A series of options were considered to repair the defect but the only viable option to ensure the long term resilience of the road was to carry out a full replacement of the defective structure.
Ystyriwyd cyfres o opsiynau i atgyweirio'r diffyg ond yr unig opsiwn hyfyw i sicrhau gwydnwch hirdymor y ffordd oedd gosod strwythur newydd yn lle'r un diffygiol.