Cynnal a Chadw Ffyrdd

23/02/2026 - 20/03/2026
BONCATH
Dwr Cymru

Ffordd ar Gau
C3021 BWLCH-Y-GROES TO BONCATH
Mawr waith gan Ddwr Cymru

16/02/2026 - 16/02/2026
CLARBESTON ROAD
British Telecom

Ffordd ar Gau
LAMBOROUGH LANE
Mân waith British Telecom

09/02/2026 - 13/02/2026
HAVERFORDWEST
Cyngor Sir Penfro

Ffordd ar Gau
GREENHILL PARK DRIVE
Gwaith brys

10/02/2026 - 14/02/2026
NEWPORT
Arall

Ffordd ar Gau
FEIDR FELIN
Gwaith mawr British Telecom

17/02/2026 - 20/02/2026
NEWPORT
British Telecom

Ffordd ar Gau
GOAT STREET
Mân waith British Telecom

02/03/2026 - 20/03/2026
NEWPORT
Arall

Ffordd ar Gau
U3191 JCT C3029 TO MORFA ISAF
Mân waith British Telecom

17/02/2026 - 20/02/2026
NEWPORT
British Telecom

Ffordd ar Gau
FEIDR BENTICK
Mân waith British Telecom

10/02/2026 - 14/02/2026
NEWPORT
Arall

Ffordd ar Gau
MILL LANE
Gwaith mawr British Telecom

23/02/2026 - 05/04/2026
NEWPORT
Arall

Ffordd ar Gau
FFORDD CILGWYN
Gwaith mawr British Telecom

02/03/2026 - 20/03/2026
NEWPORT
Arall

Ffordd ar Gau
U3192 JCT U3197 VIA CWM-CENAU TO JCT C3029
Mân waith British Telecom

16/02/2026 - 18/02/2026
PEMBROKE
Arall

Ffordd ar Gau
BUTTERMILK LANE
Mân waith British Telecom

15/02/2026 - 15/02/2026
TENBY
British Telecom

Ffordd ar Gau
HEYWOOD LANE
Ail-osod offer BT

03/11/2025 - 03/05/2026
TENBY
Datblygwr

Ffordd ar Gau
ST NICHOLAS LANE
Gwaith Datblygu

19/01/2026 - 17/04/2026
NEYLAND
Cyngor Sir Penfro

Goleuadau Traffig
A477 CLEDDAU BRIDGE TO HONEYBOROUGH ROUNDABOUT
Adnewyddu Bont

19/01/2026 - 18/04/2026
NEYLAND
Cyngor Sir Penfro

Goleuadau Traffig
A477 CLEDDAU BRIDGE TO HONEYBOROUGH ROUNDABOUT
Adnewyddu Bont

02/03/2026 - 03/03/2026
HAVERFORDWEST
Arall

Ffordd ar Gau
C3042 JCT U3067 TO C3067 CORNER HOUSE
Arall

02/03/2026 - 03/03/2026
HAVERFORDWEST
Arall

Ffordd ar Gau
C3042 JCT U3067 TO C3067 CORNER HOUSE
Arall

16/02/2026 - 16/02/2026
HAVERFORDWEST
Arall

Ffordd ar Gau
C3019 JCT U3056 TO CASTLE MORRIS
Mân waith British Telecom

16/02/2026 - 16/02/2026
HAVERFORDWEST
Arall

Ffordd ar Gau
C3019 JCT U3056 TO CASTLE MORRIS
Mân waith British Telecom

09/02/2026 - 13/02/2026
NEWPORT
British Telecom

Ffordd ar Gau
C3043 JCT C3171 CILGWYN TO JCT U3151
Gwaith brys

23/02/2026 - 06/03/2026
HAVERFORDWEST
Arall

Ffordd ar Gau
C3087 JCT C3002 NEWBRIDGE TO JCT B4329 POYSTON CROSS
Gwaith mawr British Telecom

23/02/2026 - 06/03/2026
HAVERFORDWEST
Arall

Ffordd ar Gau
C3087 JCT U6169 POYSTON LANE TO JCT B4329 CROSS LANE
Gwaith mawr British Telecom

23/02/2026 - 06/03/2026
HAVERFORDWEST
Arall

Ffordd ar Gau
C3087 JCT U6169 POYSTON LANE TO JCT B4329 CROSS LANE
Gwaith mawr British Telecom

11/02/2026 - 12/02/2026
NEWPORT
Dwr Cymru

Ffordd ar Gau
FEIDR FAWR
Cysylltiad gwasanaeth newydd

12/02/2026 - 13/02/2026
MILFORD HAVEN
Arall

Ffordd ar Gau
ST CLEMENTS ROAD
Gwaith mawr British Telecom

25/02/2026 - 26/02/2026
TENBY
British Telecom

Ffordd ar Gau
U6321
Mân waith gan BT

16/02/2026 - 22/02/2026
FISHGUARD
British Telecom

Ffordd ar Gau
U3150 VIA GELLIFAWR
Mân waith British Telecom

16/02/2026 - 20/02/2026
FISHGUARD
British Telecom

Ffordd ar Gau
C3043 JCT C3171 TYRIET CROSS TO PONTFAEN
Mân waith British Telecom

23/02/2026 - 06/03/2026
HAVERFORDWEST
Arall

Ffordd ar Gau
C3087 POYSTON CROSS TO JCT A40T
Gwaith mawr British Telecom

02/03/2026 - 20/03/2026
CARDIGAN
Arall

Ffordd ar Gau
C3029 JCT A487T NEWPORT TOWN CNTE VIA MOLYGROVE TO JCT C3144 STH STDOGMAELS
Mân waith gan BT

16/02/2026 - 02/03/2026
HAVERFORDWEST
Grid Cenedlaethol

Ffordd ar Gau
C3125 WALWYNS CASTLE TO CAPESTON
Gwaith mawr Grid Cenedlaethol

16/02/2026 - 02/03/2026
MILFORD HAVEN
Grid Cenedlaethol

Ffordd ar Gau
C3085 CAPESTON TO JCT C3001
Gwaith mawr Grid Cenedlaethol