Monmouthshire - Temporary Traffic Prohibitions & Speed Restrictions for Trunk Road Works

HYSBYSIAD STATUDOL

I gael copi print bras o’r Hysbysiad hwn, ffoniwch 0300 0604400 neu ebostiwch Trafnidiaeth.YGangenOrchmynion@llyw.cymru

GORCHYMYN CEFNFFYRDD YR A449 A’R A40 (CYFNEWIDFA COLDRA, CASNEWYDD I FFIN CYMRU/LLOEGR, SIR FYNWY) (GWAHARDDIADAU A CHYFYNGIADAU TRAFFIG DROS DRO) 202-

MAE GWEINIDOGION CYMRU yn bwriadu gwneud Gorchymyn o dan adran 14 o Ddeddf Rheoleiddio Traffig Ffyrdd 1984 ymhen dim llai na 7 niwrnod i ddyddiad yr Hysbysiad hwn. Mae angen y Gorchymyn er mwyn gwneud gwaith ar gefnffyrdd yr A449 a’r A40, neu gerllaw iddynt, rhwng Cyfnewidfa Coldra, Casnewydd a Ffin Cymru/Lloegr, i’r gogledd o Drefynwy, Sir Fynwy.

Effaith y Gorchymyn arfaethedig fydd gwneud y canlynol dros dro:

i. gwahardd pob cerbyd, ac eithrio’r rhai a ddefnyddir gan y gwasanaethau brys neu ar gyfer y gwaith, rhag mynd ar y darnau o gefnffyrdd yr A449 a’r A40 a bennir yn Atodlen 1 i’r Hysbysiad hwn. Disgrifir y llwybrau eraill yn yr Atodlen honno hefyd.

ii. gosod terfyn cyflymder o 50 mya, 40 mya neu 10 mya ar y darn o gefnffordd yr A40 a’r A449 a bennir yn Atodlen 2 i’r Hysbysiad hwn. Disgwylir mai dim ond yn ystod gwaith confoi y bydd y terfyn cyflymder o 10 mya yn weithredol ac ni chaniateir goddiweddyd ar yr adegau hyn.

Daw’r Gorchymyn i rym ar 17 Awst 2026. Disgwylir y bydd y gwaharddiadau a’r cyfyngiadau dros dro yn weithredol yn ysbeidiol dros nos (20:00 – 06:00 o’r gloch) o’r dyddiad hwnnw am gyfnod o 18 mis ar y mwyaf. Bydd hysbysiad am gau’r ffyrdd yn cael ei arddangos cyn i unrhyw waith ddechrau.

C WYNN, Trafnidiaeth, Llywodraeth Cymru

ATODLEN 1

Gwahardd cerbydau dros dro a llwybrau eraill

1. Y darn o gefnffordd yr A449 sy’n ymestyn o’i chyffordd â cherbytffordd gylchredol Cyfnewidfa Coldra, Casnewydd (Cyffordd 24 yr M4) hyd at ganolbwynt Cyfnewidfa Rhaglan yr A449/A40, Sir Fynwy.

Y llwybr arall ar gyfer cerbydau nad ydynt yn gerbydau trafffordd ac sy’n teithio tua’r gogledd yw mynd ar hyd Ffordd Ddosbarth Deheuol yr A48 tua’r gorllewin i Gylchfan Grove Park, ar hyd yr A4042 i Gylchfan Hardwick ac ar hyd yr A40 tua’r dwyrain i Gyfnewidfa Rhaglan: i’r gwrthwyneb ar gyfer traffig sy’n teithio tua’r de.

Y llwybr arall ar gyfer traffig trafffordd sy’n teithio tua’r gogledd yw mynd ar hyd yr M4 tua’r gorllewin o Gyffordd 24 i Gyffordd 25A (Grove Park) ac yna dilyn y llwybr a ddisgrifir uchod: i’r gwrthwyneb ar gyfer traffig sy’n teithio tua’r de.

2. Y darnau o ffordd ymuno ac ymadael tua’r gogledd a tua’r de yr A449 wrth Gyfnewidfa Brynbuga, Sir Fynwy.

3. Y darnau o ffyrdd ymuno ac ymadael tua’r gogledd a tua’r de yr A449/A40 wrth Gyfnewidfa Rhaglan, Sir Fynwy.

Codir arwyddion priodol i nodi’r llwybrau eraill yn ystod y cyfnodau pan fydd y ffyrdd ymuno ac ymadael ar gau, sef ar hyd yr A449 a/neu’r A40 tua’r gogledd/de, fel y bo’n briodol.

ATODLEN 2

Terfynau cyflymder dros dro o 50 mya, 40 mya neu 10 mya a dim goddiweddyd

Y darn o gefnffordd yr A449 a’r A40 sy’n ymestyn o’u cyffordd â cherbytffordd gylchredol Cyfnewidfa Coldra, Casnewydd (Cyffordd 24 yr M4) hyd at ganolbwynt Chapel Lane, i’r gogledd o Drefynwy.

STATUTORY NOTICE

For a large print copy of this Notice contact 0300 0604400 or email Transportordersbranch@gov.wales

THE A449 & A40 TRUNK ROADS (COLDRA INTERCHANGE, NEWPORT TO THE WALES/ENGLAND BORDER, MONMOUTHSHIRE) (TEMPORARY TRAFFIC PROHIBITIONS & RESTRICTIONS) ORDER 202-

THE WELSH MINISTERS propose, in not less than 7 days from the date of this Notice, to make an Order under section 14 of the Road Traffic Regulation Act 1984, which is necessary to undertake works on or near the A449 and A40 trunk roads between the Coldra Interchange, Newport and the Wales/England border, north of Monmouth, Monmouthshire.

The effect of the proposed Order will be to temporarily:

i. prohibit all vehicles, other than those being used by the emergency services or for the works, from proceeding on the lengths of the A449 and A40 trunk roads specified in Schedule 1 to this Notice. The alternative routes are also described therein.

ii. impose a 50 mph, 40 mph or 10 mph speed limit on the length of the A40 and A449 trunk roads specified in Schedule 2 to this Notice. The 10 mph speed limit is only expected to operate during convoy working and no overtaking will be permitted at these times.

The Order will come into force on 17 August 2026. The temporary prohibitions and restrictions are expected to operate intermittently overnight (20:00 – 06:00 hours) from that date for a maximum duration of 18 months. Notice of closures will be displayed before the start of any works.

C WYNN, Transport, Welsh Government

SCHEDULE 1

Temporary prohibition of vehicles and alternative routes

1. The length of the A449 trunk road that extends from its junction with the circulatory carriageway of Coldra Interchange, Newport (M4 Junction 24) to the centre-point of the A449/A40 Raglan Interchange, Monmouthshire.

The alternative route for non-motorway northbound vehicles is via the westbound A48 Southern Distributor Road to Grove Park Roundabout, A4042 to Hardwick Roundabout and eastbound A40 to Raglan Interchange: vice versa for southbound traffic.

The alternative route for northbound motorway traffic is via the westbound M4 from Junction 24 to Junction 25A (Grove Park) and then follow the route described above: vice versa for southbound traffic.

2. The lengths of the A449 northbound and southbound exit and entry slip roads at Usk Interchange, Monmouthshire.

3. The lengths of the A449/A40 northbound and southbound exit and entry slip roads at Raglan Interchange, Monmouthshire.

The alternative routes for slip road closures will be signed with appropriate diversion signs and will be via the northbound/southbound A449 and/or A40, as appropriate.

SCHEDULE 2

Temporary 50 mph, 40 mph or 10 mph speed limits and no overtaking

The length of the A449 and A40 trunk roads that extends from its junction with the circulatory carriageway of Coldra Interchange, Newport (M4 Junction 24) to the centre-point of Chapel Lane, north of Monmouth.