  • Medium A470 Betws-y-coed
  • Medium A4086 Penygwryd - Penpass Gwynedd
  • Medium A487 Corris
  • Medium A494 Dolgellau
  • Medium A4212 Capel Celyn
  • Medium A4085 Beddgelert
  • Medium  [C] A487 Nasareth
  • Medium A497 Efailnewydd
  • Medium A55 Penmaenmawr
  • Medium A487 Caernarfon
  • Medium A499 Llanaelhaearn
  • Medium A546 Deganwy Road Deganwy
  • Medium A494 Rhydymain
  • Medium A470 Dolgellau
  • Medium A493 Machynlleth
  • Medium A4085 Waunfawr
  • Medium A487 Dinas
  • Slight A55 Britannia Bridge Vaynol Hall
  • Slight B4501 Frongoch
  • Slight B4410 Prenteg
  • Slight B4410 Croesor Bridge Prenteg
  • Slight B4418 Nantlle
  • Low Impact Prince Of Wales Road Holyhead