A wnaiff y Gweinidog gadarnhau pryd y mae Llywodraeth Cymru yn bwriadu arwynebu'r M4 rhwng cyffordd 45 a chyffordd 46?
Wedi'i ateb gan Y Dirprwy Weinidog Newid Hinsawdd | Wedi'i ateb ar 25/05/2021
Resurfacing works at this location are currently anticipated to take place towards the end of 2022-23 as part of our Major Asset Renewal programme.
In the interim, our Trunk Road Agent will continue to inspect and repair any safety related defects as and when they arise.