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Caernarfon Bypass, Gwynedd - Temporary Prohibition of Vehicles
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HYSBYSIAD STATUDOL
I gael copi print bras o’r Hysbysiad hwn, ffoniwch 0300 0604400 neu ebostiwch Trafnidiaeth.YGangenOrchmynion@llyw.cymru
GORCHYMYN CEFNFFORDD YR A487 (FFORDD OSGOI CAERNARFON, GWYNEDD) (GWAHARDD CERBYDAU DROS DRO) 2026
MAE GWEINIDOGION CYMRU wedi gwneud Gorchymyn o dan adran 14 o Ddeddf Rheoleiddio Traffig Ffyrdd 1984. Mae angen y Gorchymyn er mwyn gwneud gwaith ar gefnffordd yr A487, neu gerllaw iddi, ger y Caernarfon, Gwynedd.
Effaith y Gorchymyn yw gwahardd dros dro bob cerbyd rhag mynd ar y darn o gefnffordd yr A487 Abergwaun i Fangor o’r enw Ffordd Osgoi Caernarfon sy’n ymestyn o’i chyffordd â Chylchfan Plas Menai hyd at ei chyffordd â Chylchfan y Goat, Gwynedd.
Y llwybr arall ar gyfer traffig sy’n teithio tua’r de o Gylchfan Plas Menai yw mynd ar yr A4871 drwy Gaernarfon i ailymuno â’r A487 wrth Gylchfan y Goat. I’r gwrthwyneb ar gyfer traffig sy’n teithio tua’r gogledd o Gylchfan y Goat.
Daw’r Gorchymyn i rym am 22:00 o’r gloch ar 6 Gorffennaf 2026. Disgwylir y bydd y gwaharddiad dros dro yn weithredol tan 06:00 o’r gloch ar 9 Gorffennaf 2026, neu hyd nes y caiff yr arwyddion traffig dros dro eu symud ymaith yn barhaol.
Dim ond yn ystod y cyfnod a bennir uchod y disgwylir i’r Gorchymyn fod yn weithredol.
Er hynny, bydd yn parhau’n ddilys am gyfnod o 18 mis ar y mwyaf rhag ofn y bydd angen ailamserlennu’r gwaith neu wneud gwaith canlyniadol neu waith arall. Bydd hysbysiad am unrhyw newidiadau i’r amseroedd a’r dyddiadau yn cael ei arddangos cyn gwneud unrhyw waith a ailamserlennir.
Gellir gweld copi o’r Gorchymyn a’r Hysbysiad ar wefan Llywodraeth Cymru ar https://llyw.cymru/gorchmynion-ffyrdd.
C WYNN, Trafnidiaeth, Llywodraeth Cymru
STATUTORY NOTICE
For a large print copy of this Notice contact 0300 0604400 or email Transportordersbranch@gov.wales
THE A487 TRUNK (CAERNARFON BYPASS, GWYNEDD) (TEMPORARY PROHIBITION OF VEHICLES) ORDER 2026
THE WELSH MINISTERS have made an Order under section 14 of the Road Traffic Regulation Act 1984, which is necessary to undertake works on or near the A487 trunk road, near Caernarfon, Gwynedd.
The effect of the Order is to temporarily prohibit all vehicles from proceeding on the length of the A487 Fishguard to Bangor trunk road known as the Caernarfon Bypass that extends from its junction with the Plas Menai Roundabout to its junction with Goat Roundabout, Gwynedd.
The alternative route for southbound traffic from Plas Menai Roundabout is via the A4871 through Caernarfon to rejoin the A487 at Goat Roundabout. Vice versa for northbound traffic from Goat Roundabout.
The Order will come into force at 22:00 hours on 6 July 2026. The temporary prohibition is expected to operate overnight from 22:00 hours until 05:00 hours, on consecutive nights over different lengths to the 9 July 2026, or until the temporary traffic signs are permanently removed.
Although the Order is only expected to be in force during the period specified above, it will remain valid for a maximum period of 18 months, as a contingency, should the work need to be rescheduled or consequential or other work is required.
Notice of any changes to times and dates will be displayed before any rescheduled work begins.
A copy of the Order and Notice can be viewed on the Welsh Government’s website at https://gov.wales/road-orders.
C WYNN, Transport, Welsh Government
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