A4143 Safeway to heads of the valley road, Abergavenny - Temporary restrictions for resurfacing works

CYNGOR SIR FYNWY                    
HYSBYSIAD RHEOLEIDDIO TRAFFIG DROS DRO 
ADRAN 14 - DEDDF RHEOLEIDDIO TRAFFIG FFORDD 1984  

CYNGOR SIR FYNWY
(A4143 SAFEWAY I HEOL BLAENAU’R CYMOEDD, Y FENNI,  SIR FYNWY)
HYSBYSIAD RHEOLEIDDIO TRAFFIG DROS DRO 2026

HYSBYSIR DRWY HYN bod CYNGOR SIR FYNWY, Neuadd y Sir, y Rhadyr, Brynbuga, NP15 1GA ("y Cyngor") yn bwriadu gwneud Gorchymyn yn unol â'r pwerau a roddwyd gan Adran 14(1)(a) o Ddeddf Rheoleiddio Traffig Ffyrdd 1984:

1.  Daw’r Gorchymyn i rym ar 20fed Mawrth 2026 a bydd yn parhau i fod mewn grym am gyfnod nad yw'n hwy na 18 mis neu nes bod y gwaith y cynigir ei wneud wedi'i gwblhau, pa un bynnag yw'r cynharaf. Rhagwelir y bydd y gwaith yn cael ei gwblhau rhwng 20fed Mawrth 2026 a’r 3ydd Ebrill 2026, gan weithredu rhwng 20:00 – 06:00. 

2.     Mae'r Gorchymyn yn angenrheidiol er mwyn i ailosod wyneb y ffordd mewn modd diogel yn y lleoliad.  Bydd mynediad rhesymol yn cael ei gynnal ar gyfer eiddo sydd ar hyd y ffyrdd a effeithir arnynt tra y bydd yr heol ar gau. 

3.   Effaith y Gorchymyn fydd:
I. Cau dros dro ran o'r A4143 Safeway i Heol Blaenau’r Cymoedd, Y Fenni, Sir Fynwy, o'r gyffordd â Heol Merthyr, yr A4143, am tua 200m.
II. Cau'r Ffordd Ymadael i'r Dwyrain dros dro ar gyfer Heol Blaenau’r Cymoedd.
III. Cau'r Ffordd Ymadael i'r Dwyrain dros dro ar gyfer Heol Blaenau’r Cymoedd. 

4.     Bydd llwybr dargyfeirio fel a ganlyn: 
Llwybr Dargyfeirio A: A4143 Heol Merthyr, A4143 Llan-ffwyst i'r Fenni, A40 Heol Aberhonddu, A40 Heol y Parc, A40 Heol Henffordd, A40 Stryd y Mynach, A40 Stryd y Groes, A40 Heol  Trefynwy, A465 ac i'r gwrthwyneb. Llwybr Dargyfeirio B: A465, Cylchfan Hardwick, A465 Heol Blaenau’r Cymoedd tua'r Gorllewin, A465 Ffordd Ymadael Blaenau'r Dyffryn tua'r Gorllewin, Ffordd Zinnia, A4143 Ffordd Merthyr ac i'r gwrthwyneb. 

5.     Gellir enwi'r Gorchymyn hwn fel Gorchymyn Rheoleiddio Traffig Dros Dro A4143 Safeway i Heol Blaenau’r Cymoedd, Y Fenni, Sir Fynwy 2026. 

6.     Yn sgil Adran 16(1) Deddf Rheoleiddio Traffig Ffordd 1984 bydd person sy'n torri cyfyngiad neu waharddiad a osodir dan Adran 14 y Ddeddf yn euog o drosedd.

 Dyddiad: 11eg Mawrth 2026

Carl Touhig
Pennaeth Gwasanaethau Cymdogaeth
Cyngor Sir Fynwy
Neuadd y Sir
Y Rhadyr
Brynbuga
Sir Fynwy
NP15 1GA  


MONMOUTHSHIRE COUNTY COUNCIL
TEMPORARY TRAFFIC REGULATION NOTICE
SECTION 14 - ROAD TRAFFIC REGULATION ACT 1984  

MONMOUTHSHIRE COUNTY COUNCIL
(A4143 SAFEWAY TO HEADS OF THE VALLEY ROAD, ABERGAVENNY, MONMOUTHSHIRE)
TEMPORARY TRAFFIC REGULATION NOTICE 2026  

NOTICE IS HEREBY GIVEN that MONMOUTHSHIRE COUNTY COUNCIL of County Hall, The Rhadyr, Usk, NP15 1GA (“the Council”) Intends to make an order pursuant to the powers conferred by Section 14(1)(a) of the Road Traffic Regulation Act 1984  

1.     The Order shall come into operation on the 20th March 2026 and will continue to be in force for a period not exceeding 18 months or until the works which it is proposed to carry out have been completed, whichever is the earlier. It is anticipated that the works will be completed between 20th March 2026 and 3rd April 2026, operating between 20:00 – 06:00.  

2.     The order is necessary for Resurfacing works to take place in a safe manner at the location. Reasonable access will be maintained for properties fronting the affected lengths of road during the period of the closure.  
3.     The effect of the order will be :
I.   To temporarily close a section of A4143 Safeway to Heads of the Valley Road, Abergavenny, Monmouthshire, from its junction with A4143 Merthyr Road for ~200m.
II.   To temporarily close the Heads of the Valley East Bound Off Slip closed by default
III.    To temporarily close the Heads of the Valley East Bound On Slip closed by default  

4.   A signed diversionary route will be in place as follows:-
Diversion Route A: A4143 Merthyr Road, A4143 Llanfoist to Abergavenny, A40 Brecon Road, A40 Park Road, A40 Hereford Road, A40 Monk Street,A40 Cross Street, A40 Monmouth Road, A465 and vice versa. Diversion Route B: A465, Hardwick Roundabout, A465 Heads of the Valley West Bound, A465 Heads of the Valley West Bound Off Slip, Zinnia Way, A4143 Merthyr Road and vice versa.  

5.     This order may be cited as the A4143 Safeway to Heads of the Valley Road, Abergavenny, Monmouthshire Temporary Traffic Regulation Order 2026  

6.     By virtue of Section 16(1) of the Road Traffic Regulation Act 1984 a person who contravenes a restriction or prohibition imposed under Section 14 of the Act shall be guilty of an offence.

Dated: 11th March 2026  

Carl Touhig
Head of Neighbourhood Services
Monmouthshire County Council
County Hall
The Rhadyr
Usk
Monmouthshire
NP15 1GA