Pa asesiad sydd wedi ei wneud o effaith maint y traffig sydd ar strwythur Pont Britannia?
Wedi'i ateb gan Y Dirprwy Weinidog Newid Hinsawdd | Wedi'i ateb ar 14/11/2022
No additional assessment is required regarding the Britannia Bridge and the volume of traffic currently using it. Bridges are assessed for the worst-case traffic loading, such as fully laden HGVs travelling quickly in close proximity. For a bridge assessment the full width of the carriageway is also used, so if you can physically fit in five lanes of HGVs across the width of the road on a bridge then that is used regardless of what lanes are actually marked out for use.
It is typically only where the carriageway is widened, or otherwise modified or as a result of deterioration that a bridge would have to be reassessed.