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A470 Taffs Well Gyratory, Cardiff - Temporary Road Closure
What is happening?
GORCHYMYN CYNGOR SIR DINAS A SIR CAERDYDD (FFORDD GYLCHOL FFYNNON TAF, A470, CAERDYDD) (CAU FFYRDD DROS DRO) 2026
Ar 20 Awst 2026, gwnaeth Cyngor Sir Dinas a Sir Caerdydd wrth arfer ei bwerau dan Adran 14(1) Deddf Rheoleiddio Traffig Ffyrdd 1984 (fel y’i diwygiwyd) a’r holl bwerau galluogi eraill, Orchymyn a fydd yn gwahardd unrhyw gerbyd rhag defnyddio neu deithio ar hyd y darnau o ffordd a nodir yn yr atodlen isod.
Mae’r Gorchymyn yn angenrheidiol i hwyluso gwaith ar y briffordd neu gerllaw iddi, a disgwylir iddo fod mewn grym o ddydd Sadwrn 22 Awst 2026 tan 5 Medi 2026 neu nes i’r gwaith gael ei gwblhau. Disgwylir mai o 8:00pm bob nos tan 6.00am bob bore y bydd y gwaith yn digwydd.
Dim ond ar yr adegau ac i’r graddau a nodir ar arwyddion a/neu hysbysiadau sy’n cael eu harddangos y bydd y cyfyngiad dan sylw ar waith.
Enw’r Gorchymyn fydd “Gorchymyn Cyngor Sir Dinas a Sir Caerdydd (Ffordd Gylchol Ffynnon Taf, A470, Caerdydd) (Cau Ffordd Dros Dro) 2026”.
ATODLEN
• A4054 Heol Caerdydd o’r ffin sirol i’r gyffordd â chylchfan Ffynnon Taf
Y llwybr amgen ar gyfer cerbydau yr effeithir arnynt gan y gorchymyn cau hwn fydd ar hyd Ffordd Bleddyn, Moy Road, A4054 Heol Caerdydd, A4054 Heol Caerffili a’r A470 tua’r de
• A4054 Heol Merthyr o’r gyffordd â Birch Hill i’r gyffordd â chylchfan Ffynnon Taf
Y llwybr amgen ar gyfer cerbydau yr effeithir arnynt gan y gorchymyn cau hwn fydd ar hyd yr A4054 Heol Merthyr, Cyfnewidfa Coryton, A470 Rhodfa’r Gogledd, Ffordd y Faenor, Heol Merthyr, Heol Caerffili, Cyfnewidfa Gabalfa, A48 Rhodfa’r Gorllewin, A4119 Heol Caerdydd, Stryd y Bont, Heol Llantrisant, B4262 Heol Isaf, Gelynis Terrace North a Heol Tŷ Nant
• B4262 Pont yr Ynys o’r gyffordd â’r Heol Fawr i’r gyffordd â chylchfan Ffynnon Taf
Y llwybr amgen ar gyfer cerbydau yr effeithir arnynt gan y gorchymyn cau hwn fydd ar hyd yr A4054 Heol Tŷ Nant, Gelynis Terrace North, Heol Isaf, A4119 Heol Llantrisant, Stryd y Bont, Heol Caerdydd, A48 Rhodfa’r Gorllewin, Cyfnewidfa Gabalfa, A470 Heol y Gogledd, Heol Merthyr, Ffordd y Faenor, Rhodfa’r Gogledd a’r A470 tua’r gogledd
Dyddiedig: 21 Awst 2026
Gwasanaethau Cyfreithiol, Neuadd y Sir, Glanfa’r Iwerydd, Caerdydd CF10 4UW
THE COUNTY COUNCIL OF THE CITY AND COUNTY OF CARDIFF (A470 TAFFS WELL GYRATORY, CARDIFF) (TEMPORARY ROAD CLOSURES) ORDER 2026
On the 20th August 2026, The County Council of the City and County of Cardiff in exercise of its powers under Section 14(1) of the Road Traffic Regulation Act 1984 (as amended), and of all other enabling powers, made an Order the general effect of which is to prevent any vehicle from using or proceeding along the lengths of road specified in the Schedule below.
This Order is necessary to facilitate works on or near the highway and is expected to be in operation from Saturday 22nd August 2026 until 5th September 2026 or until works are complete. The hours of operation are expected to be from 8.00pm each evening until 6.00am each morning.
The restriction specified will only have the effect at such times and to such extent as
indicated by the display of signs and/or notices.
This Order is known as “The County Council of The City and County of Cardiff (A470 Taffs Well Gyratory, Cardiff) (Temporary Road Closures) Order 2026”.
SCHEDULE
• A4054 Cardiff Road from the county boundary to its junction with the Taffs Well roundabout
The alternative route for vehicles affected by this closure will be via Ffordd Bleddyn, Moy Road, A4054 Cardiff Road, A4054 Caerphilly Road and the A470 in a southbound direction
• A4054 Merthyr Road from its junction with Birch Hill to its junction with the Taffs Well roundabout
The alternative route for vehicles affected by this closure will be via A4054 Merthyr Road, Coryton Interchange, A470 Northern Avenue, Manor Way, Merthyr Road, Caerphilly Road, Gabalfa Interchange, A48 Western Avenue, A4119 Cardiff Road, Bridge Street, Llantrisant Road, B4262 Heol Isaf, Gelynis Terrace North and Ty-Nant Road
• B4262 Ynys Bridge from its junction with Main Road to its junction with the Taffs Well roundabout
The alternative route for vehicles affected by this closure will be via the B4262 Ty-Nant Road, Gelynis Terrace North, Heol Isaf, A4119 Llantrisant Road, Bridge Street, Cardiff Road, A48 Western Avenue, Gabalfa Interchange, A470 North Road, Merthyr Road, Manor Way, Northern Avenue and the A470 in a northbound direction
Dated: 21st August 2026
Legal Services, County Hall, Atlantic Wharf, Cardiff City of Cardiff Council
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