A wnaiff y Gweinidog roi’r wybodaeth ddiweddaraf am gyflwr y pontydd ffyrdd rhwng cyffordd 23A a chyffordd 34 ar yr M4 yn ne-ddwyrain Cymru?
Wedi'i ateb gan Y Dirprwy Weinidog Newid Hinsawdd | Wedi'i ateb ar 16/08/2021
There are a total of 101 bridges between M4 J23A and 34. 64 of these are underbridges (i.e. carrying the M4) and 37 of these are overbridges (i.e. crossing the M4). Their condition varies depending on age and form of construction with inspection, maintenance and renewal being programmed to ensure they all remain safely in service.